Yamaha SV10 - Manual (Page 4)

Connecting the Speakers
CONNECTION EXAMPLE
The illustration below shows audio connections for a standard setup using two speaker systems.
DAISY-CHAINING SPEAKERS
Since the speaker systems in this series are equipped with two input terminals that are internally connected in parallel, it is
possible “daisy-chain” speakers by connecting the output from the power amplifier to one phone jack, and a second speaker
system to the other.
All speaker models in this series have a nominal impedance of 8 Ω. Since most power amplifiers are designed to provide stable
performance at a load impedance of 4 or 8 Ω, Yamaha recommends that no more than two 8Ω speaker systems be daisy-chained
together. This will allow the amplifier to operate properly and avoid overheating.