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With over 30 years of audiophile engineering experience, Arcam is one of the UK’s most respected audio companies. The new A38 stereo integrated amplifier is the latest in a long family line of award winning HiFi.
The A38 design team was given a simple goal; to develop the best performing stereo amplifier Arcam had ever produced. Although a huge task, the team dug deep into the basic structure of amplifier design and the result was a remarkable improvement in fidelity.
An in-house research project yielded a wealth of information concerning the influences of thermal conditions on power amplifier performance. As a result the A38 features a number of new technologies which practically eliminate thermal modulation of audio signals and ensure truly dynamic and enthralling reproduction. New Sanken output devices and dramatically improved thermal coupling provide an extremely stable device temperature resulting in much improved linearity.
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The massive torroid based power supply delivers effortless power with a new low noise topology improving transient response. A new pre-amplifier design, featuring hermetically sealed “reed” relays from Arcam’s range topping C31 pre-amplifier; deliver a wonderfully transparent signal to each power amplifier.
Reed relays offer extremely low contact resistance and virtually infinite life span. An all new volume control (Burr Brown PGA2320) gives unprecedented linearity and noise performance allowing fine details to be reproduced in startling clarity.
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Continuous power output (20Hz—20kHz at 0.5% THD), per channel
Both channels, 8Ω, 20Hz—20kHz 100W
Single channel, 8Ω, 20Hz—20kHz 150W
Both channels, 4Ω, 20Hz—20kHz 140W
Single channel, 4Ω, at 1kHz 200W
Harmonic distortion, 80% power, 8Ω at 1kHz 0.005%
Inputs
Phono input (optional module):
Input sensitivity 2.7mV (MM); 270μV (MC)
Input impedance 47k
Ω
(MM); 300
Ω
(MC)
Signal/noise ratio (CCIR) –79dB (MM); –73dB (MC)
Overload margin 35dB
Line and tape inputs:
Nominal sensitivity 250mV—2V 800mV (pre-amp. in)
Input impedance 10k
Ω
10k
Ω
THD+n (1kHz, 0dB signal, measured 20Hz to
20kHz unweighted)
–104dB –104dB
Power amplifier input
Nominal sensitivity 800mV
Input impedance 22k
Ω
Gain 31.5dB
Preamplifier output
Nominal output level 700mV
Maximum output level 2.6V RMS
Output impedance <50
Ω
Headphone output
Maximum output level into 600Ω 1.6V rms
Output impedance 4.7
Ω
General
Mains voltage 115V or 230V
Power consumption (maximum) 800VA
Power consumption (standby) 2VA
Dimensions W x D x H (including feet) 430 x 370 x 110mm
Weight (net) 9.3kg
Weight (packed) 12.2kg
Supplied accessories mains lead
CR90 remote control
4 x AAA batteries
mains lead