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Nakamichi CD35z


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darrenlivermore 
Member - Posts: 1
Member spacespace
Joined: May 03, 2002
Location: United Kingdom
Posted: May 03, 2002 at 3:53 AM / IP Logged  

I have a Nakamichi CD35z head unit, which has 4 speaker outputs and 2 front rca 2volt preouts. I currently have the head unit just wired to 4 sepakers, but would like to add an amp, 2 8" subs in the rear deck, and perhaps power the main speakers (in the front doors in a mazda miata (MX5) with the amp. I have a 2 ohm stable 4 channel amp, 600W max output, but have no idea how best to wire up the system.

What do i do with the speaker leads currently powering the front speakers? how do i wire the amp?

Any help would be much appreciated

Darren

Velocity Motors 
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Moderator spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Fabrication. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spaceThis member has been recognized as an authority in Mobile Security and Convenience. Click here for more info.spacespace
Joined: March 08, 2002
Location: Manitoba, Canada
Posted: May 03, 2002 at 5:04 AM / IP Logged  

What kind of amplifier do you have first ? Most amplifiers out on the market you will do this :

  • take the (+) from channel one and the (-) from channel two to bridge the amplifier. Run your subs in parallel if your amp is capable of handling a resistance of less than 2 ohms. If not run them in series.
  • Run your front speakers in a 4 ohm stereo mode on the amplifier - speaker 1 to channel 3 and speaker 2 to channel 4. Change the crossover to full or HP

Some amplifier companies require different hook ups for bridging so you will have to read up on your manual for proper connections before attempting this.

Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
wirewise 
Moderator - Posts: 489
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Joined: March 07, 2002
Location: California, United States
Posted: May 03, 2002 at 8:11 AM / IP Logged  
Hey Darren, do as Velocity said, connect two channels of the amplifier to your front speakers and bridge the other two to your subs. Insulate the front speaker leads of your head unit and if you like you can leave the rear speakers connected as they are now. Depending on the 4 channel amplifier you have you may or may not need an additional crossover. Use your front preouts to the crossover, then high pass out to the amplifier inputs of the channels driving your front speakers and low pass out to the amplifier inputs of the channels running your subs....btw, what amplifier are you using??
    
~wirewise~ Verify all wiring with your meter before making any connections!

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