Forgive me if the answer to my question is contained elsewhere in the thread, but I didn't search the whole 66 pages, etc.
I am going to attach 8 Aura Bass Shaker Pro's (4 ohm, 50 watts) to 8 Berkline theater recliners (one/chair); I have an older Onkyo amp (A RV-401) to power them. The amp specs are 100 watts/ch; I'd like to connect the shakers as "A" and "B" 'speakers', so I can turn off one bank (front 4 chairs = A vs rear four on riser = B) selectively with the A/B/A+B switch on the amp.
I've also got an 50 Hz low pass FMOD for the input for the amp, and one of the inputs (VCR2) allows me to input signal into either L or R channel and use a "Mono" setting to output to both sides.Here's the question:
The amp specs also recommend 8 ohm speaker loads for A or B, but 16 ohm speakers for A+B. What's the best option for wiring these?
Correct me if I'm wrong, but I've thought of two options;
1.) Wire all four shakers (= four chairs) in a row as series and call it "left speaker for the 'A' speakers" with other row as "right speaker (also 'A')". Only then use the "A" option for the amp and balance L vs R if I want to defeat one row from shaking. This would give me a 16 ohm load, but only 25 watts/shaker, right?
2.) Wire two shakers (= two chairs) in a row in series as "left/A" and the other two in that row also in series as "right/A". Similarly, the back row pair are "left/B" and "right/B". This gives me control of two chairs in a row balanced against the other two in the same row, with A or B selected for front or back row. Two shakers in series = 8 ohms for each channel (which the amp should handle) and 50 w/shaker (better!). The only issue is if I want to use all 8 shakers (i.e., "A+B") which is a lower impedance than the amp suggests (16 ohm for A+B, as above).
My preference would be for #2 if the amp would handle itin truth, we usually don't have all 8 chairs occupied at once, and if we did, I wonder if the limited frequency of 50 Hz would somehow be "protective" by limiting the input signal, as long as I didn't turn the volume of the amp up too high.
Any suggestions as to flexibility vs. burning up the amp
PS: If you're wondering why I'd want to turn some shakers off
it's a WAF issue. There's some concern about "someone"
not liking the shaking in the chair, so I offered to try to wire it so that it could be defeated if desired. This all might be moot if she likes it, but I just wanted to know my options otherwise, etc. Thanks in advance for your help!!