MM-8848 - Power amplifier PEAVEY - Free user manual and instructions

USER MANUAL MM-8848 PEAVEY

MM™ 8800 Series MM™ 8830 MM™ 8840 MM™ 8848 Operating Guide A rc h i t e c t u r a l A c o u s t i c s ® Intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. Intended to alert the user of the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product. CAUTION: Risk of electrical shock – DO NOT OPEN! CAUTION: To reduce the risk of electric shock, do not remove cover. No user serviceable parts inside. Refer servicing to qualified service personnel.

E N G L I S H ENGLISH MediaMatrix®

BoB Interface Features

• Eight balanced audio inputs and eight balanced audio outputs, each utilizing 18-bit converters to transfer audio data to and from the MediaMatrix system.
• Eight analog control inputs that may be used to control a device in a MediaMatrix view.
• Eight digital control outputs that may be used to drive external TTL logic level devices.
• A digital interface, 9-pin D-type connector. The MediaMatrix® MM-8800 series Break-Out-Box (BoB) provides the means of interconnection between the MediaMatrix MainFrame, MiniFrame or X-Frame, and other components of the audio system. FRONT PANEL POWER LED (1) Illuminates when AC power is being supplied to the unit.

REAR PANEL IEC LINE CORD INPUT (2) Provided to accept the removable AC line cord. FUSE (3)

WARNING: THE FUSE SHOULD ONLY BE REPLACED WHEN THE POWER CORD HAS BEEN

DISCONNECTED FROM ITS POWER SOURCE. CAUTION: USING A FUSE LARGER THAN THE RECOMMENDED SIZE COULD RESULT IN PERMANENT DAMAGE TO THE UNIT. The fuse is located within the cap of the fuseholder. If the fuse should fail, IT MUST BE REPLACED WITH THE SAME TYPE AND VALUE IN ORDER TO AVOID DAMAGE TO THE EQUIPMENT AND TO PREVENT VOIDING THE WARRANTY. If the unit repeatedly blows fuses, it should be taken to a qualified service center for repair. POWER SWITCH (4) Switch to “On” position to turn on. The red LED will illuminate indicating power is being supplied to the unit. COMPUTER DIGITAL I/O INTERFACE (5) Connect the 9-pin D-type BoB cable here. This cable provides the link to the MediaMatrix system. CONTROL CIRCUIT OUTPUTS (6) These are TTL level outputs, switchable from within a MediaMatrix view. There are two electrical connections per channel; the right connection is the ground interface and the left connection is the TTL level output. See the Wiring Connections section for Control Output circuit examples. CONTROL CIRCUIT INPUTS (7) The inputs provide the means of controlling a device within a MediaMatrix view. There are two electrical connections per channel. See the Wiring Connections section for Control Input circuit examples. AUDIO INPUTS (8) Each of these eight channels is a balanced analog audio input to the MediaMatrix system. See the Wiring Connections section for Audio Input wiring examples. AUDIO OUTPUTS (9) Each of these eight channels is a balanced analog audio output from the MediaMatrix system. See the Wiring Connections section for Audio Output wiring examples.

SPECIFICATIONS Maximum Input Level: +18 dBu or +24 dBu Signal-to-Noise Ratio: MM-8830: Greater than 96 dB MM-8840: Greater than 98 dB MM-8848: Greater than 100 dB Input Impedance: Greater than 12K ohms for +18 dBu full scale Greater than 15K ohms for +24 dBu full scale Electronically Balanced Crosstalk: MM-8830: Greater than 95 dB MM-8840: Greater than 95 dB MM-8848: Greater than 97 dB Maximum Output Level: +16 dBu, +12 dBu, +18 dBu, or +24 dBu (600 ohm load) Total Harmonic Distortion: MM-8830: Less than 0.01% at 1 kHz MM-8840: Less than 0.01% at 1 kHz MM-8848: Less than 0.01% at 1 kHz SYSTEM SPECIFICATIONS Output Impedance: 200 ohms, electronically balanced

DIGITAL TO ANALOG CONVERTER

Power Requirements: Domestic: 120V AC, 60 Hz, 50W Export: 230V AC, 50/60 Hz, 50W MM-8830: 18-bit, 64x oversampled, 32 kHz sample rate MM-8840: 18-bit, 64x oversampled, 44.1 kHz sample rate MM-8848: 18-bit, 64x oversampled, 48 kHz sample rate Dimensions & Weight: 3.5" H x 19" W x 11.25" D (excluding connectors) 17 lbs. Frequency Response: MM-8830: ±1.0 dB, 20 Hz to 16 kHz MM-8840: ±0.5 dB, 20 Hz to 20 kHz MM-8848: ±0.5 dB, 20 Hz to 20 kHz Included Accessories: IEC Line Cord 6' BoB Cable (2) 16-position Phoenix-type connectors (4) 12-position Phoenix-type connectors Signal-to-Noise Ratio: MM-8830: Greater than 92 dB MM-8840: Greater than 95 dB MM-8848: Greater than 96 dB

ANALOG TO DIGITAL CONVERTER

MM-8830: 18-bit, 64x oversampled, 32 kHz sample rate MM-8840: 18-bit, 64x oversampled, 44.1 kHz sample rate MM-8848: 18-bit, 64x oversampled, 48 kHz sample rate Crosstalk: MM-8830: Greater than 91 dB MM-8840: Greater than 94 dB MM-8848: Greater than 95 dB Frequency Response: MM-8830: ±1.0 dB, 20 Hz to 16 kHz MM-8840: ±0.5 dB, 20 Hz to 20 kHz MM-8848: ±0.5 dB, 20 Hz to 20 kHz Total Harmonic Distortion: MM-8830: Less than 0.01% at 1 kHz MM-8840: Less than 0.01% at 1 kHz MM-8848: Less than 0.01% at 1 kHz

Due to our efforts for constant improvements, features and specifications listed herein are subject to change without notice.

Linear example allows control of device by tracking pot linearly. Nonlinear example allows control of device by tracking pot nonlinearly. Switch allows binary control of a device in a MediaMatrix view. Variable DC supply can be used to control device - NO MORE THAN 10V! (1) Nonlinear Example (1) Linear Example

10K Linear Pot 10K Linear Pot

Out Wiring Diagram Control Output Examples The eight control outputs appear on a separate Phoenix connector on the back of the Break-Out-Box. They provide logic outputs from the system. The output voltage is TTL format. Outputs are capable of sourcing 6ma and sinking 20ma while maintaining valid TTL levels. There are two electrical connections for each channel output control. When viewing the unit from the back, the left connection is the positive terminal. These outputs can be used to control devices as follows: An Opto-Isolator:

100Ω 1000Ω Up to 15 TTL Loads: An LED:

Out Wiring Diagram Using the Breakout Box with an Unbalanced Audio Device

1. Unbalanced audio device output to balanced BoB input.

2. Balanced BoB output to unbalanced audio device input.

Note: Be sure to ground the unused negative terminal on the BoB input/output. 1/4" Phone Plug Unbalanced Audio Device Output Tip (insulated conductor) OUTPUT Single-Conductor, Shielded Wire Sleeve Tip (insulated conductor) Sleeve (shield) Tip (insulated conductor) Single-Conductor, Shielded Wire Sleeve (shield) Sleeve INPUT Tip (insulated conductor)

1/4" Phone Plug Unbalanced Audio Device Input Wiring Diagram CD Player or Other Line Level Audio Device Note: If using an unbalanced audio source, be sure to ground the unused negative inputs on the BoB. Insulated Conductor 1 Left Out Insulated Conductor 2 Shielded, 2-Conductor Wire Right Out Shield Right (Insulated Conductor 2) Shield Left (Insulated Conductor 1) BoB Cable Shielded, 2-Conductor Wire Shielded, 2-Conductor Wire + – SH + – SH Right Input Left Input MediaMatrix Computer BoB Cable Connected to MM DSP Card Left Out Right Out

Wiring Diagram MediaMatrix System with Microphone Preamp Microphone Pin 1 (ground) Pin 2 (+ conductor) A/A-8P™ Pin 3 (- conductor) Pin-to-Pin Connections use Shielded, 2-Conductor Wire per Channel (x8) MM-8800 Series BoB BoB Cable Shielded, 2-Conductor Wire Shielded, 2-Conductor Wire + – SH + – SH Right Input Left Input MediaMatrix Computer BoB Cable Connected to MM DSP Card Left Out Right Out

For further information on other Peavey Architectural Acoustics products, ask your Authorized Peavey Sound Contractor for the appropriate Peavey Architectural Acoustics catalog/publication: The BluePrint Commercial Sound for Permanent Installations Engineered Sound Products for Permanent Installations

Be Sure to Ask About Products in the Following Categories: Modular Series Mixer, Mixer/Amplifiers Rack Kits for MA™ Series Products Wall Mount Mixer/Amplifiers Non-powered Mixers Powered Mixers Equalizers-Analog Equalizers-Programmable Electronic Crossover/Delay Processors Power Amplifiers Loudspeaker Systems Acoustical Components Utility Amplifiers, Mixer/Amplifiers Rack Kits for UMA™ Series Products Telephone Paging Zone Paging Systems Mixers and Mixing Consoles Power Amplifiers Loudspeaker Systems Microphones

LIMITED WARRANTY Peavey Electronics Corporation warrants to the original purchaser of this new Architectural Acoustics product that it is free from defects in material and workmanship. If within one (1) year from date of purchase a properly installed product proves to be defective and Peavey is notified, Peavey will repair or replace it at no charge. (Note: Batteries and patch cords not covered.) “Original purchaser” means the customer for whom the product is originally installed. Damage resulting from improper installation, interconnection of a unit or system of another manufacturer, accident or unreasonable use, neglect or any other cause not arising from defects in material and workmanship is not covered by this warranty. The warranty is valid only as to products purchased and installed in the United States and Canada. THIS LIMITED WARRANTY IS IN LIEU OF ANY AND ALL WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR USE. UNDER NO CIRCUMSTANCES WILL PEAVEY BE LIABLE FOR ANY LOST PROFITS, LOST SAVINGS, INCIDENTAL DAMAGES OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PRODUCT, EVEN IF PEAVEY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. THIS LIMITED WARRANTY IS THE ONLY EXPRESSED WARRANTY ON THIS PRODUCT, AND NO OTHER STATEMENT, REPRESENTATION, WARRANTY, OR AGREEMENT BY ANY PERSON SHALL BE VALID OR BINDING UPON PEAVEY. Peavey’s liability to the original purchaser for damages for any cause whatsoever and regardless of the form of action is limited to the actual damages up to the greater of Five Hundred Dollars ($500) or an amount equal to the purchase price of the product that caused the damage or that is the subject of or is directly related to the cause of action. This limitation of liability will not apply to claims for personal injury or damage to real property or tangible personal property allegedly caused by Peavey’s negligence. For information on service under this warranty, call a Peavey customer service representative at (601) 483-5376.

IMPORTANT SAFETY INSTRUCTIONS

WARNING: When using electric products, basic cautions should always be followed, including the following.

Read all safety and operating instructions before using this product. All safety and operating instructions should be retained for future reference. Obey all cautions in the operating instructions and on the back of the unit. All operating instructions should be followed. This product should not be used near water, i.e., a bathtub, sink, swimming pool, wet basement, etc. This product should be located so that its position does not interfere with its proper ventilation. It should not be placed flat against a wall or placed in a built-in enclosure that will impede the flow of cooling air. This product should not be placed near a source of heat such as a stove, radiator, or another heat producing amplifier. Connect only to a power supply of the type marked on the unit adjacent to the power supply cord. Never break off the ground pin on the power supply cord. For more information on grounding, write for our free booklet “Shock Hazard and Grounding.” 10. Power supply cords should always be handled carefully. Never walk or place equipment on power supply cords. Periodically check cords for cuts or signs of stress, especially at the plug and the point where the cord exits the unit.

11. The power supply cord should be unplugged when the unit is to be unused for long periods of time.

12. If this product is to be mounted in an equipment rack, rear support should be provided.

13. Metal parts can be cleaned with a damp rag. The vinyl covering used on some units can be cleaned with a damp rag or an ammoniabased household cleaner if necessary. Disconnect unit from power supply before cleaning. 14. Care should be taken so that objects do not fall and liquids are not spilled into the unit through the ventilation holes or any other openings.

15. This unit should be checked by a qualified service technician if:

a. The power supply cord or plug has been damaged. b. Anything has fallen or been spilled into the unit. c. The unit does not operate correctly. d. The unit has been dropped or the enclosure damaged. 16. The user should not attempt to service this equipment. All service work should be done by a qualified service technician.

17. This product should be used only with a cart or stand that is recommended by Peavey Electronics.

18. Exposure to extremely high noise levels may cause a permanent hearing loss. Individuals vary considerably in susceptibility to noise induced hearing loss, but nearly everyone will lose some hearing if exposed to sufficiently intense noise for a sufficient time. The U.S. Government’s Occupational Safety and Health Administration (OSHA) has specified the following permissible noise level exposures. Duration Per Day In Hours Sound Level dBA, Slow Response

1/2 1/4 or less According to OSHA, any exposure in excess of the above permissible limits could result in some hearing loss. Ear plugs or protectors in the ear canals or over the ears must be worn when operating this amplification system in order to prevent a permanent hearing loss if exposure is in excess of the limits as set forth above. To ensure against potentially dangerous exposure to high sound pressure levels, it is recommended that all persons exposed to equipment capable of producing high sound pressure levels such as this amplification system be protected by hearing protectors while this unit is in operation. SAVE THESE INSTRUCTIONS!

ARCHITECTURAL ACOUSTICS® Features and specifications subject to change without notice. A Division of Peavey Electronics Corporation 711 A Street / Meridian, MS 39301 / U.S.A. / (601) 483-5376 / Fax (601) 486-1154 #80300361 Printed in U.S.A. 7/96