Elysian Pre-amplifier

“The CAAS trio is one of the most musically engaging and resolving amplification systems around. As a combo it is unusually even handed, revealing oodles of detail in a highly coherent fashion.” – HiFi+ Magazine

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Elysian Pre-amplifier

Elysian Pre-amplifier

The Elysian Pre-amplifier (EPre) is a reference standard fully balanced pre-amplifier designed to produce the highest audio playback quality possible.

The EPre is machined from a single piece of high grade aluminium, incorporating a dual monaural, true zero feedback pre-amplifier with dedicated transformers and power supplies for the left channel, right channel and digital sections.

True Zero Feedback "TZFB"

The EPre incorporates CAAS Audio’s bespoke parallel, ultra linear, ZERO feedback, JFET Class A buffer stage designed to reduce THD, IMD and TIM while providing the cable and load drive capability that passive pre-amps can not.

True Zero Feedback "TZFB"
Switched Resistor Volume Control "SRVC"

Switched Resistor Volume Control "SRVC"

The EPre incorporates a fully balanced remote controllable, computer controlled, relay switched volume control. The circuit consist of a bank of high quality silver contact relays which switch different configurations of high precision, high quality metal film resistors to produce attenuation levels between -64dB and 0dB in 128 discrete steps of 0.5dB. Although this is a vastly more complex system than the standard audio potentiometer, the sonic purity achieved far exceeds that of any potentiometer on the market.

Switched Amplifier Modules "SAM"

The EPre houses six (three per channel) separate zero feedback, class A operating (with zero switching distortion), DC coupled amplifier modules. This unique topology allows selection of the correct amplifier module and allows the EPre to configure the most direct and purest signal path possible for any input / output configuration.

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Switched Amplifier Modules "SAM"
Outline Specification

Outline Specification

– Gain: +6dB to -64dB & Mute (in 0.5dB steps).
– Freq Response: 0.3Hz to >200kHz (-3dB) DC Coupled.
– Input Impedance: 33 kohms.
– Output Impedance: 60 ohms.
– THD: < 0.01% @1kHz (0dB level, 2V RMS).
– Inputs: 2 x L/R Pair RCA, 3 x L/R Pair XLR.
– Outputs: 1 x L/R Pair RCA, 1 x L/R Pair XLR.

Detailed Specification (PDF)

Unique Technology

“RWave” – Ultra wide bandwidth circuit topology.
“CSD” – Open loop, JFET drive topology.
“TZFB” – True zero feedback design (NO global feedback, NO local feedback).
“NIDS” – Non-Intrusive DC Servo system.
“Fastpower” – 12 bespoke, discrete analogue regulated supplies and 7 digital regulated power supplies.
“SAM” – Switched Amplifier Modules.
“SRVC” – 128 step relay switched resistor volume.
-DC coupled from input to output (NO capacitors).
– Triple transformer supplies for circuit isolation.

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Unique Technology
Custom Anodized Finishes

Custom Anodized Finishes

The EPre is available in either an elegant silver or black anodized finish and features a beautifully sculptured, high quality, 5 axis CNC machined, aluminium chassis that has been milled from a single billet of high quality aluminium.

User Manual (pdf)

Reviews

“The CAAS trio is one of the most musically engaging and resolving amplification systems around. As a combo it is unusually even handed, revealing oodles of detail in a highly coherent fashion.”

“Excellent separation of voices and instruments, which makes it easy to hear right into the production, while an apparent absence of overhang or ringing means that timing is nigh on perfect.”

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“The CAAS equipment operates on a musical level well above that of their price and thus represent an immensely enticing alternative to more established brands”

“In terms of dynamics, joy of playing and audio transparency there were no wishes unfulfilled”

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