Sherbourn PA7-150 User Manual

7-channel amplifier

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Summary of Contents for Sherbourn PA7-150

  • Page 2: Table Of Contents

    Table of Contents Thank You From Sherbourn Safety Precautions NEC (National Electrical Code) Standards A Note for the Cable Television (CATV) Installer Antenna Grounding Outside the House Unpacking Your Sherbourn Amplifier 7-150 Amplifier Features Front Panel Layout Rear Panel Layout Installation and Connections AC Power Considerations Physical Placement / Heat Considerations...
  • Page 3: Thank You From Sherbourn

    Full details of the warranty coverage provided by Sherbourn Technologies can be found at the end of this booklet.
  • Page 4: Safety Precautions

    Safety Precautions The following situations require that your 7-150 be serviced only by qualified service personnel; Read this User’s Guide thoroughly before attempt- 1. The power-supply cord or the plug has been ing to install and configure the 7-150 Amplifier. damaged;...
  • Page 5: Nec (National Electrical Code) Standards

    NEC (National Electrical Unpacking the 7-150 Code) Standards All Sherbourn amplifiers are double boxed to survive the rigors of long distance shipping and arrive to you undam- A Note for the Cable Television (CATV) Installer aged. The outer box may show wear and tear, but this is This reminder is to call the CATV system installer’s atten- no cause for alarm.
  • Page 6: 7-150 Amplifier Features

    7-150 Amplifier Features • Audiophile quality performance and sound • High current power supply • Low noise toroidal power transformer • Advanced microprocessor operating system • Complementary, discrete power amplifier design incorporating high current, high speed, on semiconductor power devices •...
  • Page 7: Front Panel Layout

    Front Panel Layout 1. Front Panel Power Switch This switch provides the ON/OFF control of the 7-150 from the front panel. When the unit is off and in standby mode, the switch illuminates amber. Automatic switching is accomplished with the 3.5mm trigger in- put on the rear panel using a 5-12VDC control signal.
  • Page 8: Rear Panel Layout

    Rear Panel Layout 6. Remote Trigger Input – The 7-150 can be remotely triggered by another device, and in turn, remotely trigger another device. When a remote trigger output from a pre- 1. Status LED Switch – Status LEDs can be turned on amplifier, processor or other audio device is connected to and off with this switch.
  • Page 9: Installation And Connections

    Installation and Connections Do NOT place a turntable directly above or directly adjacent to the amplifier. AC Power Considerations Before placing the amplifier on a shelf, verify that the weight The majority of household electrical sockets (in places bearing capacity of the shelf is 80 lbs or greater. The am- other than the kitchen and garage) are 15 amperes maxi- plifier is heavy and should be placed toward the bottom of mum, which is sufficient to power your Sherbourn ampli-...
  • Page 10: 12V Trigger Connections

    or interference heard in the speakers. Series and Parallel Speaker • Many RCA type patch cords can be a very tight fit Connections and there is usually a preferred method of removing them. Some have to be removed with a twisting ac- Whenever connecting more than one speaker per channel tion.
  • Page 11: Parallel Connections

    ohm speakers in series is an eight-ohm load. Series con- nection type that you use loudspeakers of the same type nections are easier on the amplifier than parallel connec- and nominal impedance for these connections. In doing so, tions as the total impedance is higher than driving a single you have the most predictable outcome for your installa- speaker.
  • Page 12: The Amplifier Shuts Down Often Or The Line Circuit Breaker Trips Often

    stereo when you were expecting 5.1 surround sound. bass performance. DOUBLE CHECK ALL THE SPEAKER CONNECTIONS!! • Check if any missing channels have been turned off in Turn-on and turn-off thumps a preamplifier setup menu. For example, the center amplifier channel will not receive a signal if the •...
  • Page 13: Other Probable Causes Of Noise

    NOTE: Never remove the ground pin from any Each RED light indicates a fault condition for the corres- ponding power module. power cords (if present). This is very dangerous. If the hum persists, disconnect all the source components A fault condition is one or more of the following: one at a time from the back of the preamplifier, until you identify the problem.
  • Page 14: Technical Features

    Technical Features • Fully protected from all fault conditions • Advanced microprocessor operating system • Soft start circuitry • External trigger turn on • Soft touch power switch • 4RU chassis w/ solid milled aluminum faceplate • IEC power inlet, 120/230 VAC configurable Licensing and Trademark Disclosures Sherbourn Disclosure...
  • Page 15 Specifications PA 7-150 Topology: Fully discrete, dual differential, high current, short signal path Class A/B. Number of Channels: Power Output (rated power; THD < 0.4%): 200 watts / channel (x7); all channels driven; into 4 Ohms. 150 watts / channel (x7); all channels driven; into 8 Ohms. Rated Power Bandwidth (at rated power;...
  • Page 16: Power Supply

    Power Supply: 850 VA toroidal power transformer. 90,000 uF of storage capacitance. Input sensitivity (for rated power; 8 Ohm load): 1.110 V Gain: 32 dB Input Connections: Unbalanced (Tiffany style, audiophile quality, gold plated RCA); one per channel. Balanced (XLR); one per channel. Each input may be independently switched to either unbalanced or balanced.
  • Page 17 Sherbourn Technologies, LLC Ten-Year Limited Warranty What does this warranty cover? Sherbourn Technologies, LLC (“Sherbourn”) warrants its products against defects in materials and workmanship. This warranty is subject to revision at any time. How long does this coverage last? This warranty commences on the date of retail purchase...
  • Page 18 “RMA” written before the number. Parcels arriving without an RMA number on the outside of the box will be refused. Sherbourn Technologies, LLC Attn: Repair Department 131 Southeast Parkway Court...

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