Loading...
JEFF ROWLAND
D E S I G N G R O U P
Model 9T/Ti
Mono Power Amplifier
Owner’s Manual
Introduction
Welcome to the Jeff Rowland Design Group “family” and congratulations on your purchase of what is unquestionably one of the world’s finest audio power amplifiers. ˛ With its combination of features such as numerous function control and interconnection possibilities, precision electronic circuitry and accurately machined chassis components throughout, your Model 9T/Ti Amplifiers will offer you many years of musically satisfying enjoyment. ˛ Please take a few moments to read the remainder of this Owner’s Manual. A thorough understanding of the operational features will allow you to gain the maximum performance 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 letter A; the Power Supply serial numbers begin with the letter P. These numbers are recorded below and are also located on the rear panel of each chassis. Please include these numbers with any correspondence regarding your Model 9T/Ti Amplifiers. ˛ It has been my joy to create an audio component of enduring value which will reflect a higher ideal of musical and artistic expression. It is my hope that these qualities will enrich your experience of ownership.
Enjoy the music!
Jeff Rowland
President
˛Jeff Rowland Design Group, Inc. 2911 North Prospect Street Colorado Springs, CO 80907 Phone: 719/473-1181
Fax: 719/633-4158
Product Features
˛Two parallel connected XLR Balanced Input jacks for balanced (Differential Mode™) system configurations
˛Two parallel connected RCA Input jacks for unbalanced (single-ended) system configurations
˛Two parallel connected speaker output connectors
˛User-selectable overall gain of 26 or 32 dB
˛User-selectable input impedance of 36k or 600 ohms for both balanced and unbalanced inputs.
˛User-selectable absolute phase on balanced input
˛User-selectable input muting
˛User-selectable switching between balanced and unbalanced inputs
˛Front panel standby/power button illumination can be turned off during listening
˛Optional remote (wired or wireless) power ON/OFF switching
˛Automatic temperature stabilizing circuitry maintains constant operating temperature
˛Standby power condition reduces warm-up time
˛Fail-safe operation provided by user-resetable AC and DC magnetic circuit breakers located on rear panel
˛Quiet, transient-free operation during power and function mode switching
˛Automatic input muting under anomalous input or output operating conditions
˛Balanced Differential Mode™ circuit topology implemented from input to output
˛Plug-in modules, containing critical electronic circuitry, enhance thermal stability, mechanical integrity and serviceability
˛Low-resonance, structurally integrated chassis of precision machined aluminum alloy components
Introduction / Product Features
Contents
5
1
6
2
3
4
Initial Inspection
Inspect 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 Model 9T/Ti Amplifier 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 Amplifier does not operate correctly, please notify your 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 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
Ensure that all of the auxiliary components listed below are enclosed within the four accessory boxes. Please note that an accessory box has been provided for each Amplifier chassis and companion Power Supply chassis for a total of four accessory boxes. Refer to the diagrams illustrated above and verify the components included.
1Sixteen (16) compliant isolation interface supports
2Two (2) AC power cables
3One (1) speaker terminal hand wrench (7/16 inch)
4Two (2) DC power cables
5Sixteen (16) spiked coupling interface supports
6One (1) warranty card (in some countries warranties are provided by the respective importer)
Initial Inspection / Contents
Loading...