A-A-8P - Amplifier PEAVEY - Free user manual and instructions

USER MANUAL A-A-8P PEAVEY

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.

WARNING: To prevent electrical shock or fire hazard, do not expose this appliance to rain or moisture. Before using this appliance, read the operating guide for further warnings.

The Peavey Architectural Acoustics A/A-8P™ preamp is a high-quality mic/line preamp with eight separate transformer balanced inputs. Each channel provides a level control with a selectable mic or line input to accommodate a wide range of input levels.

The A/A-8P front panel provides immediate indication of signal status with an activity and clip LED. Included in each channel's signal path is a level limiter which is preset at the optimum input level for the MM-8840 and MM-8830 Digital Interface. Also, each channel provides industry standard +48 volts of phantom power. Both the limiter and phantom power are user enabled on a per channel basis with convenient dip switches located on the back panel. The inputs and outputs are both "Euro" type connectors. To reduce unauthorized or accidental level changes, we have provided tamper resistant level controls that are installer adjustable with a screw driver.

The A/A-8P is ruggedly packaged in an industry standard 19" single rack space unit.

FRONT PANEL

Signal LED Indicator (1)

Illuminates when the signal, present at the output of the channel, is -20 dBu or greater.

Clip LED Indicator (2)

Illuminates when the signal, present at the output of the channel, is +15 dBu or greater.

Input Level Control (3)

Controls the gain of the channel. It should be adjusted to suit the input signal level. Desired output level of the preamp unit is just below the clipping level indication.

Power LED Indicator (4)

Illuminates when power is active.

Mic/Line Input Switch (5)

Selects either the Microphone low level input (button out) or the Line high level input (button in). This switch changes the input on a per channel basis. The low level setting is for signals from 1mV (-62 dBu) to 160mV (-14 dBu). The high level setting is for signals from 80mV (-19 dBu) to 14.8V (+25 dBu). Also, by selecting the high level position (in), the unit will disable the phantom power voltage, overriding the phantom dipswitch for that channel.

Limit Defeat Switch (6)

Enables or disables the limiter in the preamp. The max level for the A/A-8P is preset at +15 dBu (4.4 V) at the factory. This level has been optimized for the Media Matrix MM-8840 and MM-8830 input. Enabling the limiter will assure that the level of the preamp output will not exceed +15 dBu under normal conditions. Defeating the limit circuitry will allow the A/A-8P to produce up to +26 dBu output levels.

NOTE: The limiter circuit is not provided to replace proper set up of the channel level control with regards to input/output levels, etc.

Phantom Power Defeat Switch (7)

The A/A-8P provides +48 volts DC to pins (+) High and (-) Low of the input connections. This switch will enable or defeat supply of that voltage to the channel designated by the switch labeling.

NOTE 1: Phantom power is defeated when channel is switched from low level input to high level input.

NOTE 2: When shipped from the factory, the A/A-8P has all "dip" switches set in the default position of Phantom Power off (up) and Limiter enabled on each channel (all switches up).

To turn on Phantom Power for each channel, the dip switch for that channel should be pushed down to the marker indicating " +48V (channel #) ON". This will enable Phantom Power to that channel only.

To defeat the level limiter on each channel, the dip switch for each channel should be pushed down.

Phantom Power switches are located on the outer edge of each 4-switch dip package located on the rear panel. Limiter switches are located between the Phantom Power switches. These dip switches are best accessed with a small screwdriver, which helps to prevent unauthorized tampering with important preset.

Terminal Connection Diagrams (8):

Microphone/Line inputs and Line level outputs are screw terminal and are labeled (+) for High, (-) for Low, and (SH) for Shield.

SPECIFICATIONS

Inputs:

Euro type connector, balanced low or high impedance.

Outputs:

Euro type connector, balanced low impedance 100 ohms.

Output Level:

+15 dBu with Limiter activated (rated)

+26 dBu maximum

Controls:

8 input gain controls (tamper resistant, flushmount, screwdriver slotted)

Noise:

-75 dB below full output

THD:

Less than 0.02% at 1 kHz signal input

Activity LED:

Activated at or above 77mV (-20 dBu)

Clip LED:

Activated at or above 4.4 volts (+15 dBu)

Limiter Threshold:

+15 dBu

Phantom Power:

+48 volts defeatable each channel via dipswitch. High level line setting will override defeat switch and shut off phantom to channel.

Dimensions:

1.75" (H) x 19" (W) x 11" (D)

Weight:

8.6 lbs

Color:

Gray

Power Consumption:

AC 120 volts, 60 Hz, 20 watts

INPUT

Mic Setting (low level):

Frequency Response: 20 Hz to 30 kHz (±1.5 dB)

Maximum Gain: 65 dB at "max" setting

Maximum Input Level: 160mV (-14 dBu)

Minimum Gain: 28 dB at "min" setting

Minimum Input Level for Full Output: 2 mV (-52 dBu)

Input Impedance: 2 K ohms

E.I.N.: 125 dBV (150 ohm, 65 dB gain)

Line Setting (high level):

Phantom power automatically defeated

Maximum Gain: 28 dB

Maximum Input for Rated Output: 14.8 volts (+26 dBu)

Minimum Gain: -10 dB attenuation of input signal

Minimum Input Level for Rated Output: 172 mV (-13 dBu)

Input Impedance: 20 K ohms

A/A-8P Flow Diagram

ESpañOL

Signal LED Indicator (Indicator LED de senal) (1)

Phantom Power Defeat Switch (Phantomspeisung-Ein/Aus-Schalter) (7)

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

UtilityAmplifiers, 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 WARRANTYES, EXPRESSED OR IMPLIED, INCLUDING THE IMPLIED WARRANTYES 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 ASING 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 [phone].

IMPORTANT SAFETY INSTRUCTIONS

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

1. Read all safety and operating instructions before using this product.
2. All safety and operating instructions should be retained for future reference.
3. Obey all cautions in the operating instructions and on the back of the unit.
4. All operating instructions should be followed.
5. This product should not be used near water, i.e., a bathtub, sink, swimming pool, wet basement, etc.
6. 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.
7. This product should not be placed near a source of heat such as a stove, radiator, or another heat producing amplifier.
8. Connect only to a power supply of the type marked on the unit adjacent to the power supply cord.
9. 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 ammonia-based 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.

1. The user should not attempt to service this equipment. All service work should be done by a qualified service technician.
2. This product should be used only with a cart or stand that is recommended by Peavey Electronics.
3. 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
8
6
4
3
2
1 1/2
1
1/2
1/4 or less

Sound Level dBA, Slow Response
90
92
95
97
100
102
105
110
115

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!

Commercial Audio Equipment 25ES

Features and specifications subject to change without notice.

A Division of Peavey Electronics Corporation

711 A Street / Meridian, MS 39301 / U.S.A. / [phone] / Fax [phone]

80302355

Printed in U.S.A. 6/96