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Icon Audio Stereo 40 MkIII 2A3 Integrated Valve Amplifier
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Icon Audio Stereo 40 MkIII 2A3 Integrated Valve Amplifier

£1,666.63 Exc. VAT |  






Icon Audio Stereo 40 MkIII 2A3 Integrated Valve Amplifier


Please Note Various upgrades are available across the range of Icon Audio Valve Products. Please call for details and prices.


For those seeking the ultimate in high definition and smoothness without high power the 2A3 is an ideal valve. The very special 2A3 is a pure triode valve very similar to the WE 300B (1937) but pre dating it by seven years. When designing an amplifier it is not just about using good components but getting the “synergy” right, so music does not sound mechanical or contrived.

17 Watts may not sound a lot, but with average efficiency speakers will fill a normal sized room with power to spare.

The 2A3 is relatively undemanding of the driver stages and power supply, and with valve costs at around half the price of the 300B, means that a true “High End amplifier can be produced for a reasonable price, without any compromise.

The basic chassis of Icon Audio's Stereo 40 series is exactly what they need using specially designed power and output transformers. Again the older, bigger 6SL7 and 6SN7 valves have the exact qualities needed and also benefit from being more rugged and longer lasting.  

The brand new design is finished with a fine metallic paint work that is easy to clean and is wear resistant. A 10 mm solid alloy front panel with polished dark chrome alloy knobs. And Icon Audio's attractive Plexiglas valve cover to create a stunning visual impression. On the scales at 25Kg, most of this weight is the higher than normal grade of iron they use. And the transformers are wound with 4N copper (99.9999% pure).



Specifications and Features

•  Comprehensive manual supplied
•  Full instructions for valve change included
•  All hand wired point to point
•  No printed circuit or tag board to ‘colour’ sound
•  Japanese Blue ALPS volume pot.
•  Class A, all Triode front end
•  Output circuit all pure Triode
•  4x 2A3 precisely matched for best performance
•  1x 6SL7 first stage valve, 2x 6SN7 phase splitter
•  274B valve rectifier for ‘Soft start’ and smooth sound
•  No global feedback used (integrated operation)
•  Standby switch to save valve life and power
•  2x 17 Watts RMS in Triode mode
•  Signal to noise level -90db
•  Freq response better than 20hz-20kHz ±1db
•  Power bandwidth 10hz-30khz -3db
•  Total harmonic distortion 0.10% at 10 watts
•  Suitable for 3 to 16ohm loudspeakers
•  Supplied with attractive safety guard.
•  Audiophile quality metal film resistors
•  Rubicon/Nichichron power caps.
•  Blue LED mains indicator
•  Valve rectifier
•  Choke regulated power supply
•  Audiophile quality polypropylene audio caps.
•  Silver PTFE audio cable
•  99.9999% pure copper
•  High grade transformer iron
•  Custom hand wound Tertiary output transformers
•  Ceramic valve holders for minimum noise/leakage
•  Centre tapped heater circuit for minimum hum
•  Gold plated Input & speaker terminals
•  Four line inputs – CD, Tape, Tuner, Aux
•  Tape monitor circuit with ‘Record Out’
•  250mv input sensitivity for full output.
•  230/240volts 76w SB, 140w Min, 240watts max.
•  1.6A AS rear fuse
•  CE, ROHSS and WEEE where applicable.
•  390mmW, 410D, 210H, 25kg (a minimum of 30mm






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