Celsus Pre Amplifier



The Celsus Pre Amplifier incorporates our knowledge and technology from our Reference Pre Amplifier into a more affordable package.
A cursory glance at the Celsus and you can see the same attributes and features have been passed down from our Reference Pre.
Our cascading design approach means many design features and components from the Reference have been utilised to good effect.

The Celsus Pre Amplifier is a fully balanced design to faithfully preserve and protect the delicate signal that is transmitted.
Every input and output are optionally XLR or RCA, especially the phono input so the benefits of the phono cartridges balanced output can be realised.

With the amplifier topology being fully balanced we incorporated the award winning Pulsare II phonostage, with its exceptional low noise and distortion.
The convenient front panel controls operating relays for every adjustment mean the precious signal never leaves the main circuit board.
This offers quick adjustability and the option that two cartridges can be connected simultaneously, it's ideal for those with stereo and mono cartridges.

Mono can also be selected, catering for the growing interest in this playback style, helping to reduce distracting background noise.
A Subsonic filter reduces unwanted low frequency signal passing to the power amplifier due to warped records.
Added to this there are effectively four-line level inputs, 2x XLR and 2x RCA to cater for additional sources.
Two sets of main outputs allow mono or stereo-amplifiers to be powered in either balanced or single ended configuration.

The external power supply with its large 500VA mains transformer and dual capacitor reserve gives the sound impressive dynamics and control.
Within the Celsus we have retained our own wound film capacitors with polypropylene dielectric developed for the Reference.

With an obsession for perfection in the power supply and main circuit we did not want to limit the performance using a poor volume control.
There is no ‘performance-limiting’ remote control motor with its field effects and digital circuits to crush the peaks and highs of sound.
Using the exact same ALPS RK50, "King" of volume controls from the Reference Pre, the reward is a breath-taking perception of realism.

The Celsus Pre Amplifier can open the door to exploring the detail and realism a music collection holds.
Music can be an addictive drug and the Celsus Pre Amplifier will have you hooked into the early hours every day.




Specifications


FRONT PANEL CONTROLS

: ALPS RK 50 4 Gang Manual Volume Control

: Selector Switch

: Mute Switch

: Mono Switch

: Subsonic Filter

: Gain Selector

: Resistance Selector

: Capacitance Selector

INPUTS

PHONO

: 2x XLR      2x RCA

Gain

: 48dB – 60dB – 70dB

Input resistance

: 100R – 300R - 500R – 1K – 5K – 10K – 47K

Input capacitance

: 100pF – 200pF – 500pF

Distortion

: Less than 0.001%

RIAA Accuracy

: 5Hz - 70kHz +/-0.5dB (Neumann HF correction)

Noise (A weighted)

: MM –81dB       MC –67dB (high setting)

Channel separation

: < -85dB 5Hz – 20KHz

LINE

: 4x XLR      4x RCA

Nominal sensitivity

: 340mV Volume Full 100W XLR

Input resistance

: 33 kOhms  XLR      82 kOhms   RCA

Maximum input

: 11 Vrms XLR

Frequency response

: 5Hz—over 80kHz ± 1dB

Signal/noise ratio

: 100 dB - XLR/RCA (Awtd) 50 W, ref. 1V input

OUTPUTS

Pre-amplifier output

: 2x XLR      2x RCA

Nominal output level

: 11 V

Output impedance

: 47 Ohms

POWER CONSUMPTION

Power supply

: Independant 500va transformer

: 150,000uF Capacitor reserve

Input voltage (region dependent)

: 115V or 230V AC

Power Consumption (Max)

: TBC Watts No Signal Idle

Mains input Socket

: IEC C14 Type

Mains input Cable

: IEC C13 Type

DIMENSIONS AND WEIGHTS

Dimensions

: Control unit   - 469 x 484 x 196mm    PSU   - 469 x 458 x 129mm (WxDxH)

Net weight

: Control unit   - 16Kg (35lb)                 PSU   - 17Kg (38lb)

Packaging

: 590 x 550 x 370mm (WxDxH)

Shipping weight

: TBC Kg (TBC lb)

AVID reserves the right to improve or change its products without notice at any time.