Fine Tuning - DACs

*** Please Note: Our Fine Tuning Service is only available to UK based customers ***

A324 DAC | KW DM25 DAC | Tri-Vista 21 Choke Regulated DAC | X-DACv8

A324 DAC upgrade schedule

Upload latest operational software
Realign power transformer
Check channel balance
Replace operational amplifiers with premium grade types
Check PSU caps ESR, replace if needed
Improve analogue supply decoupling
Pure copper noise nulling belly band fitted to mains transformer
Fit premium grade gold plated operational amplifier sockets
Check all clocking signals for low jitter
Heater current, audio characteristics, and transconductance matched
Refurbish sockets, check for wear, replace if needed
Bypass PSU caps with low ESR polypropylene
Check channel balance exceeds original specification
Replace power supply bypass caps with low ESR premium grade polyester/polypropylene
Pure copper noise nulling band around psu caps
Check linearity at low levels
Fine tune intermediate wiring
Bypass all audio path electrolytics with premium grade polypropylene types
Fit new precision clock PCB
Check regulators for noise and voltage accuracy, replace if needed
Soak test over 10 days
Computer recalibration as new product
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

kW DM25 DAC upgrade schedule

Check all clocking signals for low jitter
Heater current, audio characteristics, and transconductance matched
Refurbish sockets, check for wear, replace if needed
Improve analogue supply decoupling
Bypass PSU caps with low ESR polypropylene
Check channel balance exceeds original specification
Replace power supply bypass caps with low ESR premium grade polyester/polypropylene
Check PSU caps ESR, replace if needed
Pure copper noise nulling band around psu caps
Replace operational amplifiers with premium grade types
Check linearity at low levels
Upload latest operational software
Fine tune intermediate wiring
Check channel balance
Bypass all audio path electrolytics with premium grade polypropylene types
Check regulators for noise and voltage accuracy, replace if needed
Fit new precision clock PCB
Realign power transformer
Pure copper noise nulling belly band fitted to mains transformer
Fit premium grade gold plated operational amplifier sockets
Soak test over 10 days
Computer recalibration as new product
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 21 choke regulated DAC upgrade schedule

Improve analogue supply decoupling
Bypass all audio path electrolytics with premium grade polypropylene types
Fine tune intermediate wiring
Check PSU caps ESR, replace if needed
Pure copper noise nulling belly band fitted to mains transformer
Replace operational amplifiers with premium grade types
Fit premium grade gold plated operational amplifier sockets
Check all clocking signals for low jitter
Replace power supply bypass caps with low ESR premium grade polyester/polypropylene
Heater current, audio characteristics, and transconductance matched
Check regulators for noise and voltage accuracy, replace if needed
Refurbish sockets, check for wear, replace if needed
Bypass PSU caps with low ESR polypropylene
Check channel balance exceeds original specification
Realign power transformer
Check channel balance
Upload latest operational software
Pure copper noise nulling band around psu caps
Check linearity at low levels
Fit new precision clock PCB
Soak test over 10 days
Computer recalibration as new product
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-DACV8 upgrade schedule

Check regulators for noise and voltage accuracy, replace if needed
Fit new precision clock PCB
Fine tune intermediate wiring
Realign power transformer
Check linearity at low levels
Check channel balance
Pure copper noise nulling band around psu caps
Bypass PSU caps with low ESR polypropylene
Refurbish sockets, check for wear, replace if needed
Upload latest operational software
Replace operational amplifiers with premium grade types
Check PSU caps ESR, replace if needed
Improve analogue supply decoupling
Pure copper noise nulling belly band fitted to mains transformer
Fit premium grade gold plated operational amplifier sockets
Check all clocking signals for low jitter
Heater current, audio characteristics, and transconductance matched
Check channel balance exceeds original specification
Replace power supply bypass caps with low ESR premium grade polyester/polypropylene
Bypass all audio path electrolytics with premium grade polypropylene types
Soak test over 10 days
Computer recalibration as new product
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