Jeff Rowland Synergy preamplifier Owners manual

JEFF ROWLAND

DESIGN GROUP

Synergy

Stereo Preamplifier

Owner’s Manual

Introduction

W

elcome to the Jeff Rowland Design Group “family” and congratulations on your purchase of what is unquestionably

one of the world’s finest audio preamplifiers. þ With its combination of industrial grade active and passive devices,

precision electronic circuitry and accurately machined chassis components throughout, your Synergy Preamplifier will

offer you many years of musically satisfying enjoyment. þ Please take a few moments to read the remainder of this

Owner’s Manual. þ A thorough understanding of the operational features will allow you to gain the maximum

performance and ease of use for which this Preamplifier was designed. þ Please note that your Preamplifier must be

used with its companion Power Supply. þ The serial number of each component is located on the rear panel of each,

and also recorded below. þ The Preamplifier serial number begins with the letter S and the Power Supply serial

number begins with the letter R. þ Please include these numbers with any correspondence regarding your Coherence

Preamplifier. þ It has been my joy to create an audio component of enduring value which will reflect a higher ideal of

musical and artistic expression. þ It is my hope that these qualities will enrich your experience of ownership.

Enjoy the music!

Jeff Rowland

President

þ Jeff Rowland Design Group, Inc.

2911 North Prospect Street

Colorado Springs, CO 80907

Phone: [phone]

Fax: [phone]

Product Features

þ Five balanced XLR inputs per channel.

þ Balanced XLR main and record outputs.

þ One balanced XLR “bypass” input per channel for use in home theater

installations.

þ All inputs and outputs can be used with single-ended RCA terminated

interconnects by using XLR/RCA adapters (one male stereo pair and one
female stereo pair supplied).

þ Independent Listen and Record functions on each input permit

simultaneous listening and recording from any two selected inputs.

þ Each input can be individually adjusted for R/L balance, mono/stereo,

absolute phase, input impedance and gain, exclusively independent of
every other input. Individually adjusted input settings are automatically
memorized and recalled when returning to that input.

þ Six-function hand-held IR remote control with IR sensor/display unit

located in companion power supply for volume level indication.

þ Chassis and all chassis components precision machined from 6061

aluminum plate provide maximum mechanical resonance control.

þ All operational functions under microprocessor control. Within five

milliseconds of any function selected, the microprocessor reverts to a
non-clocking “sleep” mode which eliminates any possibility of digital
noise contamination.

þ Transformer-coupled inputs provide maximum immunity from RF

contamination and system ground loops and enhance compatibility with
a wide variety of interconnected components.

Power Supply Features

þ Separate power supply provides an isolated, stable, low noise DC

power source with integrated IR receiver circuitry and display for
indicating volume level.

þ Two separate power supply outputs for powering additional companion

units such as an optional phono equalizer.

þ Chassis and all chassis components precision machined from 6061

aluminum plate provide maximum mechanical resonance control.

Introduction / Product Features

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Contents

Initial Inspection

I

nspect the shipping container for damage. If the shipping container,
packing material, amplifier or accessories are damaged or missing, notify
your dealer and the shipper (if a claim is to be made). Note: Many shippers
require notification and an inspection within twenty-four (24) hours of
delivery to ascertain the nature of damages incurred.

Your Synergy Preamplifier has undergone extensive performance evaluations,
listening tests, quality control inspections and a minimum seventy-two (72)
hour burn-in period prior to shipment and should be in a perfect operational
condition upon receipt. If the Preamplifier does not operate correctly, please
notify your dealer immediately.

We strongly suggest that you save all packing materials. If the Preamplifier
is returned to your dealer or Jeff Rowland Design Group, the original
packing materials must be used for shipment. Neither Jeff Rowland Design
Group nor the shipper can be held responsible for damages incurred
during transit if the original factory packing is not used. All factory returns
require that a Return Authorization number be issued by Jeff Rowland
Design Group prior to shipment.

Contents

E

nsure that all of the auxiliary components listed below are enclosed
within the accessory box. Refer to the diagrams illustrated above and
verify the components included.

1 Handheld remote transmitter

2 One (1) warranty card (in some countries warranties are provided by

the respective importer)

3 Four (4) XLR/RCA adapters (one pair male input adapters and one

pair female output adapters)

4 AC power cable

5 Eight (8) compliant isolation interface supports

6 DC power cable

Initial Inspection / Contents