Page 2
2 Final Inspection - Your Guarantee of Quality
To assure you of optimum performance and reliability, this amplifier has passed our rigorous
final inspection and listening test by the Icon Audio team in Leicester. During which the final set
up and adjustments were made.
Date
…./…./….
Model
ST40 MK IV
Amp Serial Number
……….
Customer
……………………………
Check amplifier finish
……….
Check valve cover
……….
Internal wiring check
……….
Check Triode mode
……….
Run min 6 hour test
……….
Check inputs & tape monitor
……….
Output Valve Bias level
……mv
Sound Quality
……….
Channel Balance
……….
Valve Microphony
……….
Screwdriver included
……….
Hum level left/right
...../…..mv
RF Test
……….
Meter brightness
……….
Serial No sticker and recorded
……….
Mains voltage
117V / 230-240V
IEC Mains Fuse
1.6
A…….
UK Plug fuse
3A..
…A
Remote Control Function
……….
Headphone socket
……….
Bottom label
……….
Transformer Protection
……….
Upgrades:
Output valves
……....……….
1
st
Stage valve
……………….
Phase splitter valve
……………….
Mains lead
……….
Signed off by
……………………….
Notes:
