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Installation 

L

ocate the amplifier as close as possible to its final installation point.

Allow access to the rear panel for making connections.

The Concentra Integrated Amplifier is convection cooled, eliminating the
need for a fan or forced air cooling. When operating, the chassis should
have at least two inches of air space around the heat sink areas.

Supplied with your Concentra Integrated Amplifier are four compliant
interface supports which can be easily installed underneath the chassis
near the corners. This will help attenuate the transfer of spurious energy
from the supporting structure into the Amplifier chassis.

Rear Panel Power Connections

Important

:

Please strictly follow the steps in order as outlined below

before operating your Amplifier

1

Verify that the VOLTS 50/60 Hz INPUT identified on the rear panel

corresponds to the AC mains voltage of your service area.

2

Install the AC power cable between the amplifier and an active AC
mains outlet

Note: The Concentra Integrated Amplifier is designed to be powered from
AC mains at all times with no degradation of durability or service life. An AC
power switch for interrupting AC mains has not been provided. However, if
desired, the AC power cord can be plugged into a ‘switched’ AC mains
outlet or suitable device to facilitate AC mains switching in the interest of
energy conservation. Please note that the Concentra power consumption is
approximately 100 watts average. Depending on various operating
conditions during use, power consumption can increase up to 550 watts for
short periods.

Installation / Rear Panel Power Connections

Summary of Contents for Concentra

Page 1: ...JEFF ROWLAND D E S I G N G R O U P...

Page 2: ...Concentra Stereo Integrated Amplifier Owner s Manual...

Page 3: ...gh understanding of the operational features will allow you to gain the maximum performance and ease of use for which this Amplifier was designed Your Amplifier s serial number is located on the rear...

Page 4: ...al range volume control allows large volume level changes when knob is rotated abruptly yet permits precise small volume level changes when knob is rotated slowly Optional plug in phono cards installe...

Page 5: ...2 4 Contents 1 3...

Page 6: ...dealer immediately We strongly suggest that you save all packing materials If the Amplifier is returned to your dealer or Jeff Rowland Design Group the original packing materials must be used for shi...

Page 7: ...Front Panel Function Controls C O N C E N T R A SOURCE 1 2 3 4 5 6 TAPE MON MUTE VOLUME JEFF ROWLAND D E S I G N G R O U P A E B C D...

Page 8: ...TPUTS The lamp above the MUTE button illuminates Pressing the push button again restores the normal condition of the amplifier outputs The MUTE lamp is not illuminated Pressing and holding in the Mute...

Page 9: ...Signal Connections A E C C D D A B B E F G G H H I I...

Page 10: ...vides fully balanced volume controlled output to drive the additional amplifier This PRE OUT conforms to a Pin 1 ground Pin 2 negative Pin 3 positive standard Balanced output signals are always provid...

Page 11: ...Rear Panel Power Connections 2 1...

Page 12: ...in order as outlined below before operating your Amplifier 1 Verify that the VOLTS 50 60 Hz INPUT identified on the rear panel corresponds to the AC mains voltage of your service area 2 Install the AC...

Page 13: ...to 99 5 dB in increments of 0 5 dB The remote transmitter handset operates on a standard 9 volt battery available from a wide variety of sources This battery is accessed by removing the two Phillips...

Page 14: ...hm Common Mode Rejection Ratio Greater than 60 dB 20 Hz to 20 kHz Power Consumption 100 watts idle 550 watts maximum Inputs Balanced Line 3 per channel XLR Unbalanced Line 3 per channel RCA Record 1 p...

Page 15: ...If you have any additional questions regarding installation or operation please contact your authorized Jeff Rowland Design Group Dealer JEFF ROWLAND D E S I G N G R O U P...

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