Shopping Cart
There are no more items in your cart
bloques info producto
Bank Transfer (3% OFF)
If you make the payment via bank transfer, you will receive an extra 3% discount on your order.
Need to upgrade your equipment?
Would you be interested in trading in a device when purchasing this item?
REGA Aethos. Integrated amplifier
The Aethos is a dual mono design using a custom-wound toroidal transformer and regulated supplies for the sensitive amplifier and exciter stages. The preamplifier stage uses discrete Class A circuitry throughout. The Aethos is a no-compromise product with a single 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.
INNOVATION IN DESIGN.
Our time, effort and money have been invested in circuit development and construction, using the highest specification of components throughout. As part of the design we have included useful features such as switchable direct input and preamp output, to allow the new Aethos amplifier to be used in a wide combination of systems. The headphone socket has been integrated in such a way that speaker switching is done via the output mute relay so as not to obstruct the signal path and degrade sound quality.
Rega has taken the design concepts underpinning the multi-award winning and hugely successful Elex-R and Elicit-R and pushed performance to the next level and beyond with a 125-watt dual mono design with features such as fully discrete FET-based line amplifier, polypropylene capacitors along the signal path, K-Power standby capacitors, power amplifier regulated supply and a high current output stage comprising four 160-watt per channel Sanken output transistors.
VOLUME CONTROL AND LINE AMPLIFIER TECHNOLOGY.
The Aethos uses a high-performance combined feedback and passive volume control, plus a line amplifier, which was originally developed for the Elex-R. Improvements have been made to the volume control and line amplifier stages in the Aethos with the use of discrete FET input operational amplifiers using LSK389 FET linear systems and the highly respected RK27 'Blue Velvet' potentiometer. The feedback and input levels are modified to suit the required volume level. The level and tracking between the two channels is adjusted by the close tolerance parts in the preamp circuit and less by the potentiometer itself, thus keeping channel mismatch due to the volume control tracking irregularities to a minimum, which further enhances the performance of the RK27 potentiometer. In addition to minimising tracking irregularities, this method also reduces noise and input overload, as the control will only 'use' the gain necessary to amplify the signal. This form of volume control is normally only found in professional broadcast environments where precise control of noise levels is required.
POWER AMPLIFIER TECHNOLOGY.
The power amplifier used in the Aethos is an upgraded, higher power version of the power amplifier used in the Elicit-R and Elex-R. The output amplifier used in the Aethos was born after extensive research by our engineers to develop a low source impedance emitter follower and Class A excitation stage. This is based on two complementary pairs of 160w Sanken Darlington output transistors. The technical and sonic improvement obtained by using low impedance drivers is well known, however, it can present high resistance currents in the driver stage when using standard transistor configurations. By combining the low-impedance driver with Sanken Darlington transistors (with their embedded thermal bias network operating at a lower steady state current), this combination forms a complementary emitter follower that emulates Class A conditions with good thermal stability and lower steady state currents in the driver stage. Due to the nature of the Rega power amplifier circuit, we can run two complete output stages in parallel, this includes the output transistors, the bias network and the pre-driver transistor, rather than paralleling just the output transistors as is normally found. This ensures that 125 watts of power is achieved with complete ease.
Technical specifications:
Power outputs with nominal supply voltage 230/115 V:
125 W RMS both channels driven at nominal 8 Ω load.
156 W RMS both channels driven at 6 Ω
Note: Continued high level use at 6 Ω may cause the enclosure to exceed 40 °C above ambient temperature and trigger 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 nominal input levels) 219 mV.
Record output impedance 560 Ω.
Preamplifier output:
Preamp output level (with nominal input levels) 840 mV.
Preamplifier output impedance 100 Ω.
Input sensitivities for nominal output level:
Input 1-5 and register input sensitivity 224 mV @ 17 kΩ.
Maximum input level 11.5 V (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 (point -0.8 dB) at 30 kHz (point -0.5 dB).
Direct input 10 Hz (point -0.8 dB) to 50 kHz (point -0.5 dB).
THD+Noise @ 100 W into 8 Ω:
Direct input (power amplifier only) Normally 0.007% at 1 kHz (measurement bandwidth 22 Hz to 30 kHz).
Line input Normally 0.007% @ 1kHz (measurement bandwidth 22Hz to 30KHz).
Power consumption Maximum output power: 415 W @ 230 V / 220 V / 115 V / 100 V at rated load 124 W RMS into 8 Ω
Fuses T3.15 AL 250 V - 230 V / 50 Hz and 220 V / 60 Hz.
T6.3 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.
Tap to zoom
