OW N E R ’ S M A N UA L MODEL 501 MONO AMPLIFIER
INTRODUCTION OW N E R ’ S M A N UA L MODEL 501 MONO AMPLIFIER Welcome to the Jeff Rowland Design Group “family” and congratulations on your purchase of what is unquestionably one of the world’s finest amplifiers. With its combination of features such as precision electronic circuitry, exceptional efficiency, and accurately machined chassis components throughout, your Model 501 Mono Amplifier will offer you many years of musically satisfying enjoyment.
P R O D U C T F E AT U R E S OW N E R ’ S M A N UA L MODEL 501 MONO AMPLIFIER • L syst r ut 3 t3r 3r 3 fi ur t 3 s. ut r t r st s sur w t r L 3r CA t uts r us . • r s 3r r 3u ut r3v s u v rs 3 t ty w t 3t r 3 3 ts t s r3u 33 3 s EMI. •H fi y ICE 3w r 3w r 3 v rs 3 t 33 y r t s 3ut ut 3w r w t v ry tt t, r3 3t s 3 3 3 t r ts r t v y s ys sz . © J e f f R o w l a n d D e s i g n Gr o u p 2 0 07. A l l R i g h t s R e s e r v e d .
PAC K AG E C O N T E N T S OW N E R ’ S M A N UA L MODEL 501 MONO AMPLIFIER Ensure that all of the auxiliary components listed below are enclosed within the shipping carton and accessory box. Refer to the illustrations and verify that the proper components are included. WARRANTY REGISTRATION MODEL 501 MONO AMPLIFIER 4 AC POWER CABLE P O B OX 7 2 3 1 , C O LO R A D O S P R I N G S , C O LO R A D O 8 0 9 3 3 U S A WARRANTY CARD E - m ail : j rdg @ j e f f ro w land . co m WWW. J E FF R O W L A N D .
INITIAL INSPECTION OW N E R ’ S M A N UA L MODEL 501 MONO AMPLIFIER Inspect the shipping container for damage. If any portion of 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) immediately. NOTE: M y s rs r qu r 3t fi t 3 s t3 wt 24 3urs 3 v ry t3 t r t tur 3 s urr .
Maintenance & Cleaning OW N E R ’ S M A N UA L MODEL 501 MONO AMPLIFIER All JRDG products are designed to provide a lifetime of enjoyment and listening pleasure. The Model 501 Mono Amplifier is uniquely constructed from a solid block of precision-machined aluminum. It’s chassis is sealed to prevent dust from entering the interior of the chassis and thus should never need interior cleaning during the lifetime of the product.
If you have any questions about the care or cleaning of your Model 501 Mono Amplifier, please contact your dealer or the JRDG factory before attempting to clean the chassis. The use of a cleanser or abrasive to clean the chassis that has not been approved by the factory will almost certainly damage the finish and will not be covered under warranty. NOTE: C r/ 3 s s 3u r t y t3 t 3t 3t t © J e f f R o w l a n d D e s i g n Gr o u p 2 0 07. A l l R i g h t s R e s e r v e d . ss s.
I n s ta l l at i o n , U s e & c a r e OW N E R ’ S M A N UA L MODEL 501 MONO AMPLIFIER Locate the amplifier as close as possible to its final installation point. Allow access to the rear panel for making connections. Due to it’s design, the Model 501 Mono Amplifier is energy efficient, eliminating the need for heatsinks or forced-air cooling. As a result, the Model 501 Mono Amplifier can be housed in a cabinet or custom enclosure with no fear of overheating.
The JRDG Model 501 Mono Amplifier has been designed to operate at the highest level of efficiency and performance in any normal operating situation; however, there are a few important use and care principles that must be kept in mind when operating the amplifier. • D3 3t x 3s t fi r t3 r , 3 stur , 3r x ss v y 3 t 3 s. •M • sur t t t v3 t 3 t s 3 t t st s v3 t y3ur r . M3 501 M3 3 A fi r ust 3t 3 fi y w y, 3t r t 3r t3 3 fi s rv u t s r3 J DG. t rw s , t t3ry w rr ty w t y v3 .
Signal & power connections OW N E R ’ S M A N UA L MODEL 501 MONO AMPLIFIER The Model 501 Mono Amplifier offers unprecedented compatibility with associated audio and A/V components. When connecting or disconnecting speaker or interconnect cables, the amplifier Master AC Power Switch (5) should be turned OFF. (2) BALANCED SIGNAL INPUT: If you are using balanced XLR interconnects from your source components, they should be connected to the balanced input connector.
Signal & power connections OW N E R ’ S M A N UA L MODEL 501 MONO AMPLIFIER (3) LOUDSPEAKER OUTPUT: Unscrew the knob that secures the speaker output connector and pull the securing block out far enough to allow access to the binding posts. Install the positive (usually red) loudspeaker cable spade terminal to the positive (+) binding post and the negative spade terminal to the negative (-) binding post. Secure the loudspeaker connections by tightening the knob securely with your fingers.
Signal & power connections OW N E R ’ S M A N UA L MODEL 501 MONO AMPLIFIER (6) 12V REMOTE TRIGGER: A 1/8” (3.5 mm) mini-plug connector is provided on the rear panel for remotely switching the amplifier between Operational and Standby modes. When connected to another component with the proper circuitry, the amplifier standby function can be turned ON and OFF remotely in a custom installation, theater, or automated system setup.
S P E C I F I C AT I O N S OW N E R ’ S M A N UA L MODEL 501 MONO AMPLIFIER Output Power, Continuous RMS 500 watts @ 8 ohms, 1000 watts @ 4 ohms Frequency Response 5 Hz – 45 kHz, 3 dB @ 8 ohms Peak Output Current > 45 amps Dynamic Range 120 dBa Load Impedance Range 2 ohms – 16 ohms Input Impedance 40k ohms THD + Noise, 0.1 watts – 500 watts, 4 ohm < .1%, Typically .01% @ 1 kHz CCIF Intermodulation Distortion, 19/20 kHz < .
DIMENSIONS OW N E R ’ S M A N UA L MODEL 501 MONO AMPLIFIER 8.4 in. (213 mm) 2.8 in. (72 mm) 13.0 in. (292 mm) 14.6 in. (372 mm) 3.3 in. (85 mm) 14 P O B OX 7 2 3 1 , C O LO R A D O S P R I N G S , C O LO R A D O 8 0 9 3 3 U S A E - m ail : j rdg @ j e f f ro w land . co m WWW. J E FF R O W L A N D .
O P T I O N A L a d j u s t m e nt s OW N E R ’ S M A N UA L MODEL 501 MONO AMPLIFIER 1 adjusting amplifier OVERALL GAIN 2 3 J103 Step 1: Unplug the Model 501 Mono Amplifier power cable from the wall AC outlet. (DEFAULT) 26 dB GAIN 1 Step 2: Place the unit upside-down on a soft, clean surface. Using a #2 Phillips screwdriver, remove the ten screws that secure the bottom cover of the unit. Step 3: Locate jumper J103 on the rear panel board of the unit.
P O B OX 7 2 3 1 , C O LO R A D O S P R I N G S , C O LO R A D O 8 0 9 3 3 U S A E - m ail : j rdg @ j e f f ro w land . co m WWW. J E FF R O W L A N D .
