Rega AETHOS Amplifier

Design Innovation:

The Aethos stereo amplifier is housed in a brand new custom designed case. Employing four 160 W 16 Amp output transistors per channel, this delivers 156 W per channel into 6 Ω. The Aethos is a dual mono design using a custom wound toroidal transformer and regulated supplies for the sensitive amplification and driver stages. The pre-amplifier stage uses class-A discrete circuitry throughout. The Aethos is a no compromise product with one goal, to deliver your music as faithfully as possible. The Aethos has been built to Rega’s high standards of reliability and quality to ensure many years of musical enjoyment.

Our time, effort & money have been spent on developing the circuit and construction, utilizing the highest specification of components throughout. As part of the design we have included useful features such as the switchable direct input and preamplifier output, to enable the new Aethos amplifier to be used in a wide combination of systems. The headphone socket has been integrated such that the speaker switching is performed by the output mute relay as so not to obstruct the signal path and degrade the sound quality.

Technical

Power outputs at rated 230/115 V supply voltage:
125 W RMS both channels driven into the rated load of 8 Ω
156 W RMS both channels driven into 6 Ω
Headphone output:
No load 12.5 V
32 Ω 2.7 V
54 Ω 4 V
300 Ω 9 V
Source impedance 109 Ω

Record output:
Record output level (with rated input levels) 219 mV
Record output impedance 560 Ω

Pre-amp output:
Pre-amp output level (with rated input levels) 840 mV
Pre-amp output impedance 100 Ω

Input sensitivities for rated output level:
Input 1-5 and record input sensitivity 224 mV @ 17 kΩ
Maximum input level 11.5 V (record output amplifier overload point)
Direct input sensitivity 840 mV @ 50 kΩ
Power amplifier gain 31.6 dB

Frequency response @ 100 W into 8 Ω:
Line input 1-5 and record 10 Hz (-0.8 dB point) to 30 kHz (-0.5 dB point)
Direct input 10 Hz (-0.8 dB point) to 50 kHz (-0.5 dB point)

THD+Noise @ 100 W into 8 Ω:
Direct input (Power amplifier only) Typically 0.007% @ 1kHz (measurement bandwidth 22 Hz to 30 kHz)

Line input Typically 0.007% @ 1kHz (measurement bandwidth 22Hz to 30KHz)
Power consumption Maximum output: 415 W @ 230 V / 220 V / 115 V / 100 V into the rated load of 124 W RMS into 8 Ω

Fuse ratings T5 AL 250 V – 230 V/ 50 Hz and 220 V / 60 Hz
T8 AL 250 V – 115 V / 60 Hz and 100 V 50/60 Hz

Dimensions W 433 mm x H 95 mm x D 360 mm (including speaker terminals)

Weight 17.5 kg