Correct connectin of multiple loudspeakers
Correct connectin of multiple loudspeakers
(OP)
I have to connect loudspeakers in a seater coach. Each double seat has an 8 ohm 20W speaker. There are 7 such speakers on each side,each side being connected into an amplifier with 20 per channel, 4 ohms impedance.
There are many combinations of series/parallel arrangements to get close to 4 ohms. For instance, connecting No. 1 and 2 in parallel, 3 and 4 in parallel, 5 and 6 in parallel. This gives 4, 4, 4 and 8 ohms. Then connecting all three 4 ohms in series giving 12 and 8 ohms. Finally connecting 12 and 8 in parallel, giving < 5 ohms.
My question is, what about the power from each speaker. Will they be balanced or will some of them be louder than others.
What other considerations are important.
Best regards,
Voltair
There are many combinations of series/parallel arrangements to get close to 4 ohms. For instance, connecting No. 1 and 2 in parallel, 3 and 4 in parallel, 5 and 6 in parallel. This gives 4, 4, 4 and 8 ohms. Then connecting all three 4 ohms in series giving 12 and 8 ohms. Finally connecting 12 and 8 in parallel, giving < 5 ohms.
My question is, what about the power from each speaker. Will they be balanced or will some of them be louder than others.
What other considerations are important.
Best regards,
Voltair
RE: Correct connectin of multiple loudspeakers
RE: Correct connectin of multiple loudspeakers
place 2 groups in series to achieve 8 ohms impedance
place the 8 ohm groups in shunt to achieve the 4 ohm impedance
connect to amp
of course you'll dump some power into the load
however you won't have a mismatch at your amplifier either
good luck
RE: Correct connectin of multiple loudspeakers
RE: Correct connectin of multiple loudspeakers
TX is the best solution for 7 speakers, most power output.
Resistor is cheapest way to evenly distribute power.
No TX + no resistor + seven speakers = severe mismatch in power output.