Radial Engineering ProMS2 Handleiding

Radial Engineering Splitter ProMS2

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True to the Music

Radial Engineering Ltd.

®True to the Music

USER GUIDE

Radial Engineering Ltd. ProMS2® Microphone Splitter ProMS2® Microphone Splitter

FEATURES

1. -30dB PAD: Allows balanced +4dB

line-level sources to connect to the

ProMS2 input.

2. Mic input: Used to connect a low

impedance, balanced, microphone or

direct box.

3. Direct-1 thru: A parallel direct

output used to bridge the mic or DI to

the primary mixing console.

4. Bookend design: 14 gauge steel

outer shell creates protective zone

around connectors and switches.

5. Full-bottom no-slip pad: This

provides electrical isolation and

plenty of ‘stay-put’ friction to keep the

ProMS2 in one place.

6. Direct-2 output: Equipped with

ground lift. Used to bridge the signal

to an additional audio device.

7. Lift (Direct-2): Disconnects

pin-1 (ground) on the direct-2 XLR

output to help reduce hum and buzz

caused by ground loops.

8. Isolated output: Transformer-

isolated to eliminate ground loop hum

and buzz. Used to bridge the balanced

mic signal to a second audio system.

9. Lift (Isolated output): Disconnects

pin-1 (ground) on the isolated XLR

output to help further reduce hum and

buzz caused by ground loops.

10. Stee l I -b e a m : E n c l os u r e

eliminates stress that could torque

the PC board.

11. Military-grade PCB: Double-

sided PCB with plated through-holes

is bolted to welded steel standoffs.

12. Eclipse: High performance mic

bridging transformer offers outstanding

a u d i o p erforma nc e . F e a t u r e s

mu-metal shield for protection against

stray electromagnetic ﬁ elds.

96 7 8

1 52 3 4

10 1211

RADIAL ENGINEERING 3 YEAR TRANSFERABLE LIMITED WARRANTY

RADIAL ENGINEERING LTD. (“Radial”) warrants this product to be free from defects in material and

workmanship and will remedy any such defects free of charge according to the terms of this warranty.

Radial will repair or replace (at its option) any defective component(s) of this product (excluding ﬁ nish and

wear and tear on components under normal use) for a period of three (3) years from the original date of

purchase. In the event that a particular product is no longer available, Radial reserves the right to replace

the product with a similar product of equal or greater value. In the unlikely event that a defect is uncovered,

please call 604-942-1001 or email service@radialeng.com to obtain an RA number (Return Authorization

number) before the 3 year warranty period expires. The product must be returned prepaid in the original

shipping container (or equivalent) to Radial or to an authorized Radial repair center and you must assume

the risk of loss or damage. A copy of the original invoice showing date of purchase and the dealer name

must accompany any request for work to be performed under this limited and transferable warranty. This

warranty shall not apply if the product has been damaged due to abuse, misuse, misapplication, accident

or as a result of service or modiﬁ cation by any other than an authorized Radial repair center.

THERE ARE NO EXPRESSED WARRANTIES OTHER THAN THOSE ON THE FACE HEREOF AND

DESCRIBED ABOVE. NO WARRANTIES WHETHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT

LIMITED TO, ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR

PURPOSE SHALL EXTEND BEYOND THE RESPECTIVE WARRANTY PERIOD DESCRIBED ABOVE OF

THREE YEARS. RADIAL SHALL NOT BE RESPONSIBLE OR LIABLE FOR ANY SPECIAL, INCIDENTAL

OR CONSEQUENTIAL DAMAGES OR LOSS ARISING FROM THE USE OF THIS PRODUCT. THIS WAR-

RANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS, WHICH

MAY VARY DEPENDING ON WHERE YOU LIVE AND WHERE THE PRODUCT WAS PURCHASED.

Speciﬁ cations and appearance are subject to change without notice.

Radial Engineering Ltd.

1588 Kebet Way, Port Coquitlam BC V3C 5M5

tel: 604-942-1001 • fax: 604-942-1010

info@radialeng.com • www.radialeng.com

Audio circuit type: Passive mic splitter, transformer based

Number of channels: Three-way splitter (one in/three out)

Frequency response: 20Hz ~ 20KHz

Dynamic range: 140dB

Maximum input: +25dBu @ 1kHz

Harmonic distortion: 0.005% @ 1kHz

Phase deviation: 1° @ 100Hz; 4° @ 20Hz

CMRR: 114dB @ 60Hz

Input impedance: 150 Ohms, balanced

Output impedance: 150 Ohms, balanced

XLR output: AES standard pin-1 Ground, pin-2 (+), pin-3 (-)

Ground lift: Lifts pin-1 on the XLR output

ProMS2 SPECIFICATIONS

Thank you and congratulations on your purchase of the Radial ProMS2 mic

splitter. This simple yet extremely handy device will likely ﬁ nd its way into all

types of applications such as splitting mic signals and distributing signals

throughout your audio system.

We have purposely written this manual to be short, as most users will likely

be familiar with the ProMS2’s microphone splitting applications. We do sug-

gest that you take a moment to read through this document to familiarize

yourself with the features that are built in. For more detailed information,

please visit the FAQ section on the Radial website. This is also where we

post questions and answers that come from users after the product is re-

leased. If you do not ﬁ nd an answer, we invite you to send us an email at

info@radialeng.com and we will do our best to answer your query in short

order.

Introduction

The ProMS2 is a balanced microphone splitter that distributes the mic signal

and sends it to three outputs. Splitting microphone signals is most common

in sound reinforcement when the on-stage microphones must feed two mix-

ing consoles such as a house PA and a monitor console. Other applications

include splitting a mic signal in the studio to feed more than one preamp or

splitting the signal to feed a live broadcast or recording truck.

Live: to house, monitor and recording mixers.Studio: splitting a mic to feed two preamps.

Signal Flow

Following the block diagram below, the ProMS2 ﬁ rst routes the input to a

-30dB attenuator PAD that allows the ProMS2 to be used with line-level

sources. Next, the signal is divided three ways between the DIRECT-1 thru-

put, DIRECT-2 output with ground lift and transformer ISOLATED output

(also with ground lift).

+48V PHANTOM

MICROPHONE ISOLATED OUT

DIRECT OUT-2DIRECT OUT-1

The DIRECT-1 output is a parallel thru-put that allows 48V phantom power

from the mixing console to feed back to a condenser mic or active direct box.

The DIRECT-2 output is identical to the DIRECT-1 thru-put, except that it is

equipped with a separate ground LIFT switch to help reduce ground loop noise.

The DIRECT-2 output can be used to send a balanced, mic-level signal to an

alternate device such as a recording system.

The ISOLATED output is used to feed a second mixing console and employs

a high performance Eclipse mic bridging transformer to eliminate the hum and

buzz caused by ground loops. Ground loops are commonly encountered when

connecting two audio systems together and can be heard as hum or buzz in the

audio system. The ISOLATED output breaks the ground loop between equipment

and allows a second system to operate without noise.

Connecting the ProMS2

Before connecting the ProMS2 make sure the sound system is turned off and

all levels are set to zero. This will avoid any connection transients that could

cause damage to speakers. Conﬁ rm that the PAD and LIFT buttons are set to

their outward position. The ProMS2 is completely passive and does not require

a power supply to work.

Using balanced XLR cables, connect the output of a microphone or direct box

to the ProMS2 INPUT. Next, connect the DIRECT-1 output to your primary mix-

ing console. If you are using a condenser microphone or active direct box, turn

on the phantom power. It’s important to note that the mixing console supplying

+48V phantom power must be connected to the DIRECT-1 thru-put XLR jack.

The other outputs, DIRECT-2 and ISOLATED, should not be used to pass phan-

tom power back to the mic or direct box.

Turn on your audio system and test the signal at a low volume to ensure the

ProMS2 is properly connected and the microphone is working. After the primary

mixing console is working, connect the ISOLATED output to your second mix-

ing console such as a monitor or recording system. Test the second system to

ensure all is working well.

The ISOLATED output is equipped with a ground LIFT switch that decouples the

signal ground. If you hear hum or buzz after connecting the ISOLATED output

depress the LIFT switch to eliminate the noise.

The DIRECT-1 output connects to the mixer that will supply phantom power to condenser mics and ac-

tive DI’s. The ISOLATED output connects to your second audio system and prevents ground loop noise

between systems

+48V PHANTOM

PRIMARY SYSTEM SECOND SYSTEM

ISOLATEDDIRECT-1

J-RAK 8

The optional J-RAK 8 is a 19” rack chassis that lets you mount up to eight

Radial devices in a neat 2RU rackmount package. The DI’s and splitters

can be mounted with either the input side or output side facing the front.

Ideal for creating high-density groups of direct boxes and mic splitters for

the studio or live touring.

J-RAK 4

The optional J-RAK 4 is a 19” rackmount chassis that lets you package

four Radial devices in one rack space (1RU). Like the J-RAK 8, the DI’s

and splitters can be mounted with either the input side or output side facing

the front.

J-CLAMP

The optional J-CLAMP lets you

mount a single Radial device to

virtually any surface. It’s perfect for

hiding away a mic splitter or direct

box in a rack or podium or under

a table.

Radial Engineering Ltd.Radial Engineering Ltd. Radial Engineering Ltd.ProMS2® Microphone Splitter ProMS2® Microphone Splitter ProMS2® Microphone Splitter

Using the Direct-2 output