Speaker wiring - questions - Yamaha A-700

[Shredded]

Beginner questions on ohms & watts.
Yamaha A-700 amp (1983). 4 speaker terminals.
Terminals state:
A or B 6~16 ohms/spkr
A + B 12 ohms min./spkr
(See pic)

Can I hook up four 8-ohm speakers? (One to each terminal?)

Amp is 100w / channel:
Does each of the 4 spkr terminals have its own 100w?
..Or does A (L&R) as a whole have 100w? (and B another 100w?)

If speakers connected to A-right & A-left, are they in parallel therefore splitting the power?

Thanks in advance for suggestions on wiring options.

 

[opnly bafld]

It is 100w x 2, the A and B speakers are wired in parallel which cuts the impedance in half.
You can hook up 2 pairs of 8 ohm speakers, but Yamaha recommends that you use only 1 pair at a time, not both.

 

[Shredded]

It is 100w x 2, the A and B speakers are wired in parallel which cuts the impedance in half.
You can hook up 2 pairs of 8 ohm speakers, but Yamaha recommends that you use only 1 pair at a time, not both.

Thank you. Just to be clear, just connect 1 speaker to A-Right, and the other speaker to B-Left?

 

[cademan]

Thank you. Just to be clear, just connect 1 speaker to A-Right, and the other speaker to B-Left?

No, connect 1 speaker to A-right, and the other speaker to A-left.

It's just a stereo (2 channel) amp, not a quad (4 channel) amp. Your B speakers are just for an extra set of speakers like if you were to have one set in the living room, and one set in the kitchen. The A and B speaker selector is so you can run both pairs at the same time or living room or kitchen speakers seperately.

 

[opnly bafld]

Like cademan said:

 

[Shredded]

Thanks again! 'A' being internally paralleled to 'B' was the info I was looking for. My setup needs control of turning off each speaker independently, so connecting one to A-right & the other to B-left allows use of the A/B buttons without changing anything electronically.
Really appreciate the info & fast response.

 

[cademan]

Thanks again! 'A' being internally paralleled to 'B' was the info I was looking for. My setup needs control of turning off each speaker independently, so connecting one to A-right & the other to B-left allows use of the A/B buttons without changing anything electronically.
Really appreciate the info & fast response.

If you got one, that's what the balance control is for.

 

[Shredded]

If you got one, that's what the balance control is for.

True..Didn't think of that! Thx.
This is for my business (gym, 6000 sq ft)
While I'm here, can anyone recommend a good modern amp that can take 6 to 8 sets of random 8-ohm speakers at high power? I currently running multiple old Pioneer vintage amps from the 1970s/80s. (SX-980, 1050, A-8, and a pioneer quadraphonic from the early 70s, etc.) After seeing how much these are worth, I'm thinking of selling all the old pioneers & getting one new unit to simplify things. I'm just not sure of what to look for. Perfect sound quality is not a concern.
Thanks in advance to any advice.

 

[oblomov]

Hmm, I would perhaps move away from consumer grade equipment for your particular use. Maybe look for the type of equipment used in department stores or clothing stores, maybe used?

I remember Abercrombe and Fitch stores cranking the jams over multiple speakers. Might be worth looking into.

 

[cademan]

PA amplifiers with 70 or 100 volt might work for your needs. Lots of options available out there.