Hertz HDP4 need help

[alex1002 10+ year member]

You can do active. Mids on Channel b goes to 3.5k low pass. tweets on a channel with the x10 switch on Hi pass to whatever.
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What about xover for tweets?

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[alex1002 10+ year member]

Then you can't run active with no way to cut off the low end of the mid. You will have to use the amps HPF there so you won't be able to cut off the top end of the mid. I figured that deck would have a HPF. It's pretty standard these days.

If it truly don't have one then bridge the amp and run passive.

I got the bypass module. If I bridge with this amp. Do I worry about the xover settings?
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[LosIsATool 5,000+ posts]

I got the bypass module. If I bridge with this amp. Do I worry about the xover settings?
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Your deck has a HPF. You can run active. Set it up like I said the first time

 

[evilmonstertruk Premium Member]

What about xover for tweets?

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Tweets on A channel. Mids on B channel
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[alex1002 10+ year member]

Tweets on A channel. Mids on B channel
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I understand that. Why should I set the xover for channel A and what for channel b. You only said the channel b. Do I need to worry about the rcas or they still go in channel 1?
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---------- Post added at 07:51 PM ---------- Previous post was at 07:50 PM ----------

 

Set the high pass on the head unit to 80-100hzSet the low pass on the amp for the mids to 3500ish

Turn on the x10 switch and set the high pass for the tweeters to 3500ish.

That's a good start. Most tweeters will play that, ideally you want to bring the tweeters down to 2500 IF they can do it. Only good ones can. If you lower the tweeters also lower the low pass for the mids the same.

I will try these settings. If anyone got any other ideas please shine in. Thanks
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[evilmonstertruk Premium Member]

I understand that. Why should I set the xover for channel A and what for channel b. You only said the channel b. Do I need to worry about the rcas or they still go in channel 1?
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---------- Post added at 07:51 PM ---------- Previous post was at 07:50 PM ----------

 

I will try these settings. If anyone got any other ideas please shine in. Thanks

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Yea what he said. Tweets on (A) channel. Mids on (B) channel
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[alex1002 10+ year member]

Yea what he said. Tweets on (A) channel. Mids on (B) channel
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Thanks for clarifying. My pioneer max 75w speakers for back should I run them from headunit or get another amp.

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[evilmonstertruk Premium Member]

Thanks for clarifying. My pioneer max 75w speakers for back should I run them from headunit or get another amp.

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Headunit if you want to keep them. You will find if you keep them hooked up that you either won't notice them or they will sound wierd. Rear speakers are a no no for SQ. And they usually just don't sound right anyways.
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[LosIsATool 5,000+ posts]

Yeah just unhook them. You don’t have the processing to run rears right. Get the front right and it will be plenty loud. But just sticking speakers in won’t work to well.

 

[alex1002 10+ year member]

Good Morning!, I tried to do the hookup and now the twitter they give a really high pitch like screaming almost sound.

 

[LosIsATool 5,000+ posts]

Good Morning!, I tried to do the hookup and now the twitter they give a really high pitch like screaming almost sound.

Bad ground or high gains.

 

[alex1002 10+ year member]

Bad ground or high gains.

Ground is very solid. What else do you suggest?

 

[LosIsATool 5,000+ posts]

Solid maybe. But how’s its resistance.

Btw, I said 2 things in that post

 

[alex1002 10+ year member]

Solid maybe. But how’s its resistance. Btw, I said 2 things in that post

What gain to set to?

 

[LosIsATool 5,000+ posts]

What gain to set to?

Gain it to match the source preout voltage. If you have 4v preouts the gain is set to 4v.

You will get 4v at full volume from the source. The amp will be at it’s full power at full volume.