ARX PC-pre2 Owner'S Manual Download Page 1

To obtain warranty service for your 

PC-Pre

, call, write, or Email to ARX

or the dealer you purchased it from. They will give you the correct

address to send your unit to. Have your sales receipt showing date of

purchase handy, and include a copy of it with the unit. Please pack it up

well - we are not responsible for any damage caused by unsuitable packing

during shipment. Send the unit to us pre-paid, by a delivery service like

FedEx, UPS, DHL or any other service that can track the shipment. We

will return it to you freight paid. If you have any questions, or any part of

this is unclear, please write to ARX Systems in the country of purchase, or

to the address below.

PO Box 15,Moorabbin, Victoria 3189, Australia. Phone: +61 (0)3 9555

7859  Fax: +61 (0)3 9555 6747

You can Email the factory at:

 [email protected]

Page 7

Page 6

Page 4

Page 5

ARX Systems (ARX) warrants to the first purchaser of this 

PC-

pre

 product that it is free from defects in materials and workman-

ship under normal use and service. ARX’s sole obligation under this

warranty shall be to provide, without charge, parts and labour

necessary to remedy defects, if any, which appear within twelve

(12) months from date of purchase; and to supply parts only for

the life of the product to the original purchaser. ARX shall not be

responsible for parts that have been discontinued by the original

manufacturer

This is our only warranty. It does not cover finish or appearance

items, nor does it apply if the unit has been, in ARX’s sole judge-

ment:

• Subjected to misuse, abuse, negligence or accident;

• Repaired, worked on, or altered by persons not authorized by ARX,

• Connected, installed, adjusted or used otherwise than in accord-

ance with the instructions supplied by ARX.

This warranty gives you and us specific legal rights, and you may also

have other rights which can vary from state to state.

INTERNATIONAL LIFETIME WARRANTY

Starting Recording

1. Connect the microphone(s) to the 

PC-pre

. If they are condenser

mics needing Phantom power, press the phantom switch IN. If they

are dynamic mics, then don’t. If you are unsure of what type you

have, here’s the rule: 

If it works OK without Phantom power,

then it’s a dynamic microphone

2. Set the front panel Level controls initially at 0dB. If you know you

have a card which is set to +4dB, then turn the output control to

that setting. High end cards can have internal jumpers to set the

nominal level, so check your documentation.

3. Open up the Control Panel/Sounds and Audio Devices Properties in

Windows, (or similar utility on Macs) and check the settings on the

Audio Properties/Recording. Set the volume slider at around 75%

(¾ way to the Right) as a starting point.

4. Set the 

PC-pre 

Input Gain at 20 - 30 dB as a starting point, then

open up your audio software and start the RECORD process. Make

sure you can see the meters.

5. Try the traditional sound engineer’s “Check 1 - 2” into the

microphone, and watch (a) the levels on the screen, and (b) the

Overload LED on the front of the 

PC-pre

. If it lights up, reduce

the Input Gain. If the levels are too low on the screen, increase the

Input Gain slightly until the level improves. If the onscreen levels are

still too low, and the Input Gain is around 30-40+, increase the

Output level on the 

PC-pre 

until the level gets better. It’s a matter

of trial and error initially, until you are used to the interaction

between the 

PC-pre, 

sound card, and the audio software.

6. Different microphones will require different Input Gain settings, as

will singers with louder and softer voices, and louder and softer

instruments. It’s a good idea to create a page of different settings

that you can refer back to for speed.

7. You can use the jack input of the combo connector to plug a line

input (eg guitar) into the 

PC-pre

. You can either go in direct -

straight out of the guitar, or through any effects pedals you have.

Just be aware of the extra noise these devices can add, which may

require some subtle noise-gating once you have the track recorded.

8. Don’t worry about getting maximum level on to the hard disk. You

just need a good sounding clean signal that is loud enough, but not so

loud that you risk going into the red/overload state. See ‘About

Digital Recording’ below

 PC-Pre2 Specifications

Input Impedance

Mic 2K Ohms Balanced; XLR type Pin 1 Audio Ground, Pin 2 +, Pin 3–
Line 25 KOhms Balanced, ¼" TRS jack Tip +, Ring– Sleeve Ground

Phantom Power Voltage 

 +48 V DC on XLR Pins 2 and 3

Max Input Level

 Mic +15 dB, Line +20 dB

Input Gain 

6 dB Minimum, variable to 50 dB Maximum

Overload Indicator

 Measured at all Gain points throughout the

circuitry

Output Noise

 -90 dB Unweighted, -97 dB 'A' weighted

(Measured with Gain at nominal 20 dB)

Frequency Response

 20 - 20 KHz ± 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)

Output impedance

 150 ohms

Maximum output level

 +20dB 

Distortion Max 

0.1% prior to clipping

Output Connectors

Single Mono RCA with Channels A and B mix
Insulated 6.5mm jack with Channels A and B mix.

Wired Tip: +, Sleeve: Ground / Earth
Dual Insulated 6.5mm jacks

Wired Tip: +, Sleeve: Ground / Earth

Power Requirements

 12v Connection from computer or external

power supply

Size

 146mmW x 42mmH x 142mm D (5¼"W x 1¾H x 5"D)

Weight 

Under 1 Kilo (2.2 lbs)

About Digital Recording (a VERY short primer!)

If you’ve ever recorded on to a tape deck or cassette deck, you’ll be aware

that it’s usually OK to let the needles bounce into the red OCCASION-

ALLY. In fact, it often sounds bigger and fatter this way, thanks to the soft

analog tape distortion.

Digital recording is different. Once the level hits the red that’s TOO

MUCH. Digital audio has no analog type headroom. Maximum level is just

that - maximum, which means absolutely no more. Any attempt to go

over 0dB will result in a horrible crackling sound, which is probably not the

effect you’re looking for!

Your mission, Jim, is to get the cleanest, best sounding signal you can onto

the hard disk, and leave the audio massaging and sweetening to the mixing/

post-production process.

Most audio recording programs have extensive compression, limiting, EQ,

pitch control, tube-sound and other filters built in, so you can do and re-

do all this until you find the magical sound you’re looking for.

The ARX 

PC-pre

 is designed to be there when inspiration strikes, ready

and waiting in your computer to capture that magic.

Please Note

Although the PC Pre has been created for easy use with both Mac and

PC computers, it is also super easy to use as a front end for any other

recording or production system. As long as there is provision for line level

signals to be connected, the PC-pre will deliver superb audio

Reviews: