Owner's Manual

ManualsBrandsZAPCO ManualsPower AmplifiersZAPCO Z-SP Series Super Power Amplifiers

Z-150.2 SP / Z-400.2 SP Input Ends

The Input ends of the SP amplifiers is where you find the signal input connectors and the

various controls. All the SP amps have the same basic functions, adapted slightly to fit the

expected use of each model. We look first at the stereo (2-Channel) amps. The 550 watt

(Bridged @ 4Ω) Z-150.2 SP and the 1400 watt (bridged @ 4Ω) Z-400.2 SP, since they share

exactly the same functions and controls.

Note: If you are using an amp for a band-pass midrange, the HP filter will be the lowest frequency

of the band and the LP filter will be the top of the band. This passes all the frequencies between them.

If you reverse the filters you will have no sound.

1• This is the scale for setting the crossover

frequencies to assist in accurate settings

2• Right and left RCA input connectors using

Zapco's proprietary gold plated connectors

3• To ease multi-amp installations, the amps

have pass-through RCA outputs so you can

"daisy-chain" multiple amps while only

running one front-to-back RCA.

4• Variable gain control, see note Setting Gains.

5• A unique feature of the SP crossovers is

the Multiplier x10 switch that allows accurate

frequency setting by changing the crossover

range from 15 Hz~500Hz to 150Hz~5000Hz.

This is so you can use the amp full range, as a

mid range (band-pass), or even as a tweeter amp.

6• The high-pass (HP) crossover frequency

selector

7• The Crossover function switch: To the left the

switch is in high-pass mode, in the center the

crossover is out of the signal path (full-range), to

the right both filters are in the circuit so you can

band-pass. If you are using the amp for bass the

LP will be your sub crossover while HP filter will

be a variable sub-sonic filter as low as 15Hz

8• The low-pass (LP) frequency selector

9• The X10 switch for the LP filter

10• Variable bass boost control 0dB~12dB

11• Variable bass boost on/off

12• Port for the optional bass control

13• The power on (green) LED and the protect

(red) LED

1 2 3

Mounting your Z-SP amplifier

Mounting your Zapco amplifier is easy. Just keep in mind a few guidelines:

• The amplifier can be mounted in any direction, on wood, metal, or carpet

• The metal chassis of the amp can be grounded or left isolated

• The amplifier requires adequate ventilation. Creating power creates heat, and

cooling requires air. Position the amplifier with sufficient surrounding area for air

supply and keep the end plates clear for future access

• Keep the amplifier out of the engine compartment or other locations that may

cause excessive heat or moisture

• Do not mount the amplifier to a subwoofer box or other place that may have

excessive vibration

Setting Gains: Gain pots are not volume controls. Before you first turn on your system,

you should make sure all gain controls are set to minimum. Gain controls should be used

only if absolutely necessary. Turning up gain controls causes increased noise, makes

distortion more likely and reduces the dynamic range of your system. If you head unit

does not have sufficient output, you will get much better results by investing in a line

driver to provide more signal to the amplifier.