ARCAM: FMJ A49. 100 watts of Class-A sweetness

They say .....

Arcam of Cambridge deliver their first Mega-Amp, the A49, a High-End Glass-G Integrated Stereo Amplifier, built in their US factory to deliver serious Real World Power, Class-Leading Sound Quality and Incredible High-End Value.

The A49 delivers 400 to 800 watts of muscular finesse, balanced with 100 watts of Class-A sweetness, class leading detail retrieval and an ultra-low noise floor.

Big, hugely powerful, expensive, but incredible value in market context, the FMJ A49 is a stunning new Hi-Fi amplifier, designed with a 'money no object' build remit.

Arcam Founder John Dawson was given the task of building the best amplifier he could and he has produced one of the world's finest stereo amplifiers, one that can compete with markedly more expensive competitors.

After pilot production runs, full-scale deliveries are now starting for the UK market and most Arcam dealers have the A49 on demonstration. There is currently a waiting list for retail orders of approximately three weeks.

ARCAM ANNOUNCE THE FMJ A49 Mega CLASS-G Integrated Stereo Amplifier

The Arcam A49 uses Arcam's ultra-refined class G amplification, which allows the A49 to run in full class A for the first 100 watts and then switches into class AB for anything more that is required all the way up to 400 watts into 8Ω. To hear just what this delivers, try a piece of music you thought you knew and hear it as it should be heard.

A ‘real world’ statement product, made to be used and play music for the long-term

- redefines High-End music performance and value

- designed with a 'money no object' build remit

- compare to £5000+ competition

- matching C49 pre and P49 power amps to follow

- made in an Arcam Group Plant in Rochester, New York

The best and most powerful amplifier Arcam has ever made

- 200 watts per channel Class G constant power into 8 ohms - 400 watts into 4 ohms

- up to 50 watts per channel in Pure Class A

- massive toroidal transformer

- fully balanced operation throughout

- ultra-low distortion

- ultra-low noise-floor

- high performance MM/MC phono stages

The new amp uses extremely advanced circuit design, is built on a massive, robust chassis and is fully balanced throughout offering the lowest distortion, lowest noise-floor and the highest power ever, from an Arcam amplifier.

No matter what the speakers, no matter how large the room, with the A49's huge power reserves, it delivers staggering dynamics and massive volume when requires. Volume up to 11 🙂

A49 Circuit Board signed by Arcam Founder and A49 Designer John Dawson

Tech Background

With a class G amplifier, toroidal based power supply, acoustically damped chassis, paralleled transistor output stages and exceptionally low levels of distortion and noise the A49 is capable of reproducing music with all its original authority and detail.

The A49 features dual mono volume controls and a balanced signal path all the way though the amplifier together with distortion-nulling input multiplexers. During normal operation, distortion is measured in less than one part per million so that this massive power is deliver with total control and finesse.

There have been great strides made in improving audio sources and loudspeakers in recent years and the time is right to match them in the field of amplifier design. This ground breaking amplifier is a must audition amplifier for music lovers who understand that power is nothing without control.

Tech Specs

Continuous power output, per channel, 8Ω

-            Both channels driven, 8Ω,20Hz-20kHz, 0.2% THD - 200W

-            Single, 4Ω, at 1kHz - 400W

Inputs - Phono (MM) cartridge

-            Input sensitivity at 1kHz - 5mV

-            Input impedance - 47kΩ +100pF

-            Frequency response (ref. RIAA curve) - 20Hz-20kHz +/- 1dB

-            Signal/noise ratio (Awtd) 50W, ref. 5mV input - 80dB

-            Overload margin, 5mV at 1kHz - 20dB


-            Nominal sensitivity - 1V (RCA), 2V (XLR)

-            Input impedance - 10kΩ

-            Maximum input - 8V (RCA), 15V (XLR)

-            Frequency response 20Hz-20kHz +/- 0.05dB

-            Signal/noise ratio (Awtd) 50W, ref 1V/2V input - 105dB

Preamplifier output

-            Nominal output level - 1.15V (RCA), 2.3V (XLR)

-            Output impedance - 47Ω (RCA), 200Ω (XLR)

Headphones output

-            Maximum output level into 600Ω - 4Vrms

-            Output impedance - 1Ω

-            Load range - 16Ω-2kΩ


-            Power consumption (standby) - <0.5W

Dimensions & Weights

-            W x D (inc. speaker terminals) x H (inc. feet) - 433 x 425 x 171mm

-            Weight (net) - 19.7kg

-            Weight (packed) - 21.4kg

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