Another question on Blaupunkt amp etc
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Joined: Oct 2002
Posts: 11
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From: Bath, UK
Another question on Blaupunkt amp etc
I've been reading the thread below with interest, as it answers a few questions that had been bugging me. My audio sounds terrible, and I'm pretty sure I know why, but I thought I'd just run it by you guys anyway.
I have the 10 speaker setup in a 1990 GT, the Blaupunkt amp is set up and working, but the previous owner replaced the head unit with a perfectly reasonable Pioneer CD player.
The bass is pretty ropey, and turning the volume up results in a very distorted and broken up sound.
Now I reckon it's due to the way the new head unit has been wired in: it has a pair of pre-outs, but these have been ignored. The 4 speaker outs from the head have instead been wired to the inputs of the amp. I would guess that, as the head outs are already amplified via the Pioneer internal power amp, the inputs of the Blaupunkt are being overloaded hence the disastrous sound.
I guess an improvement would be made by sending the pre-outs from the Pioneer to the amp, have the amp power only the woofers and connect the front and rear pairs to the amplified outputs of the Pioneer.
Any thoughts on this ?
Marty
1990 928GT
Slate Grey Metallic
I have the 10 speaker setup in a 1990 GT, the Blaupunkt amp is set up and working, but the previous owner replaced the head unit with a perfectly reasonable Pioneer CD player.
The bass is pretty ropey, and turning the volume up results in a very distorted and broken up sound.
Now I reckon it's due to the way the new head unit has been wired in: it has a pair of pre-outs, but these have been ignored. The 4 speaker outs from the head have instead been wired to the inputs of the amp. I would guess that, as the head outs are already amplified via the Pioneer internal power amp, the inputs of the Blaupunkt are being overloaded hence the disastrous sound.
I guess an improvement would be made by sending the pre-outs from the Pioneer to the amp, have the amp power only the woofers and connect the front and rear pairs to the amplified outputs of the Pioneer.
Any thoughts on this ?
Marty
1990 928GT
Slate Grey Metallic
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Joined: Sep 2002
Posts: 131
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From: Sardis B.C. Canada
I am not familiar with how the system is configured in your 928. What did the amp use for inputs originally? If it is a din multi pin plug it would work with the low level signal you'll get onthe Pioneer's rca's Other wise it was probably a high level input and what is happening is the original unit did not use the same type of speaker outputs and you are over driving the input of the amp. Try not using the neg side of the spkr out from the deck and only hooking up the pos. speaker wire to ea. input. Then take just one of the remaining input connections and put it to ground.
Darrin 85 928s 5-speed
Darrin 85 928s 5-speed
