3 amps of off sub preout???

[LBX2G 10+ year member]

what do u need frontstage bass. I thought bass was indirectional.

 

[bonesninja 5,000+ posts]

thats offtopic----i'm experimenting btw.

 

[DBfan187 5,000+ posts]

Alpine CDM-7871 Description

• 45W x 4 MOSFET Amplifier
  
• MaxTune Tuner
  
• Regulated 1-Bit DAC
  
• Detachable Face
  
• Bass Width & Treble Center Adjustment
  
• Swing Mechanism
  
• BBE Processor
  
• Dual-Color Display with Level Meter
  
• CD Text
  
• Versatile Link Ready
  
• Wireless Remote Control Ready
  
• 4 Volt Subwoofer PreOut
  
• 3 PreOuts
  

Why don't you use the subs preouts for the Vipers and the rear or front preout for the Pioneer?

Seems to be the better, more easier way

 

[bonesninja 5,000+ posts]

because the front and rear outs are occupied by the rest of my speakers amp.

 

[InhumanAcura 5,000+ posts]

FYI a strapped pair is much more unstable than a running them seperately...

Just run the RCA's to Viper A then use the pass throughs to go to Viper B, then use those pass throughs to go to the Pioneer...

We've ran 2 strapped pairs of X-fires off 1 set of pre-outs w/o problems...

 

[forbidden 10+ year member]

Am I correct to assume that the 6W0 is going to be on the Pioneer amp for the up front bass? If so this creates a major issue, the 12's are going to have way more amplitude than the 6" is. The 6" can play as deep a bass frequency but it cannot do it with anywhere near the same amplitude. This means that to properly use this system do not use the 6W0 as a sub bass driver, use it as a midbass driver. You will need a crossover with bandpass abilities and run it off of the front preout to do this properly.

 

[InhumanAcura 5,000+ posts]

Why don't you use the subs preouts for the Vipers and the rear or front preout for the Pioneer?

Seems to be the better, more easier way

Dont do that...

 

[DBfan187 5,000+ posts]

because the front and rear outs are occupied by the rest of my speakers amp.

Does that speaker amp have line out RCAs? If so, I'd use it for the Pioneer. Use the sub outs for the Vipers. Daisy chain them?

 

[bonesninja 5,000+ posts]

ok that sounds like it works to me--thank you

 

[bonesninja 5,000+ posts]

Does that speaker amp have line out RCAs? If so, I'd use it for the Pioneer. Use the sub outs for the Vipers. Daisy chain them?

nope no line out on that amp.

 

[InhumanAcura 5,000+ posts]

Does that speaker amp have line out RCAs? If so, I'd use it for the Pioneer. Use the sub outs for the Vipers. Daisy chain them?

That 6W0 is a sub, not mid-bass. The Front and Rear Pre-outs are not for subs...

 

[DBfan187 5,000+ posts]

Dont do that...

So you wouldn't hook your sub amp off the subs preouts? Or use the front or rear outs for the midbass?

 

[InhumanAcura 5,000+ posts]

So you wouldn't hook your sub amp off the subs preouts? Or use the front or rear outs for the midbass?

NO...That makes too much sense.

 

[DBfan187 5,000+ posts]

That 6W0 is a sub, not mid-bass. The Front and Rear Pre-outs are not for subs...

http://forums.caraudio.com/vb/showthread.php?t=80592

btw--this sub will be specifically tuned to play from 120hz-275hz.i called jl and they said the cutoff for this model was at 300hz max.

it could be.

 

[forbidden 10+ year member]

Any speaker can be a sub, a sub is determined by the range of frequencies it plays. If this little tiny driver is going to be played with sub frequencies at the same time and on the same preout as the larger ported 12's, it is basically going to be a useless effort as the 12's have waaaaaaaaaaaaaaaaaaaaaayyyyyyyyyyy more amplitude at all frequencies. A 6" can and will produce sub bass but in this application would be much happier as a low midbass driver playing from 100 - 250 hz depending on the midbass hump in the car.

Here is the proper way to run it.

Front preout to crossover with bandpass ability.

HP out to front ampl

BP out to Pioneer amp - 6W0

This will limit the range of frequencies it will play and will allow a much more useable range of frequencies at the same time.