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Bruce Whitener Posted on Jan 10, 2018

Do you know where I can find a owner's manual for a realistic mpa-20 cat number 32-2020b???

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Martin Olney

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  • Posted on Jan 10, 2018
Martin Olney
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Anonymous

  • 2992 Answers
  • Posted on Jun 16, 2009

SOURCE: Realistic MPA-35 amp by Radio Shack

It's not that this amp isn't like "newer amps" with + and - terminals, it's that this amp is made for public-address system use. This kind of amp is used in a store, for instance, to pump background music through speakers all over the place. The terminals you connect to are determined by total impedance of the speaker configuration used.

Most single speakers, or the two- or three-way cabinets for home stereo systems, are 8 ohms. If you're connecting a single speaker you use the "common" and "8 ohm" terminals on the rear panel. With multiple speakers, you need to figure out the total impedance and use the appropriate terminal. In series, impedances add. Two 8 ohm speakers in series would total 16 ohms, so you use the common and 16 ohm terminals. In parallel, the total impedance drops. Two 8 ohm speakers in parallel total only 4 ohms. You need to figure the total impedance of the speaker configuration and connect accordingly. Too great of a mismatch will damage the amp or speakers or both.

You might be able to find the manual for this amp on Radio Shack's website. Here's a link to the manual for the model MPA-40 which should have similar output terminals. The basic information about figuring out total impedance and general use of PA amps applies to your amp as well.

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Anonymous

  • 1 Answer
  • Posted on Jan 26, 2010

SOURCE: Looking for manual Realistic MPA-40 35W

I have a realistic mpa-40 35 -watt pa amplifier owner's manual
cat, no, 32-2032A
You can conyact me @ [email protected]

Anonymous

  • 122 Answers
  • Posted on Feb 15, 2010

SOURCE: I would like to download an owners manual for a

go to the manufacturers website and find the drivers there

Anonymous

  • 8546 Answers
  • Posted on Apr 29, 2011

SOURCE: Need specs and all info

http://support.radioshack.com/support_audio/26947.htm

http://support.radioshack.com/support_audio/doc62/62610.pdf

Anonymous

  • 531 Answers
  • Posted on Aug 24, 2011

SOURCE: I would like to download

Hi

 

Download the manual as a PDF from here:

 

www.repeater-builder.com/radio.../htx-202/htx-202-owners-manual.pdf

 

Hope this helps.

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Related Questions:

0helpful
1answer

Greetings, could you help me with the schematic of the realistic MPA 45-35 amplifier. Thank you.

well Radio Shack is dead.. so that is out.
google dead today? (what else is there for the dead? IDK)

Public Address Amplifier (1991)
and old. real old.
the free users manual is on line, googled.
but it had no real schematic there new..
the users guide shows how to connect it only and use it.
repairs need 2 things, (besides shop tools and meters)
a schematic
and the BOM bill or materials. (parts list)
and many parts inside are not sold 31 years later.

google away, for ever and ever there.

https://search.brave.com/search?q=realistic+MPA+45-35+%2C+schematic&source=web
0helpful
2answers

Need an owner's manual

Antonline.com all 800 numbers for all manufactures
0helpful
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Realistic uhf/vhf model 20-400 pro 58 ten channel. Where can I get an owner's manual?

Products associated to Radio Scanners - RadioShack.com

support.radioshack.com/productinfo/ProductResults.asp?...Scanners...
Get Acrobat Reader. Previous Page. Products associated to Radio Scanners. SKU/Catalog #, Model, Description ... 20-139 · Realistic PRO-38 10-Channel Direct Entry Programmable Scanner ... 20-313, Pro-76, Pro-76 200-Channel VHF/AIR/UHFHandheld Scanner ... 20-400 · Realistic PRO-58 Programmable Scanner.
0helpful
2answers

Schematic diagram Realistic 40 watt amp, part # 32-2054.

This unit looks to be a AC/DC PA amplifier. Here's an owners manual if you don't have one. That and a parts list is about all I could find. Mike
http://support.radioshack.com/support_audio/doc73/73142.pdf
5helpful
2answers

Looking for manual Realistic MPA-40 35W

I have a realistic mpa-40 35 -watt pa amplifier owner's manual
cat, no, 32-2032A
You can conyact me @ [email protected]
10helpful
2answers

Realistic MPA-35 amp by Radio Shack

It's not that this amp isn't like "newer amps" with + and - terminals, it's that this amp is made for public-address system use. This kind of amp is used in a store, for instance, to pump background music through speakers all over the place. The terminals you connect to are determined by total impedance of the speaker configuration used.

Most single speakers, or the two- or three-way cabinets for home stereo systems, are 8 ohms. If you're connecting a single speaker you use the "common" and "8 ohm" terminals on the rear panel. With multiple speakers, you need to figure out the total impedance and use the appropriate terminal. In series, impedances add. Two 8 ohm speakers in series would total 16 ohms, so you use the common and 16 ohm terminals. In parallel, the total impedance drops. Two 8 ohm speakers in parallel total only 4 ohms. You need to figure the total impedance of the speaker configuration and connect accordingly. Too great of a mismatch will damage the amp or speakers or both.

You might be able to find the manual for this amp on Radio Shack's website. Here's a link to the manual for the model MPA-40 which should have similar output terminals. The basic information about figuring out total impedance and general use of PA amps applies to your amp as well.
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