Zapco DSP-Z8 IV II with Bluetooth streaming

You can only be as good as your source material, and the DSP-Z8 IV II series greatly expands your potential for the best possible source material.

The Toslink optical input accepts the digital signal from your head unit or from a portable HD player, but the IV II series doesn’t stop there.

The DSP-Z8 IV II units also have digital Bluetooth streaming so you can stream music.  The included Dash Remote means you can change input source, change memory presets, control the master volume and even control the output of your system’s bass amps.

You can also upgrade to the 3” digital touchscreen remote for more control.

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About Zapco - new to New Zealand.


At Zapco, we’ve been doing the same thing in the same place for almost 40 years, constantly searching out innovative ways to bring better sound to the automotive environment. Why do we do it? Nothing else can grab your soul and bring tears to your eyes like music. Music will make you tap your feet, and dance for joy. Of all the arts, music has the most powerful and immediate effect on your body and your mind. Reproducing music in all its glory, and it’s subtleness, and its detail deserves nothing less than our best efforts.

Because Sound Matters.

Committed to Excellence
ZAPCO is dedicated to the pursuit of audio fidelity. Our prime objectives are to design and manufacture audio products of unsurpassed quality, to provide unparalleled support and service for these products and to conduct business in a manner that will enhance the quality of life for all involved.
Experience: Knowledge From Doing
There is absolutely no substitute for experience; that is a simple fact of life. Another simple fact is that ZAPCO has, for over forty-two years, been the leader in defining quality standards for the car audio industry. These years of experience have led to a thorough understanding of the challenges that are unique to the world of car audio. ZAPCO’s relentless quest for sonic purity consistently yields imaginative designs that utilize the most innovative technologies. The resulting products set the criteria by which all others in the industry are judged.

  • DSP Processor: Cirrus Logic CS47048  
  • Power: 150 MHz/32 bit/48 KHz
  • 8-Channels
  • ADC: Cirrus Logic CS5368 24 bit/192 KHz
  • ADC Dynamic Range/THD: 114 dB/-105 dB
  • DAC: Cirrus Logic CS47048 32 bit/192 KHz
  • DAC Dynamic Range/THD: 108 dB/-98 dB
  • Low level (Pre)/Sensitivity: 8/1-5 VRMS
  • High Level (Spk In)/Sens.: 6/2-20 V
  • AUX Inputs/Sensitivity: 1/0.2-4 VRMS
  • Optical IN: 24 bit-192 KHz
  • Output Ch. RCA/Sensitivity: 8 / 4 VRMS
  • Freq. Response (-3dB): 10 Hz - 22.5 KHz
  • S/N Ratio Digital Input: 110 dBA    
  • S/N Ratio Analog Input: 106 dBA    
  • THD+N Digital Input: 0,002 %
  • THD+N Analog Input:     0,005 %
  • Crosstalk at 1 Khz: 90 dB
  • F/R?EQ: 1-6 ch Gr. & Par./31 poles
  • Effect EQ: 7-8 ch Gr. & Par./11 poles
  • Mute/Solo: Yes, each channel
  • Time Align. (Range/Steps): 0/15 ms / 0.02 ms
  • Max Delay (Cm/Steps): 515 cm / 0.68 cm
  • Polarity: 0/180°
  • Display (included): 1” LCD
  • Display (optional): 3” LCD Touch-Screen
  • Bluetooth Streaming
  • PC/Display Connection: USB/6-pin Mini DIN
  • Unit Dimensions: 210(L) x 125(W) x 48(H)
  • Display Dim.: 111(L) x 49(W)  x 16(H)

Of course, it’s the software that lets you get the results you want from all that hardware and we made some major improvements there in both control and features. First, you will now be able to control the Series IV II DSP with your PC or with your iOS or Android smartphone or tablet. Even given the size restrictions inherent in mobile devices you can completely set up your system with Zapco’s mobile app, however the best way is with the single page PC GUI.

Here are some of the new and unique features of the PC GUI. You will see we have put the upgraded touch on just about everything:

1 - The input choices now include Bluetooth for streaming digital music.

2 - The input map lets you choose which input will be used for each output. The system will make default choices for you based on your choice of the input source but can be overridden as needed for your system. 

3 - Just measure the distance from the listening position to each speaker and click Delay Calc. The system does all your signal delay calculations for you, but again if needed you can re-adjust the delay as needed for your individual system

4 - Drop-down menus for each of the 8 output channels allow you to identify each speaker by its function. When you do that, the system will apply default crossovers, so your speakers are always protected.

5 - Linking buttons let you link channels, so you can adjust them together for crossover, delay, and gain level. Simply pick a channel then click another channel to link them together. When finished you can click any channel again and the link is broken. 

6 - We expanded the crossover type to include Linkwitz-Riley, Butterworth, and Bessel,  and the slopes can range from 6dB/octave to 48dB/octave.

7 - EQ link bar allows you to link channels together for equalization. You can link them to adjust them together, then unlink them for minor changes to one channel, then re-link them and they will maintain their relative differences.

8 - The EQ bar tells you everything you need to know while you are tuning. The band you‘re using, the frequency, the level and the Q are all on display here and you can switch between GEQ and PEQ, you can temporarily bypass the EQ or you can reset the channel completely.

9 - It’s easy to get ahead of yourself when tuning 8 channels with 31 bands each, so the shaded the graph portion and left highlighted only the frequencies in the channel you are working on. This will help keep you focused on the frequencies available for each channel.