ARX ePre Microphone Preamplifier
Model ePre
Australian designed - I am not sure if they manufacture here though
www.arx.com.au
Designed as a high quality audio preamplifier, particularly useful for microphones, as part of a DAW (Digital Audio Workstation) setup.
It can be used as a physically standalone unit or fitted into a standard 5.25" drive slot
Supplied with the User Manual (an extract from the manual is showing in one of the photographs to make it clearer what this little beauty does)
Designed by audio engineers, not computer geeks - the emphasis of this equipment is on the provision of high quality sound
This is a studio quality microphone pre-amp using the same internal components as high end mixing consoles, built into a compact, computer friendly package.
It has controls for:
Input Gain - fully variable from 10dB through to 60dB to suit all types of microphones, plus switchable 48 V Phantom Power to enable condenser microphones to deliver their best.
A Contour control for EQ sweetening, providing fast, easy access to a whole range of useful EQ curves
Output level control - fully variable to match the e-Pre's output to the input of the sound card. From -10dB consumer cards through to +4dB for professional sound cards.
Multiple output connectors match up with any kind of sound card, including mini jacks, standard jack, RCA (phono) plugs, and even a connector to link to the internal CD ROM audio input of your sound card (if fitted).
Also fitted with a 12V DC input connector on the rear to enable the e-Pre to run from an external power supply if required.
I will also be supplying this power supply plug pack
e-Pre BENEFITS:
Professional Balanced XLR mic input
True 48v phantom power
Runs into the Line input of ANY sound card
High headroom = clean recordings
Smart EQ
Compatible with non-computer audio equipment
It should be noted that although the inputs are one channel (microphone or guitar pickup is common) the outputs are DUAL channel, meaning the same audio is split into two channel outputs which are available at the front panel 3.5mm socket or the 6.5mm socket OR on the rear via the 2x RCA sockets.
SPECIFICATIONS:
Input Impedance - Mic 2 K Ohms Balanced
XLR type Pin 1 Audio Ground, Pin 2 +, Pin 3-
Line 25 K Ohms Balanced
1/4" TRS jack Tip +, Ring , Sleeve Audio Ground
Phantom Power Voltage Switchable +48 V DC on XLR Pins 2 and 3
Max Input Level Mic +15 dB, Line +20 dB
Input Gain 10 dB Minimum, variable to 60 dB Maximum
Output Level -10 dB variable through 0 dB to +4 dB
Overload Indicator Measured at all Gain points throughout the circuitry
Output Noise -90 dB Unweighted, -97 dB 'A' weighted (Measured with Gain nominal 20 dB, Output level -10 dB)
Frequency Response 20 - 20 KHz ñ 0.25 dB
Distortion - 100 Hz 0.0085%; 1 KHz 0.008%; 10 KHz 0.0083% (Measured with Mic Gain 20 dB, Output 0 dB)
TESTING:
As this equipment has been in storage for the last couple of years, I have extensively tested it with the many microphones I have been finding new homes for (mainly condenser) and can confirm it is functioning perfectly.
The equipment is cosmetically, like new.
