Possible scenario for active with rear fill

[BCotrell 10+ year member]

So I know everyone says you can't run active with rear with an 80 prs but I found a mechless receiver that might work and wanted to I see what the forum experts thought

JVC KD-X33MBS Digital media receiver for Jeep, powersports, or marine applications (does not play CDs) at Crutchfield.com

That is the receiver, the jvc kd-x33mbs. my 4 channel would be the ppi 900.4 and that amp is known to support active setup.That said, the receiver has three preouts (front, rear, sub). However the 2way crossover settings show there is control of freequency and slope and gain for the tweeter, front, rear, and sub. I inquired further and it was confirmed that there is x'over control for all four vs the standard three on many receivers (front/rear/sub).

With this said and if this info was accurate, could I run tweeters off the the deck and have function to control the crossover frequencies and then use the four channel to power mids in the front (1&2) and mid woofers in the back (3/4) while a separate sub amp powered my sub stage.

Any feedback is appreciated! I know the receiver I'm referencing may not be the ultimate receiver but I have a shallow install space to work with and this is the only one that has 4v Preouts

And a decent eq bands.

Thanks,

Bc

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[Jeffdachef 5,000+ posts]

So I know everyone says you can't run active with rear with an 80 prs but I found a mechless receiver that might work and wanted to I see what the forum experts thought
JVC KD-X33MBS Digital media receiver for Jeep, powersports, or marine applications (does not play CDs) at Crutchfield.com

That is the receiver, the jvc kd-x33mbs. my 4 channel would be the ppi 900.4 and that amp is known to support active setup.That said, the receiver has three preouts (front, rear, sub). However the 2way crossover settings show there is control of freequency and slope and gain for the tweeter, front, rear, and sub. I inquired further and it was confirmed that there is x'over control for all four vs the standard three on many receivers (front/rear/sub).

With this said and if this info was accurate, could I run tweeters off the the deck and have function to control the crossover frequencies and then use the four channel to power mids in the front (1&2) and mid woofers in the back (3/4) while a separate sub amp powered my sub stage.

Any feedback is appreciated! I know the receiver I'm referencing may not be the ultimate receiver but I have a shallow install space to work with and this is the only one that has 4v Preouts

And a decent eq bands.

Thanks,

Bc

having the tweets only on head unit power defeats the purpose of running active. Running active not only means having the crossovers right but it also means getting the time alignment right as well. By having rears, you basically destroyed your soundstage by taking away the ability to time align the tweeters.

If you ever heard a properly setup and powerful front stage, you would not even consider having anything in the rear. Most people never experienced a real setup before and they are stuck with thinking rear speakers will help. You need to get out of that mentality and give running proper active a REAL shot with good efficient drivers and a good head unit to do so as well.

That JVC does not have time alignment nor is it active capable. It just has normal high pass and low pass for sub and mids. It also has cheap and weak DACs which means your music sounds like crap out of the box.

 

[dbjunior 10+ year member]

If your not to concerned 18th time alignment the 80 will do fine to control a set of rears and active xover only front. Have it in advanced mode running high mid and low rca's then run the rear off the mid speaker outputs. I'm not sure if its the front or rear speakers that work as mid. Keeping the rear as mid and not full will help prevent pulling your sound stage to the rear. The only way to run rear and have a full active setup is to get an good 8+ch processor.

 

[BCotrell 10+ year member]

Thus far I've never read you steer someone wrong. I just don't have the space for an 80 prs so I need a shallow receiver. Any recommendations?