Z-150.4 Sp Speaker Wiring - zapco Z-150.2 SP Owner's Manual

The Z-150.4 SP four channel amplifier is virtually two 2Ch amps in one chassis and
each set of four speaker terminal can be used exactly as you would use a 2Ch amp.
The advantage of a four channel amp is primarily the saving of space (and a little
money). Using a four channel also reduces the installation work, over installing
two 2Ch amps. This is especially so with some of the unique features of the
Z-Series SP amps.
• This is the standard hookup for full range front and rear speakers
• Speakers can be 2Ω ~ 4Ω
• If the head unit has 2 sets of RCA outputs you will be able to fade front to rear.
If you have only one output, you can put the 2Ch/4Ch switch into the 2Ch
position and use only the front (Ch1/2) inputs to feed all 4 channels
• You don't have to use crossovers, but it's wise to use the HPF filters set to
30Hz or a little more as a sub sonic filter to protect the speakers. Best policy
is to check your speakers frequency range. Set the sub sonic (HP) frequency
just a little above to lowest of the speakers frequency range. i.e If the speakers
range is 40Hz ~ 18,000Hz set filter to 45Hz. The LPF switches should be in FULL
• The HPF Multiplier (x10 switch) must be in the off or x1 position
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Z-150.4 SP Speaker Wiring

Standard 4Ch Mode