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  1. New Pioneer head unit: Amp takes 15 minutes to power on

    Technical & Advanced Car Audio Discussion
    Hi, I replaced the Pioneer head unit in my boat. The last head unit worked fine but I wanted to upgrade to blue tooth. After turning the key, my head unit powers on, I can see my BT audio playing on the screen, but the power light on my amp is off and (obviously) no sound. I've got the blue...
  2. Zapco DSP-z6111 and older DC Reference amps

    Technical & Advanced Car Audio Discussion
    I have recently purchased a Zapco DSP-Z6III and have several older DC Reference amps that only have the Symbilink inputs. I have (2) 1100.1's, (2)750.2's, (4) 500.1's and a 650.6, the DSP has rca outputs. What is the best way to put the dsp into the mix? Do I just use the symbilink transmitters...
  3. Zapco HDSP-Z16 V - Delay Page

    Technical & Advanced Car Audio Discussion
    Question about setting the Delay on the Zapco HDSP-Z16 V DSP In the Delay section of the Owner's Manual, two seemingly contradicting examples of setting the delay are shown. The first example on pg 26 shows what makes sense to me: you input the distance to each speaker, relative to your seated...
  4. *** Zapco DSP Z8 iv ii ***

    Car Audio Classifieds
    I will be pulling this out in the next couple of weeks to upgrade to the HDSP V. DSP has been installed for about 6 months. Harness included is brand new along with the controller cable. I also have a iPhone r-iv iphone controller for sale and will make a deal if the iPhone r-iv controller is...
  5. (Sold) FS: DSP - Arc Audio PS8 & Zapco DSP-Z8III

    Car Audio Classifieds
    I have for sale 2 different DSP processors. Zapco DSP-Z8III Condition: Brand new never hooked up or installed 10/10. Software included in box on mini-CD Price: $225 shipped within the 48 Continental US. Specs: 6 Hi-Level or Low Level Inputs, 1 Optical Input, 1 Stereo Aux input 8 Outputs...
  6. FS: Zapco 1650XMII & ST-6X SQ, JL ZR800's

    Car Audio Classifieds
    I have the following for sale to a good home! ;) $250 Zapco ST-1650XMII in near mint condition, no scratches, with box and all accessories. Has one very tiny smudge in the upper right of the amp that I couldn't get to photograph well so I gave up. $300 Zapco ST-6X SQ in pretty much mint...
  7. SOLD

    Car Audio Classifieds
    For Sale - Zapco 400.2AP - Mint Condition Price - $750.00 - Includes Shipping. We split the PayPal Fees Condition - 9.5 out 10. Review all pictures. It comes with Factory Box. It will be packed well for shipment. Ask all the questions!
  8. Zapco Z300S2VX - beautiful

    Car Audio Classifieds
    I'm selling a beautiful amplifier that is in great condition and 100% functional. I don't want to sell this at all but I'm just not using it and am putting together some money for a vacation this year. This is the same as the Studio 300. These are wonderful highly sought after amplifiers. Price...
  9. SOLD!!!

    Car Audio Classifieds
    Item - Zapco Z-2KD II Monoblock & Zapco Z-BR II Remote Bass Control Price - $750.00 (Price Includes Shipping via FedEx Ground) Going with a different setup. PM all the questions you have.
  10. SOLD!!!

    Car Audio Classifieds
    Zapco Z2KDii w/ Remote - Brand New Price $750.00 Shipping via Fed Ex Ground (direct signature required), PayPal fees are included. Lower 48 states only.
  11. Zapco ST-6X DSP amplifier review with testing

    Member Reviews & Product Comparisons
    Over the past two weeks I have both installed and uninstalled the Zapco ST-6X DSP six channel amplifier. My access to the amplifier is due to my having installed it (and a companion Zapco ST-2000xmII) in a friend’s car, only to remove it six days later. I’ll try to keep this review objective...
  12. Amp suggestion

    System Design: Help Me Choose Equipment For My Car
    Looking for an amp suggestion to finish off build. Here is what I have at the moment: Alpine PDX-V9 will run 3" + 6.5" and subs Focal PS165F3 (Flax) w/tweeters and 3" mids in A pillars, 6.6" in doors w/fast rings JBL GTO (can't remember model)or Hertz ESK165 comps in rear doors (I have both sets...
  13. Zapco C2k 9.0xd and Sx Sl ii problems

    Technical & Advanced Car Audio Discussion
    I just switched back from an arc ps8 to my sx sl 2. Running a McIntosh mcc404 for mids and tweets, full range out 2 from eq, using the mac crossovers. McIntosh MC420 for the mid bass, using the eq's out 1 bandpass crossover. Zapco c2k 9.0 for the sub, using eq sub out Initially, everything...
  14. Zapco C2k 6.0 for parts

    My damaged c2k amp i have listed.
  15. Zapco DC500.1 DPN firmware issue?

    General Car Audio Discussion
    OK, so I've had a Zapco DC500.1 for several years now that I bought in preparation for the planned system on my next car. I had no idea that my car search would take so long, but I finally found the car I was waiting on and got my system installed. I was able to install DPN v1.41 and get it...
  16. Help choosing upgrade amp

    Technical & Advanced Car Audio Discussion
    I currently have 2 sets of Helix Percision 6 1/2 components in my car (1 set in the front doors and 1 set in the rear doors). I am currently using a Helix Percision H400X. I am looking for a replacement amp that would be a step up or two. I understand that there is mosconi, Arc Audio, etc...
  17. WTB ZAPCO AP or LX Amplifier (4 or 6 channels) with International Shipped (New/Used)*

    Car Audio Classifieds
    WTB ZAPCO AP or LX Amplifier (4 or 6 channels) with International Shipping (New/Used) Product Brand & Model: I am looking for either a 4 or a 6 channel amplifier from Zapco brand, LX or AP series. I will pay for the shipping and cost of the item using PayPal (gift money is not available in...
  18. Zapco Z-150.6LX

    Car Audio Classifieds
    WTB: Zapco Z-150.6LX or Z-150.4LX Product Brand & Model: Zapco Z-150.6LX or Z-150.4LX Condition of all items: Good Total Price: : TBD Paypal payment. Shipping Terms: : Fed-ex or UPS preferred, no USPS. Pictures: - Unless you are a Upgraded member, or your last 10 iTrader feedbacks...
  19. FS: ZAPCO REFERENCE 750 (175x2/750x1) - GREAT VALUE

    Car Audio Classifieds
    Product Brand & Model: ZAPCO REFERENCE 750 An excellent value amplifier that is perfect for running: components, a pair of midbass drivers, or bridged for a sub! Conservatively rated and original birthsheet measurements showing headroom will be included, along with original manual. Power...
  20. Full Old School Zapco C2k System for sale

    Car Audio Classifieds
    Product Brand & Model: 1. Zapco C2k 9.0 2 ohm w/ brand new never used vfd screen and control knob 2. Zapco c2k 6.0 4 ohm version 3. Zapco c2k 6.0 2 ohm version 4. Zapco sx/sl 2 eq w/ power cable (no power supply) 5, 4 sldin.t transmitters, 2 18' symbilink to rca cable, various other symbilink...