Musical Fidelity

Measure 4 output transistors for precision matching
Customise output chokes for fine tuned matching
Bypass PSU electrolytics with polycarbonate/polyester type
Replace internal L/S cables with LC/OFC low resistance type
Check regulators for noise and voltage accuracy, replace if needed
Pure copper noise nulling screen fitted to PSU caps
Precision re-bias
Check channel balance exceeds original specification
Replace PSU and supply bypass caps with high grade polypropylene
Realign volume control
Pure copper noise nulling belly band screen fitted to mains transformer
Refurbish all sockets, check for wear, replace if needed
Check PSU caps ESR, replace if needed
Fit premium grade gold plated operational amp sockets
Realign power transformer
Service selector switch and volume control
Replace decoupling caps polycarbonate/polyester type
Replace operational amps with selected premium grade types
Adjust for minimum output DC offset
Bypass all audio path electrolytics with high grade polypropylene
Computer recalibration to confirm that the unit exceeds original specification
Soak test over 10 days
Log owner name, model and serial number in Musical Fidelity archives
Issue certificate signed by Antony Michaelson

Cost; £399 inc. VAT
In the UK we will pay freight to your house.
Overseas clients; all freight charges in both directions, customs clearance charges and duties at your cost.

E & OE

A100 integrated amp upgrade schedule

Measure 4 output transistors for precision matching
Check PSU caps ESR, replace if needed
Bypass PSU electrolytics with polycarbonate/polyester type
Check regulators for noise and voltage accuracy, replace if needed
Replace decoupling caps polycarbonate/polyester type
Precision re-bias
Replace internal L/S cables with LC/OFC low resistance type
Check channel balance exceeds original specification
Customise output chokes for fine tuned matching
Pure copper noise nulling screen fitted to PSU caps
Replace PSU and supply bypass caps with high grade polypropylene
Realign volume control
Pure copper noise nulling belly band screen fitted to mains transformer
Refurbish all sockets, check for wear, replace if needed
Fit premium grade gold plated operational amp sockets
Realign power transformer
Service selector switch and volume control
Realign/reset fans
Replace operational amps with selected premium grade types
Adjust for minimum output DC offset
Bypass all audio path electrolytics with high grade polypropylene
Computer recalibration to confirm that the unit exceeds original specification
Soak test over 10 days
Log owner name, model and serial number in Musical Fidelity archives
Issue certificate signed by Antony Michaelson

Cost; £499 inc. VAT
In the UK we will pay freight to your house.
Overseas clients; all freight charges in both directions, customs clearance charges and duties at your cost.

E & OE

A1000 Integrated amp upgrade schedule

Adjust for minimum output DC offset
Replace decoupling caps polycarbonate/polyester type
Check auto bias on 4 x VQ1000
Check channel balance exceeds original specification
Pure copper noise nulling screen fitted to PSU caps
Bypass all audio path electrolytics with high grade polypropylene
Replace internal L/S cables with LC/OFC low resistance type
Measure 16 output transistors for precision matching
Customise output chokes for fine tuned matching
Service selector switch and volume control
Fit premium grade gold plated operational amp sockets
Pure copper noise nulling belly band screen fitted to mains transformer
Precision re-bias
Check regulators for noise and voltage accuracy, replace if needed
Replace turn on delay circuit mains buffer resistor
Check PSU caps ESR, replace if needed
Reset choke regulation alignment
Bypass PSU electrolytics with polycarbonate/polyester type
Realign volume control
Refurbish all connector leads and plugs
Replace PSU and supply bypass caps with high grade polypropylene
Replace operational amps with selected premium grade types
Realign power transformer
Computer recalibration to confirm that unit exceeds original specification
Soak test over 10 days
Log owner name, model and serial number in Musical Fidelity archives
Issue certificate signed by Antony Michaelson

Cost; £599 inc. VAT
In the UK we will pay freight to your house.
Overseas clients; all freight charges in both directions, customs clearance charges and duties at your cost.

E & OE

A1008 Integrated amp upgrade schedule

Adjust for minimum output DC offset
Pure copper noise nulling screen fitted to PSU caps
Realign power transformer
Replace PSU and supply bypass caps with high grade polypropylene
Replace internal L/S cables with LC/OFC low resistance type
Heater current, audio characteristics and transconductance matched
Customise output chokes for fine tuned matching
Bypass all audio path electrolytics with high grade polypropylene
Precision re-bias
Refurbish connector leads and plugs
Bypass PSU electrolytics with polycarbonate/polyester type
Check channel balance exceeds original specification
Replace decoupling caps polycarbonate/polyester type
Check PSU caps ESR, replace if needed
Pure copper noise nulling screen fitted to motorized volume control
Check regulators for noise and voltage accuracy, replace if needed
Reset choke regulation alignment
Realign volume control
Service selector switch and volume control
Fit premium grade gold plated operational amp sockets
Measure 8 output transistors for precision matching
Pure copper noise nulling belly band screen fitted to mains transformer
Replace 2 x ECC88 tubes with precision matched pairs
Replace operational amps with selected premium grade types
Soak test over 10 days
Computer recalibration to confirm that unit exceeds original specification
Upload latest software specification
Log owner name, model and serial number in Musical Fidelity archives
Issue certificate signed by Antony Michaelson

Cost; £599 inc VAT
In the UK we will pay freight to your house.
Overseas clients; all freight charges in both directions, customs clearance charges and duties at your cost.

E & OE

A3 Integrated amp upgrade schedule

Replace internal L/S cables with LC/OFC low resistance type
Service selector switch and volume control
Adjust for minimum output DC offset
Replace PSU and supply bypass caps with high grade polypropylene
Replace operational amps with selected premium grade types
Pure copper noise nulling belly band screen fitted to mains transformer
Realign volume control
Check PSU caps ESR, replace if needed
Replace decoupling caps polycarbonate/polyester type
Realign power transformer
Bypass all audio path electrolytics with high grade polypropylene
Customise output chokes for fine tuned matching
Fit premium grade gold plated operational amp sockets
Upload latest software specification
Heater current, audio characteristics and transconductance matched
Pure copper noise nulling screen fitted to motorized volume control
Bypass PSU electrolytics with polycarbonate/polyester type
Check channel balance exceeds original specification
Pure copper noise nulling screen fitted to PSU caps
Check regulators for noise and voltage accuracy, replace if needed
Refurbish sockets, check for wear, replace if needed
Measure 8 output transistors for precision matching
Precision re-bias
Computer recalibration to confirm that unit exceeds original specification
Soak test over 10 days
Log owner name, model and serial number in Musical Fidelity archives
Issue certificate signed by Antony Michaelson

Cost; £399 inc. VAT
In the UK we will pay freight to your house.
Overseas clients; all freight charges in both directions, customs clearance charges and duties at your cost.

E & EO

A3.2 Integrated amp upgrade schedule

Bypass PSU electrolytics with polycarbonate/polyester type
Adjust for minimum output DC offset
Pure copper noise nulling belly band screen fitted to mains transformer
Customise output chokes for fine tuned matching
Replace operational amps with selected premium grade types
Refurbish sockets, check for wear, replace if needed
Check channel balance exceeds original specification
Realign volume control
Check PSU caps ESR, replace if needed
Replace decoupling caps polycarbonate/polyester type
Service selector switch and volume control
Replace PSU and supply bypass caps with high grade polypropylene
Realign power transformer
Bypass all audio path electrolytics with high grade polypropylene
Pure copper noise nulling screen fitted to PSU caps
Fit premium grade gold plated operational amp sockets
Upload latest software specification
Heater current, audio characteristics and transconductance matched
Replace internal L/S cables with LC/OFC low resistance type
Pure copper noise nulling screen fitted to motorized volume control
Check regulators for noise and voltage accuracy, replace if needed
Measure 8 output transistors for precision matching
Precision re-bias
Computer recalibration to confirm that unit exceeds original specification
Soak test over 10 days
Log owner name, model and serial number in Musical Fidelity archives
Issue certificate signed by Antony Michaelson

Cost; £399 inc. VAT
In the UK we will pay freight to your house.
Overseas clients; all freight charges in both directions, customs clearance charges and duties at your cost.

E & OE

A308 Integrated amp upgrade schedule

Fit premium grade gold plated operational amp sockets
Customise output chokes for fine tuned matching
Service selector switch and volume control
Realign power transformer
Refurbish sockets, check for wear, replace if needed
Bypass PSU electrolytics with polycarbonate/polyester type
Precision re-bias
Check overvoltage winding
Adjust for minimum output DC offset
Replace internal L/S cables with LC/OFC low resistance type
Pure copper noise nulling belly band screen fitted to mains transformer
Bypass all audio path electrolytics with high grade polypropylene
Check regulators for noise and voltage accuracy, replace if needed
Replace PSU and supply bypass caps with high grade polypropylene
Check channel balance exceeds original specification
Realign volume control
Pure copper noise nulling screen fitted to PSU caps
Check PSU caps ESR, replace if needed
Replace decoupling caps polycarbonate/polyester type
Measure 8 output transistors for precision matching
Pure copper noise nulling screen fitted to motorized volume control
Replace operational amps with selected premium grade types
Reset overvoltage PSU
Computer recalibration to confirm that unit exceeds original specification
Soak test over 10 days
Upload latest software specification
Log owner name, model and serial number in Musical Fidelity archives
Issue certificate signed by Antony Michaelson

Cost; £499 inc. VAT
In the UK we will pay freight to your house.
Overseas clients; all freight charges in both directions, customs clearance charges and duties at your cost.

E & OE

A5 Integrated amp upgrade schedule

Check PSU caps ESR, replace if needed
Bypass PSU electrolytics with polycarbonate/polyester type
Adjust for minimum output offset
Replace PSU and supply bypass caps with high grade polypropylene
Pure copper noise nulling screen fitted to PSU caps
Check channel balance exceeds original specification
Replace internal L/S cables with LC/OFC low resistance type
Realign volume control
Check regulators for noise and voltage accuracy, replace if needed
Pure copper noise nulling belly band screen fitted to mains transformer
Refurbish sockets, check for wear, replace if needed
Replace decoupling caps polycarbonate/polyester type
Customise output chokes for fine tuned matching
Bypass all audio path electrolytics with high grade polypropylene
Measure 8 output transistors for precision matching
Realign power transformer
Fit premium grade gold plated operational amp sockets
Service selector switch and volume control
Precision re-bias
Replace operational amps with selected premium grade types
Pure copper noise nulling screen fitted to motorized volume control
Upload latest software specification
Soak test over 10 days
Computer recalibration to confirm that units exceeds original specification
Log owner name, model and serial number in Musical Fidelity archives
Issue certificate signed by Antony Michaelson

Cost; £499 inc. VAT
In the UK we will pay freight to your house.
Overseas clients; all freight charges in both directions, customs clearance charges and duties at your cost.

E & OE

A5.5 Integrated amp upgrade schedule

Realign power transformer
Customise output chokes for fine tuned matching
Pure copper noise nulling screen fitted to PSU caps
Adjust for minimum output offset
Replace PSU and supply bypass caps with high grade polypropylene
Check channel balance exceeds original specification
Measure 8 output transistors for precision matching
Replace internal L/S cables with LC/OFC low resistance type
Realign volume control
Check regulators for noise and voltage accuracy, replace if needed
Pure copper noise nulling belly band screen fitted to mains transformer
Bypass all audio path electrolytics with high grade polypropylene
Refurbish sockets, check for wear, replace if needed
Replace decoupling caps polycarbonate/polyester type
Fit premium grade gold plated operational amp sockets
Service selector switch and volume control
Precision re-bias
Check PSU caps ESR, replace if needed
Bypass PSU electrolytics with polycarbonate/polyester type
Replace operational amps with selected premium grade types
Pure copper noise nulling screen fitted to motorized volume control
Upload latest software specification
Soak test over 10 days
Computer recalibration to confirm that units exceeds original specification
Log owner name, model and serial number in Musical Fidelity archives
Issue certificate signed by Antony Michaelson

Cost; £499 inc. VAT
In the UK we will pay freight to your house.
Overseas clients; all freight charges in both directions, customs clearance charges and duties at your cost.

E & OE

B1/Tempest integrated amp upgrade schedule

Replace PSU and supply bypass caps with high grade polypropylene
Bypass all audio path electrolytics with high grade polypropylene
Adjust for minimum output DC offset
Measure 8 output transistors for precision matching devices
Refurbish sockets, check for wear, replace if needed
Check channel balance exceeds original specification
Replace decoupling caps polycarbonate/polyester type
Realign volume control
Pure copper noise nulling belly band screen fitted to mains transformer
Check PSU caps ESR, replace if needed
Replace operational amps with selected premium grade types
Check regulators for noise and voltage accuracy, replace if needed
Service selector switch and volume control
Upload latest software specification
Realign power transformer
Customise output chokes for fine tuned matching
Replace internal L/S cables with LC/OFC low resistance type
Bypass PSU electrolytics with polycarbonate/polyester type
Fit premium grade gold plated operational amp sockets
Precision re-bias
Pure copper noise nulling screen fitted to PSU caps
Computer recalibration to confirm that unit exceeds original specification
Soak test over 10 days
Log owner name, model and serial number in Musical Fidelity archives
Issue certificate signed by Antony Michaelson

Cost; £349 inc. VAT
In the UK we will pay freight to your house.
Overseas clients; all freight charges in both directions, customs clearance charges and duties at your cost.

E & OE

B200 integrated amp upgrade schedule

Fit premium grade gold plated operational amp sockets
Replace PSU and supply bypass caps with high grade polypropylene
Bypass all audio path electrolytics with high grade polypropylene
Adjust for minimum output DC offset
Customise output chokes for fine tuned matching
Service selector switch and volume control
Measure 4 output transistors for precision matching devices
Refurbish sockets, check for wear, replace if needed
Bypass PSU electrolytics with polycarbonate/polyester type
Check channel balance exceeds original specification
Replace decoupling caps polycarbonate/polyester type
Realign volume control
Pure copper noise nulling belly band screen fitted to mains transformer
Check PSU caps ESR, replace if needed
Replace operational amps with selected premium grade types
Check regulators for noise and voltage accuracy, replace if needed
Upload latest software specification
Realign power transformer
Replace internal L/S cables with LC/OFC low resistance type
Precision re-bias
Pure copper noise nulling screen fitted to PSU caps
Computer recalibration to confirm that unit exceeds original specification
Log owner name, model and serial number in Musical Fidelity archives
Issue certificate signed by Antony Michaelson

Cost; £399 inc. VAT
In the UK we will pay freight to your house.
Overseas clients; all freight charges in both directions, customs clearance charges and duties at your cost.

E & OE

kW250S “all in one” upgrade schedule

Bypass PSU electrolytics with polycarbonate/polyester type
Replace regulators with selected premium types
Precision match output chokes
Replace bypass caps from ceramic to polycarbonate/polyester
Pure copper noise nulling screen fitted to PSU caps
Replace all audio path electrolytics with low ESR, high temp. type
Pure copper noise nulling belly band screen fitted to 2 mains transformers
Measure 8 output transistors for precision matching
Precision re-bias
Upgrade op amps to professional spec type
Replace ceramic bypass caps with polycarbonate/polyester type
Update software
Fit new precision clock pcb
Service and realign laser
Improve digital and analog supply decoupling
Replace 2 tubes with matched pairs
Heater current, audio characteristics and transconductance matched.
Check FM performance to latest specification
Check DAB functions
Check whole tuner system for minimum interference
Reset tuner clock system
Replace internal loudspeaker cabling with super low resistance low capacitance type
Log owner name, model and serial number in Musical Fidelity archives
Issue certificate signed by Antony Michaelson
Soak test for 48 hours

Cost; £999 Inc VAT
In the UK we will pay freight to your house.
Overseas clients; all freight charges in both directions, customs clearance charges and duties at your cost.

E & OE

kW500 Integrated amp upgrade schedule

Upload latest software specification
Check PSU caps ESR, replace if needed
Pure copper noise nulling screen fitted to motorized volume control
Replace operational amps with selected premium grade types
Adjust for minimum output DC offset
Service selector switch and volume control
Refurbish sockets, check for wear, replace if needed
Realign volume control
Replace PSU and supply bypass caps with high grade polypropylene
Replace decoupling caps with polycarbonate/polyester type
Bypass PSU electrolytics with polycarbonate/polyester type
Customise output chokes for fine tuned matching
Pure copper noise nulling belly band screen fitted to mains transformer
Refurbish connector leads and plugs
Bypass all audio path electrolytics with high grade polypropylene
Precision re-bias
Check channel balance exceeds original specification
Pure copper noise nulling screen fitted to PSU caps
Realign power transformer
Replace internal L/S cables with LC/OFC low resistance type
Measure 8 output transistors for precision matching
Check regulators for noise and voltage accuracy, replace if needed
Fit premium grade gold plated operational amp sockets
Replace 2 x 6112 tubes with precision matched pairs
Heater current, audio characteristics and transconductance matched
Soak test over 10 days
Computer calibration to confirm that unit exceeds original specification
Log owner name, model and serial number in Musical Fidelity archives
Issue certificate signed by Antony Michaelson

Cost; £699 inc. VAT
In the UK we will pay freight to your house.
Overseas clients; all freight charges in both directions, customs clearance charges and duties at your cost.

E & OE

kW550 Integrated amp upgrade schedule

Precision re-bias
Replace decoupling caps with polycarbonate/polyester type
Upload latest software specification
Adjust for minimum output DC offset
Realign volume control
Check channel balance exceeds original specification
Pure copper noise nulling screen fitted to motorized volume control
Replace internal L/S cables with L/COFC low resistance type
Realign/reset fans
Customise output chokes for fine tuned matching
Bypass all audio path electrolytics with high grade polypropylene
Measure 24 output transistors for precision matching
Pure copper noise nulling screen fitted to PSU caps
Bypass PSU electrolytics with polycarbonate/polyester type
Replace 2 x 6SL7 tubes with precision matched pairs
Check PSU caps ESR, replace if needed
Refurbish sockets, check for wear, replace if needed
Replace PSU and supply bypass caps with high grade polypropylene
Fit premium grade gold plated operational amp sockets
Heater current, audio characteristics and transconductance matched
Service selector switch and volume control
Check regulators for noise and voltage accuracy, replace if needed
Realign power transformer
Pure copper noise nulling belly band screen fitted to mains transformer
Replace operational amps with selected premium grade types
Refurbish connector leads and plugs
Soak test over 10 days
Computer recalibration to confirm that unit exceeds original specification
Log owner name, model and serial number in Musical Fidelity archives
Issue certificate signed by Antony Michaelson

Cost; £699 inc. VAT
In the UK we will pay freight to your house.
Overseas clients; all freight charges in both directions, customs clearance charges and duties at your cost.

E & OE

Nu-Vista M3 Integrated amp upgrade schedule

Check PSU caps ESR, replace if needed
Precision re-bias
Refurbish connector leads and plugs
Bypass all audio path electrolytics with high grade polypropylene
Upload latest software specification
Replace decoupling caps with polycarbonate/polyester type
Customise output chokes for fine tuned matching
Bypass PSU electrolytics with polycarbonate/polyester type
Refurbish sockets, check for wear, replace if needed
Adjust for minimum DC offset
Reset choke regulation alignment
Replace PSU and supply bypass caps with high grade polypropylene
Service selector switch and volume control
Replace operational amps with selected premium grade types
Check channel balance exceeds original specification
Check regulators for noise and voltage accuracy, replace if needed
Measure 16 output transistors for precision matching
Fit premium grade gold plated operational amp sockets
Heater current, audio characteristics and transconductance matched
Replace internal L/S cables with LC/OFC low resistance type
Replace 4 Nuvistor tubes with precision matched pairs
Soak test over 10 days
Computer recalibration to confirm that unit exceeds original specification
Log owner name, model and serial number in Musical Fidelity archives
Issue certificate signed by Antony Michaelson

Cost; £699 inc. VAT
In the UK we will pay freight to your house.
Overseas clients; all freight charges in both directions, customs clearance charges and duties at your cost.

E & OE

Tri-Vista 300 Integrated amp upgrade schedule

Upload latest software specification
Bypass all audio path electrolytics with high grade polypropylene
Replace operational amps with selected premium grade types
Realign volume control
Replace PSU and supply bypass caps with high grade polypropylene
Refurbish connector leads and plugs
Realign power transformer
Bypass PSU caps with polycarbonate/polyester type
Reset choke regulation alignment
Replace internal L/S cables with LC/OFC low resistance type
Check channel balance exceeds original specification
Pure copper noise nulling screen fitted to PSU caps
Precision re-bias
Pure copper noise nulling belly band screen fitted to mains transformer
Customise output chokes for fine tuned matching
Adjust for minimum output DC offset
Pure copper noise nulling screen fitted to PSU caps
Replace decoupling caps with polycarbonate/polyester type
Service selector switch and volume control
Refurbish sockets, check for wear, replace if needed
Pure copper noise nulling screen fitted to motorized volume control
Check regulators for noise and voltage accuracy, replace if needed
Fit premium grade gold plated operational amp sockets
Measure 16 output transistors for precision matching
Replace 4 x 5703 Trivistor tubes with precision matched pairs
Check PSU caps ESR, replace if needed
Heater current, audio characteristics and transconductance matched
Soak test over 10 days
Computer recalibration to confirm that unit exceeds original specification
Log owner name, model and serial number in Musical Fidelity archives
Issue certificate signed by Antony Michaelson

Cost; £699 inc. VAT
In the UK we will pay freight to your house.
Overseas clients; all freight charges in both directions, customs clearance charges and duties at your cost.

E & OE

X-150 integrated amp upgrade schedule

Check PSU caps ESR, replace if needed
Replace decoupling caps with polycarbonate/polyester type
Adjust for minimum output DC offset
Measure 8 output transistors for precision matching
Pure copper noise nulling screen fitted to motorized volume control
Bypass PSU electrolytics with polycarbonate/polyester type
Customise output chokes for fine tuned matching
Bypass all audio path electrolytics with high grade polypropylene
Replace internal L/S cables with LC/OFC low resistance type
Fit premium grade gold plated operational amp sockets
Service selector switch and volume control
Pure copper noise nulling screen fitted to PSU caps
Precision re-bias
Check channel balance exceeds original specification
Realign volume control
Check regulators for noise and voltage accuracy, replace if needed
Replace PSU and supply bypass caps with high grade polypropylene
Pure copper noise nulling belly band screen fitted to mains transformer
Replace operational amps with selected premium grade types
Refurbish sockets, check for wear, replace if needed
Upload latest software specification
Realign power transformer
Soak test over 10 days
Computer recalibration to confirm that unit exceeds original specification
Log owner name, model and serial number in Musical Fidelity archives
Issue certificate signed by Antony Michaelson

Cost; £399 inc. VAT
In the UK we will pay freight to your house.
Overseas clients; all freight charges in both directions, customs clearance charges and duties at your cost.

E & OE

X-A1 Integrated amp upgrade schedule

Replace operational amps with selected premium grade types
Realign power transformer
Check channel balance exceeds original specification
Pure copper noise nulling belly band screen fitted to mains transformer
Check regulators for noise and voltage accuracy, replace if needed
Upload latest software specification
Customise output chokes for fine tuned matching
Replace decoupling caps with polycarbonate/polyester type
Refurbish sockets, check for wear, replace if needed
Replace PSU and supply bypass caps with high grade polypropylene
Service selector switch and volume control
Bypass all audio path electrolytics with high grade polypropylene
Fit premium grade gold plated operational amp sockets
Realign volume control
Adjust for minimum output DC offset
Replace internal L/S cables with LC/OFC low resistance type
Pure copper noise nulling screen fitted to PSU caps
Bypass PSU electrolytics with polycarbonate/polyester type
Check PSU caps ESR, replace if needed
Measure 4 output transistors for precision matching
Precision re-bias
Soak test over 10 days
Computer recalibration to confirm that unit exceeds original specification
Log owner name, model and serial number in Musical Fidelity archives
Issue certificate signed by Antony Michaelson

Cost; £399 inc. VAT
In the UK we will pay freight to your house.
Overseas clients; all freight charges in both directions, customs clearance charges and duties at your cost.

E & OE

X-A100R Integrated amp upgrade schedule

Check regulators for noise and voltage accuracy, replace if needed
Replace operational amps with selected premium grade types
Pure copper noise nulling belly band screen fitted to mains transformer
Measure 4 output transistors for precision matching
Service selector switch and volume control
Realign power transformer
Replace internal L/S cables with LC/OFC low resistance type
Customise output chokes for fine tuned matching
Adjust for minimum output DC offset
Bypass PSU electrolytics with polycarbonate/polyester type
Fit premium grade gold plated operational amp sockets
Bypass all audio path electrolytics with high grade polypropylene
Realign volume control
Check channel balance exceeds original specification
Replace decoupling caps with polycarbonate/polyester type
Pure copper noise nulling screen fitted to PSU caps
Refurbish sockets, check for wear, replace if needed
Replace PSU and supply bypass caps with high grade polypropylene
Upload latest software specification
Pure copper noise nulling screen fitted to motorized volume control
Check PSU caps ESR, replace if needed
Precision re-bias
Soak test over 10 days
Computer recalibration to confirm that unit exceeds original specification
Log owner name, model and serial number in Musical Fidelity archives
Issue certificate signed by Antony Michaelson

Cost; £399 inc. VAT
In the UK we will pay freight to your house.
Overseas clients; all freight charges in both directions, customs clearance charges and duties at your cost.

E & OE

X-A2 Integrated amp upgrade schedule

Adjust for minimum output DC offset
Fit premium grade gold plated operational amp sockets
Pure copper noise nulling screen fitted to PSU caps
Bypass PSU electrolytics with polycarbonate/polyester type
Service selector switch and volume control
Realign power transformer
Customise output chokes for fine tuned matching
Pure copper noise nulling belly band screen fitted to mains transformer
Replace operational amps with selected premium grade types
Replace PSU and supply bypass caps with high grade polypropylene
Bypass all audio path electrolytics with high grade polypropylene
Replace internal L/S cables with LC/OFC low resistance type
Check PSU caps ESR, replace if needed
Upload latest software specification
Check regulators for noise and voltage accuracy, replace if needed
Measure 4 output transistors for precision matching
Replace decoupling caps with polycarbonate/polyester type
Check PSU caps ESR, replace if needed
Refurbish sockets, check for wear, replace if needed
Realign volume control
Precision re-bias
Soak test over 10 days
Computer recalibration to confirm that unit exceeds original specification
Log owner name, model and serial number in Musical Fidelity archives
Issue certificate signed by Antony Michaelson

Cost; £399 inc. VAT
In the UK we will pay freight to your house.
Overseas clients; all freight charges in both directions, customs clearance charges and duties at your cost.

E & OE

X-A200R Integrated amp upgrade schedule

Upload latest software specification
Check PSU caps ESR, replace if needed
Realign volume control
Adjust for minimum output DC offset
Fit premium grade gold plated operational amp sockets
Customise output chokes for fine tuned matching
Pure copper noise nulling screen fitted to motorized volume control
Replace operational amps with selected premium grade types
Bypass PSU electrolytics with polycarbonate/polyester type
Pure copper noise nulling belly band screen fitted to mains transformer
Service selector switch and volume control
Check channel balance exceeds original specification
Replace internal L/S cables with LC/OFC low resistance type
Realign power transformer
Bypass all audio path electrolytics with high grade polypropylene
Refurbish sockets, check for wear, replace if needed
Replace decoupling caps with polycarbonate/polyester type
Pure copper noise nulling screen fitted to PSU caps
Check regulators for noise and voltage accuracy, replace if needed
Replace PSU and supply bypass caps with high grade polypropylene
Measure 4 output transistors for precision matching
Precision re-bias
Soak test over 10 days
Computer recalibration to confirm that unit exceeds original specification
Log owner name, model and serial number in Musical Fidelity archives
Issue certificate signed by Antony Michaelson

Cost; £399 inc. VAT
In the UK we will pay freight to your house.
Overseas clients; all freight charges in both directions, customs clearance charges and duties at your cost.

E & OE

X-T100 Integrated amp upgrade schedule

Check regulators for noise and voltage accuracy, replace if needed
Realign power transformer
Check PSU caps ESR, replace if needed
Replace internal L/S cables with LC/OFC low resistance type
Customise output chokes for fine tuned matching
Fit premium grade gold plated operational amp sockets
Refurbish connector leads and plugs
Pure copper noise nulling screen fitted to PSU caps
Bypass all audio path electrolytics with high grade polypropylene
Heater current, audio characteristics and transconductance matched
Measure 4 output transistors for precision matching
Refurbish sockets, check for wear, replace if needed
Precision re-bias
Service selector switch and volume control
Replace PSU and supply bypass with high grade polypropylene
Pure copper noise nulling belly band screen fitted to mains transformer
Adjust for minimum output DC offset
Pure copper noise nulling screen fitted to motorized volume control
Bypass PSU electrolytics with polycarbonate/polyester type
Realign volume control
Check channel balance exceeds original specification
Replace decoupling caps with polycarbonate/polyester type
Upload latest software specification
Replace operational amps with selected premium grade types
Soak test over 10 days
Computer recalibration to confirm that unit exceeds original specification
Log owner name, model and serial number in Musical Fidelity archives
Issue certificate signed by Antony Michaelson

Cost; £449 inc.VAT
In the UK we will pay freight to your house.
Overseas clients; all freight charges in both directions, customs clearance charges and duties at your cost.

E & OE