Emm labs Pre User manual

PRE STEREO PREAMPLIFIER OWNER’S MANUAL

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Version 1.0

ank you for choosing EMM Labs...

Welcome 002

PRE STEREO PREAMPLIFIER OWNER’S MANUAL

Warranty

Operational Features

Introduction

Main Screen & Button Functions

Front Panel 009

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Rear Panel

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Table Of Contents

Welcome 002

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Features & Specifications

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Menu Button Functions

Display Contrast and Brightness Settings

Volume Preset Settings

PRE STEREO PREAMPLIFIER OWNER’S MANUAL

Table of Contents 003

Safety Instructions 005

Volume & Signal Gain

Input Naming Menu

Reset All Settings

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Table Of Contents

PRE STEREO PREAMPLIFIER OWNER’S MANUAL

Operational Features (cont’d)

Menu Button Functions

Remove Assignments

PRE Factory Defaults

Input Assignment

Infrared Remote Control

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Safety Instructions

Prior to Installing your new EMM Labs product please read the following safety

instructions:

• Read and follow all instructions.

• Keep these instructions.

• Do not use or install product near any sources of water, rain and/or

moisture.

• Clean using only a dry cloth.

• Install only in accordance with the manufacturer’s instructions.

• Refer all servicing to approved service personnel.

• Do not install near any heat sources such as radiators, heat registers,

stoves, or other apparatus (including amplifiers) that produce heat.

• Do not install product outdoors or in direct sunlight.

• Leave at least 10cm or 4 inches around product to ensure proper

ventilation.

• Do not place product near strong electrical or magnetic

radiation/emissions or near a power amplifier.

This EMM Labs product must be connected to a mains socket outlet with a protective

earthing connection (grounding pin).

WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT

EXPOSE THIS APPARATUS TO WATER OR MOISTURE.

EEC: This product has been designed and tested to comply with the limits set out in

EN55013, EN55020 and EN 60065:2009 (electrical safety).

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PRE STEREO PREAMPLIFIER OWNER’S MANUAL

Warranty

EMM Labs warrants the PRE against defects in material and

workmanship under normal use and service for a period of time

specied by the product’s serial number from the date of purchase.

e warranty time period is 5 years. Warranty is limited to the

original owner and is non-transferable.

EMM Labs agrees to pay return shipping charges back to the owner

when the product is sent to EMM Labs within the rst 90 days aer

purchase (US and Canada end-users only). Otherwise, owner will be

responsible for all shipping charges to and from EMM Labs.

For all warranty claims, a copy of the original invoice must

accompany the product.

Opening the product or modifying it in any way by the owner,

including but not limited to cryogenic treatment, will void any

warranty.

Please contact EMM Labs ([email protected]) for RMA number

and shipping instructions before shipping any product to EMM Labs.

EMM Labs products are sold worldwide through authorized dealers

with restricted territories. EMM Labs products purchased from

non-authorized dealers or from a dealer selling outside his / her

authorized territory will automatically void product warranty.

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Introduction

Ed Meitner’s newly designed reference preamplier is a recognition that

the analog preamp is at the heart of every music system. is has motivated

Ed to consistently push the boundaries of preamplier design.

Built on the heritage of Ed’s famous PA6i Meitner preamp, and our

multi-award winning PRE2, the totally redesigned PRE is Ed’s

embodiment of this mission for perfection.

e culmination of Ed’s many decades of research and development, the

PRE is EMM Labs most sophisticated and transparent analog preamplier

to date.

e PRE STEREO PREAMPLIFIER features:

• 6 sets of stereo analog inputs

• 3 sets of stereo outputs

• 100% contactless, discrete, signal paths

• Clean Class-A power to drive cables and loads without degradation

• Proprietary soware-based analog volume control

• Exclusive aerospace-grade composite laminate circuit boards

• Newly designed intuitive control system featuring programmable

input naming, settings recall and many additional features

• Proprietary High-isolation resonant mode power supply for

silent, green operation

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Features & Specifications

Features & Specications

S/N ratio: 110dB (A-weighted)

THD: 1kHz <0.01%; 20kHz <0.01%

Frequency range: 0Hz-100kHz

Gain control range: Better than 70dB

Maximum input level: +18dBu (6.2V RMS)

System Gain: +6dB

Analog Inputs

• 3 Stereo sets of Balanced (XLR) - Input Impedance: 20kΩ

• 3 Stereo sets of Un-Balanced (RCA) - Input Impedance: 10kΩ

Analog Outputs

• 2 Stereo set of Balanced (XLR) - Output Impedance: 150Ω

• 1 Stereo set of Un-Balanced (RCA) - Output Impedance: 75Ω

System

• System control via serial RS-232

• Soware upgradeable

Power Supply

• Power factor corrected

• Factory set to 100V or 115V or 230V, 50/60Hz

• Power consumption: max. 40W

Dimensions W x D x H: 438 x 400 x 161mm, Weight: 17.2kg

PRE STEREO PREAMPLIFIER OWNER’S MANUAL

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Front Panel

PRE STEREO PREAMPLIFIER OWNER’S MANUAL

Front Panel & Functions

1. Standby/Power-Save button

Toggles the operation between on and power-save mode. In power save mode the

remote control and all front panel functions become inactive.

2. Display

3. Button Bar

Context sensitive function buttons.

4. Volume Control / Character Wheel

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Rear Panel

PRE STEREO PREAMPLIFIER OWNER’S MANUAL

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Rear Panel & Functions

1. System

• Remote RS232: RS232 control port

• USB: Soware update port

• RESET: Used to access the backup BIOS

2. Main Power Switch

3. Product VOLTAGE indicator

Indicates working voltage of the PRE. Only use with indicated line voltage.

4. Main Power Inlet connector

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Rear Panel

Rear Panel (cont’d)

5. Analog XLR Inputs (3 Sets of Stereo Balanced Inputs)

6. Analog RCA Inputs (3 Sets Un-Balanced/Single Ended)

7. Analog Outputs

• 2 sets of Stereo Analog Outputs XLR (Balanced)

• Stereo Analog Outputs RCA (Un-Balanced/Single Ended)

8. Product model and serial number indicator

Warranty void if model/serial number indicator is not attached to unit, missing,

or damaged whereby serial number cannot be seen.

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Operational Features

Main Screen and Button Functions

1. Mute Button

Press the “MUTE” button to toggle the mute

function.

Mute Function O Mute Function On

2. Units Button

Press the “UNITS” button to change the way the

volume is displayed. Volume can be displayed in

step mode or decibel (dB) mode.

Step Volume Display dB Volume Display

3. Menu Button Functions

• Display Contrast and Brightness Settings

• Volume Preset Settings

• Input Naming

• Remove Assignments

• Reset All Settings

PRE STEREO PREAMPLIFIER OWNER’S MANUAL

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Operational Features

Main Screen and Button Functions

4. Input Toggle/Assignment* Buttons

Select inputs using the input toggle buttons.

e system performs short fadeout/ fade-in

operation on signals being switched.

Please Note: e Mute is applied in the main

(common) signal path; input selection does not

aect the state of Mute.

*For input assignment function see page 15.

Menu Button Functions

1. Display Contrast and Brightness Settings

Use the right and le arrow buttons to adjust and

set the contrast or brightness settings. Press save

to save the settings.

2. Volume Preset Settings

Save three volume presets per input. Select a

volume setting using the volume knob or remote.

Assign to one of the three preset buttons, A, B or C

by pressing the indicated buttons. Recall the preset

using the A, B. or C preset button on the remote.

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Operational Features

Menu Button Functions (cont’d)

3. Input Naming

Customize the name of each input. Use the arrow

buttons “BkSP” (backspace) button and volume

knob (to select letters, characters and numbers).

Press the “Save” to save the name to the input.

4. Remove Assignments

Removes inputs assigned to the le and right input

toggle buttons.

5. Reset All Settings

Pressing the “RESET” button resets the PRE to

factory default settings. All saved volume presets

and named inputs will be cleared.

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Operational Features

Volume & Signal Gain

e volume knob adjusts the signal gain from full attenuation (--dB or 0 step) to maximum gain at +6 dB or step 100.

e maximum gain measured from any input to output is +6 dB. From the top of the control range, +6 dB or step 100, down to

-33 dB or step 22, a single step lowers the gain by 0.5dB. Aer -33 dB or step 22, the changes are progressively coarser. -60 dB is

step 1. e volume indicator on the main screen can be set to show the signal gain in decibels (dB) or volume steps.

Input Assignment

Press and hold the le or right input toggle buttons from

the main display to assign them to an input. is allows

quick access to your two most used inputs.

PRE Factory Defaults

• Selected input : Input 1 (XLR)

• Volume : -- dB or 0 step (all inputs)

• Volume Units : dB

• Mute : O

• Display Contrast/Brightness : Mid-point

• Input Names: : Input 1-6 -> XLR1, XLR2, XLR3, RCA1, RCA2, RCA3

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Infrared Remote Control

PRE STEREO PREAMPLIFIER OWNER’S MANUAL

Infrared Remote Control

VOL UNITS : is button toggles volume display units between steps and dB

DIM : is butons toggles through the 3 display states:

• DIM (dim the display)

• OFF (display o)

• FULL (back to the current default setting)

INPUT (1 to 6) : ese buttons can be used to directly access any INPUT.

SOFT MUTE : Toggles so mute function

MUTE : Toggles Mute function

A, B and C : A, B and C volume preset buttons.

VOLUME : Controls the volume/signal gain. Press the up arrow button to

increase volume/gain. Press the down arrow button to decrease

volume/gain

EMM Labs PRE User manual

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