Zapco - The Z- Series

The new Z-Series of SQ amps was not conceived so much by our engineers but by input from audiophiles and car sound fanatics around the world.

Starting about 2004, at Zapco training seminars in Asia and in the EU, we began running into audiophiles who were changing certain internal components in our amplifiers to achieve what they felt was better quality sound.

The seed of an epiphany was planted one day in a heated discussion about amplifier specs when a highly respected audiophile said "maybe your amps are too fast".
Our reaction was immediate. Too fast? Ridiculous! An amp can't be too fast. But, as time went on, we began to discuss the possibility that we had chased the specifications to the point that we were no longer improving the sound.

The Zapco Z - Series A/B Class our newest Sound Quality amplifiers

Z-150.2 - 2 Channel SQ Amplifier

The Z-150.2 gives you 150 Watts of true Zapco power into two channels with the fidelity you need in the SQ class amplifiers.

-Class-AB bridgeable 12V amplifier
-2/1 channel bridgeable 12V amplifier
-Stable into 4 ohms bridged or 2 ohms stereo load
-PWM MOSFET power supply
-Variable input sensitivity
-18dB octave crossover slope
-Variable FULL / LP / HP Electronic Crossover
-0dB, 6dB, 12dB selectable bass boost
-RCA Signal input and output connectors
-4-way protection circuitry
-(thermal / over current / speaker short / DC)
-Tested voltage & THD: 14.4V & less than 0.05% THD at rated power
-Operating voltage : DC10V~15.5V power input
-Wired remote control (optional)
-Dimensions in Inches : 7.5(W) x 3(H) x 13.25(L)

Stereo, 4 ohms: 2 x 150 Watts
Stereo, 2 ohms: 2 x 250 Watts
Bridged, 4 ohms: 1 x 500 Watts
T.H.D. + Noise: <0.05% @ 4 ohms.

Specifications:

Z-150.4 - 4 Channel SQ Amplifier

The Z-150.4 gives you 150 Watts of true Zapco power into four channels with the fidelity you need in the SQ class amplifiers.

-Class-AB bridgeable car amplifier
-4/3/2 channel bridgeable car amplifier
-Stable into 4 ohms bridged or 2 ohms stereo load
-PWM MOSFET power supply
-Variable input sensitivity
-18dB octave crossover slope
-Variable Full / LP / HP Crossover
-Variable bass boost
-RCA signal input and output connectors
-4-way protection circuitry
-(thermal / over current / speaker short / DC)
-Tested voltage & THD: 14.4V & less than 0.05% THD at rated power
-Operating voltage : DC10V~15.5V power input
-Wired remote control (optional)
-Dimensions in Inches : 7.5(W) x 3(H) x 18.75(L)

Stereo, 4 ohms: 4 x 150 Watts
Stereo, 2 ohms: 4 x 250 Watts
Bridged, 4 ohm: 2 x 450 Watts
T.H.D. + Noise: <0.05% @ 4 ohms.s.

Specifications:

Z-150.6 - 6 Channel SQ Amplifier

The Z-150.6 gives you 150 Watts of true Zapco power into six channels with the fidelity you need in the SQ class amplifiers.

-Class-AB bridgeable car amplifier
-7/6/5/3 channel bridgeable car amplifier
-Stable into 4 ohms bridged or 2 ohms stereo load
-PWM MOSFET power supply
-Input sensitivity (gain) control variable
-18dB octave crossover slope
-Variable Full/LP/HP selectable crossover
-(CH1/2/3/4)
-Variable Full/LPF Selectable crossover (CH5/6)
-Variable bass boost (CH5/6)
-Variable subsonic (CH5/6)
-RCA signal input connectors
-4-way protection circuitry
-(thermal / over current / speaker short / DC )
-Tested voltage & THD: 14.4V & less than 0.05% THD at rated power
-Operating voltage : DC10V~15.5V power input
-Wired remote control (optional)
-Dimensions in Inches : 7.5(W) x 3(H) x 23.75(L)

Stereo, 4 ohms: 6 x 150 Watts
Stereo, 2 ohms: 6 x 230 Watts
Bridged, 4 ohms: 3 x 450 Watts
T.H.D. + Noise: <0.05% @ 4 ohms.

Specifications:

Z-400.2 2 Channel SQ Amplifier

The Z-400.2 gives you 400 Watts of true Zapco power into two channels with the fidelity you need in the SQ class amplifiers. .

-Class-AB bridgeable 12V amplifier
-2/1 channel bridgeable 12V amplifier
-Stable into 4 ohms bridged or 2 ohms stereo load
-PWM MOSFET power supply
-Variable input sensitivity
-18dB octave crossover slope
-Variable FULL / LP / HP crossover
-Variable bass boost
-Signal input and output RCA connectors
-Multi-way protection circuitry
-(thermal / over current / speaker short / speaker DC protection)
-Tested voltage & THD: 14.4V & less than 0.05% THD at rated power
-Operating voltage : DC10V~15.5V power input
-Wired remote control (optional)
-Dimensions in Inches : 7.5(W) x 3(H) x 20.25(L)

Stereo, 4 ohms: 2 x 400 Watts
Stereo, 2 ohms: 2 x 670 Watts
Bridged, 4 ohms: 1 x 1340 Watts
T.H.D. + Noise: <0.05% @ 4 ohms.

Specifications:

Z-1KD - Linkable Dual / Mono Amplifier

The Z-1KD amp gives you some amazing power to drive your system while keeping the specs of an SQ class amplifier.

-Digital class-D linkable mono block amplifier
-Daisy-chain pass-through RCA output
-Dual MOS-FET PWM power supplies
-Stable into 1 ohm / 2 ohm parallel speaker connection
-24 dB Variable low pass (LPF) crossover
-12 dB Variable bass boost equalization
-0 - 180 degree variable phase shift
-24 dB Variable subsonic filter
-Selectable master and slave operation for strapped amplifiers
-Speaker short, over current, thermal, and DC protection circuits
-Line input and master output / slave input
-Heavy duty cooper layer double sided epoxy PCB
-4 Guage (AWG) battery input connectors (Z-1KD)
-0 Guage (AWG) battery input connectors (Z-2KD/3KD)
-100% QC testing and warm up
-Efficiency: 86% at 4 ohm, 100 Hz
-Tested voltage & THD : 14.4V and less than 0.5% THD at 4 ohm RMS watt
-Operating voltage: DC 10V ~ 16V power input
-Damping factor: > 350
-Wired remote control (optional)
-Dimensions in Inches : 7.5(W) x 3(H) x 12.25(L)

Mono, 4 ohms: 1 x 300 Watts
Mono, 2 ohms: 1 x 560 Watts
Mono, 1 ohm: 980 Watts
Bridged, 1 ohms: 1 x 1700 Watts
T.H.D. + Noise: <0.5% @ 4 ohms.

Specifications:

Z-2KD - Linkable Dual / Mono Amplifier

The Z-2KD amp gives you some amazing power to drive your system while keeping the specs of an SQ class amplifier.

Mono, 4 ohms: 1 x 570 Watts
Mono, 2 ohms: 1 x 1100 Watts
Mono, 1 ohm: 2050 Watts
Bridged, 2 ohms: 1 x 4100 Watts
T.H.D. + Noise: <0.5% @ 4 ohms.

Specifications:

Z-3KD - Linkable Dual / Mono Amplifier

The Z-3KD amp gives you some amazing power to drive your system while keeping the specs of an SQ class amplifier.

Mono, 4 ohms: 1 x 900 Watts
Mono, 2 ohms: 1 x 1800 Watts
Mono, 1 ohm: 3000 Watts
Bridged, 2 ohms: 1 x 5700 Watts
T.H.D. + Noise: <0.5% @ 4 ohms.

Specifications:

For example: If people cannot hear the effect of damping beyond about 200, why do we take it to 1000, or even higher? How does taking specs to the extreme effect other aspects of sound?
So for the new Z-Series of Zapco amplifiers, we experimented with internal components to see if we could take out amps to the next level of sound quality by investing in different internal components. How much would different component choices affect the overall sound quality?

What we found was that electrolytic caps, mylar caps, and tantalum caps all sound different. Different Op-Amps sound different...even if they have the same engineering specs. Output devices all sound different even though they put out the same voltages. Even the layout of components on a board will affect the sound of an amplifier. And ultimately, we found that different combinations of Op-amps, capacitors, and output devices allowed us to make a major difference in the sound quality of the amplifiers without changing the specs.

The Zapco Z-Series amplifiers use the best combination of NJM5532L and OPA2134 op-amps, Tantalum capacitors, and high speed KEC and Sanken output devices to bring you what we believe are the best sounding amplifiers we have ever offered.