REGA Atheos

  • £2,999.00
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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.

Time, effort & money have been spent on developing the circuit and construction, utilizing the highest specification of components throughout.

As part of the design they 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 so that the speaker switching is performed by the output mute relay so it doesn’t obstruct the signal path and degrade the sound quality.

Rega has taken the design concepts underpinning the multi award winning and hugely successful Elex-R and Elicit-R and propelled the performance to the next level and beyond with a 125watt dual mono design with features such as:

  • Fully discrete FET based line amplifier
  • Polypropylene capacitors throughout the signal path
  • K-Power reservoir capacitors
  • Power amplifier regulated supply
  • A high current output stage comprising of four 160w Sanken output transistors per channel


Technical Specification

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
Note: Continued high level use into 6 Ω may cause the case to exceed 40 °C above the ambient temperature and activate the thermal shutdown.

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

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