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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 Model 9T/Ti Amplifiers and power supplies are convection cooled,
eliminating the need for fan or forced air cooling. When operating, all chassis
should have at least two (2) inches of air space around the heatsink areas.
The chassis can be stacked vertically thus facilitating an upward flow of
warm air currents throughout the vertical heatsink fin areas. This upward
flow must not be impeded or recirculated around the chassis if proper
cooling is to be maintained.

Supplied with your Model 9T/Ti Amplifiers are two different support systems.
An assessment of the supporting structure should be made to determine the
proper system for the Amplifiers. Both spiked and compliant interface
supports can be easily installed within the indentations on each of the four
chassis pods located underneath the corners of each Amplifier and Power
Supply chassis. These system options permit the coupling or decoupling of
the Amplifier and Power Supply chassis to the supporting structure. 

As a general rule, most installations allow the Amplifier chassis to be rigidly
coupled to the supporting structure via the spiked coupling interface
supports. In carpeted installations, these supports provide excellent coupling
from the Amplifier chassis to the rigid supporting structure below. In
installations where the integrity of the supporting structure is poor, the
Amplifier chassis can be loosely coupled to the supporting structure via the
compliant isolation interface supports. This will help attenuate the transfer
of spurious energy from the supporting structure into the Amplifier chassis.

Another installation option permits the Power Supply chassis to provide
additional structural integrity and support for the Amplifier chassis. In this
configuration, the Power Supply chassis is rigidly coupled to the supporting
structure via the spiked coupling interface supports and the Amplifier is
placed directly above the Power Supply and isolated via the compliant
isolation interface supports. This installation procedure should be repeated
with the other channel.

If desired, a coin may be placed directly under the point of the spiked cou-
pling support to prevent damage to various surfaces (i.e. hardwood floors).

Rear Panel Power Connections

Important:

Please strictly follow the steps as outlined below, in order,

before operating your Model 9T/Ti Amplifiers. Failure to correctly follow
these procedures may result in damage to DC power connectors and/or
improper operation. Damage to DC power connectors is not covered
under warranty.

1

Verify that the POWER SUPPLY CIRCUIT BREAKER and the AMPLIFIER 
CIRCUIT BREAKER are in the OFF position (green color not visible).

2

Locate and install the DC power cable between the Amplifier POWER 
SUPPLY INPUT connector and the Power Supply POWER SUPPLY
OUTPUT connector. Note that this DC power cable must be connected
before the AC power cable is connected.

3

Wait thirty (30) seconds for any residual Amplifier capacitor charge to be 
dissipated.

4

Switch POWER SUPPLY CIRCUIT BREAKER to the ON position 
(green color visible).

5

Switch AMPLIFIER CIRCUIT BREAKER to the ON position
(green color visible).

6

Verify that the VOLTS AC INPUT identified on the Power Supply rear 
panel corresponds to the AC mains voltage of your service area.

7

Install the AC power cable between the Power Supply and an active AC 
mains outlet.

8

Repeat steps 1-7 for the other channel.

Note: If the Amplifier is moved to another location, first remove the AC
power cable from the AC mains wall outlet, then return both Amplifier and
Power Supply circuit breakers to their OFF positions and repeat the above
procedure when reconnecting. It is not recommended to use the POWER
SUPPLY CIRCUIT BREAKER to remove or connect AC mains power. Simply
disconnect the AC power cable from the AC mains outlet.

Installation / Rear Panel Power Connections

Summary of Contents for 9T

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

Page 2: ...Model 9T Ti Mono Power Amplifier Owner s Manual...

Page 3: ...nce and ease of use for which this Amplifier was designed Please note that your Model 9T Ti Monaural Amplifiers have different serial numbers on all chassis The Amplifier serial numbers begin with the...

Page 4: ...rned off during listening Optional remote wired or wireless power ON OFF switching Automatic temperature stabilizing circuitry maintains constant operating temperature Standby power condition reduces...

Page 5: ...1 2 3 5 6 Contents 4...

Page 6: ...nd 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 f...

Page 7: ...1 6 4 5 2 3 A Front Rear Panel Function Controls...

Page 8: ...h selects between two XLR connector standards in use worldwide The XLR standard of associated equipment should be noted and matched with the Model 9T Ti to achieve correct absolute phase The Amplifier...

Page 9: ...7 2 1 5 6 1 4 Rear Panel Power Connections...

Page 10: ...on the Power Supply chassis is rigidly coupled to the supporting structure via the spiked coupling interface supports and the Amplifier is placed directly above the Power Supply and isolated via the c...

Page 11: ...4 1 3 5 2 Signal Connections...

Page 12: ...a set can be used in loudspeaker bi wire configurations ALWAYS USE THE SUPPLIED SPEAKER TERMINAL HAND WRENCH WHEN CONNECTING OR DISCONNECTING LOUDSPEAKER CABLES DO NOT OVERTIGHTEN THESE TERMINALS WARN...

Page 13: ...ighty 80 hours before maximum performance can be expected Efficient break in procedures require the Amplifier to be fully operational playing music Continuous and noticeable performance improvements w...

Page 14: ...ion 100 watts standby 300 watts operating idle per channel 1200 watts maximum Inputs User selectable on rear panel Unbalanced 2 RCA connector Balanced 2 XLR connector Outputs 2 pair binding posts Dime...

Page 15: ...eturned to operational condition Cause Light bulb defective FRONT PANEL LAMP switch rear panel in OFF position Incorrect power connections or circuit breaker positions on Amplifier and or Power Supply...

Page 16: ...omponent s located too close to Power Supply Ground loop condition created between components in system Unstable conditions created by excessive capacitance in loudspeaker cables Remedy Reduce volume...

Page 17: ...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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