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How to connect speaker in back 70v speaker - Samson Airline 77 Aerobics Wireless Headset System FREQUENCY / 801.375 Microphone

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What is best way to wire speakers to 70V amplifier


If you are attempting to connect standard 4 ohm or 8 ohm speakers to a 70v amplifier, you will need to purchase "MATCHING TRANSFORMERS" for the speakers. These matching transformers will be available from the manufacturer of the 70v amplifier.

Apr 20, 2015 | Pyle 6.5" Dual In-Ceiling Speaker System

1 Answer

How to wire these speakers in series or parellel cirecuit?


wire speakers in parallel as the power diminishes after each speaker and before the next one if wired in series

Apr 20, 2015 | Pyle 6.5in ceiling w/70 volt spkr trans...

1 Answer

I have 6 ceiling speakers 8 ohm,how can i connect to receiver htr-6160. Thanks


One way to connect your ceiling speakers is to have a 70V line system.

These would mean installing a step up transformer and individual

transformer on each.


there is also an option of having a volume control on each speaker

Oct 16, 2010 | Yamaha HTR-6160 Receiver

1 Answer

I have the TOA 906MK2 and do not know how to hook up 2 JBL 8 ohm speakers to it. I am unsure about the connections int he back (25v or 70v). How do I make this connection?


you should not connect any regular spks to the 25/70 line o/ps use the direct 8ohms connections if they exist, this amp is normally used for what used to be called 100V line and produces real AC volts on the 25/70 outputs this will damage any normal non transfomer type speaker.

Hope this helps
Thanks for using FixYa

Aug 10, 2010 | TOA Electronics P-924MK2 Amplifier

1 Answer

How to activate 70v line of crest audio cki 800v


First of all the 70 volt line is used when we are dragging long lengths of speaker wires. hence to counter the drop we use a high voltage line brring it further down without any remarkable drop and use a step down matching transformer to power the speaker according to the impedance of the speaker to the secondary of the transformer. Connect the 70 volt to the 70 volt output in the amplifier. Now connect the other end of the wires tto the primary of the 70 volt transformer. Use the secondary output to connect to the speaker using the tap most suitable..2, 4,6,8 ohms . Check the phasing when you connect or reverse if the bass quality is less.
Hope this helps. Good day

Jun 29, 2010 | Crest Audio CKi 800v Amplifier

1 Answer

I hope you can help:-) I have a Realistic 35 watt solid state P.A. amplifier and on the back of the amp is this: 70V 16 8 4 COM There are holes under them for wires, how do I hook up the speakers to this...


This would depend on if you are using 4,8,16 ohm speakers or a 70v system.

For regular speakers the (-) wire would go to the COM terminal
the (+) would go to either the 4,8 or 16 ohm terminal (Check on the speaker itself for the "impedance").

If more then one speaker is used then there is some other math involved, but i can help with that.

The 70V terminal is used when powering a bunch of celing speakers like in stores and malls. Each speaker has its own transformer on it, all the transformers are connected togeather in a chain and wired to the COM and 70V terminals.

Nov 13, 2009 | Audio Players & Recorders

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