ok guys..

i have recntly got me an Alpine H700 processor (to run with a 9811) and i am currently at a little delimma..

I have a set of Dynaudio System 240GT which i will be running active off 2 amps, an LRx2.500 (mid bass) and an LRx2.150 (tweets).. i was gonna set it up so that the processor controls the speakers and add in the phase and time alignment, and bypass the amps controls..

i have a chance to get some mids and make a 3 way front stage.. the ampage isnt a problem as i'll get another 2.150 but running them is..

how can i run a 3 way front stage actively off the H700?? or cant i??
how can i do it??
will i have to use the amps and run the mid-range/tweets passively using the crossovers?

how i was thinking of doing was run the mid-bass off 1 set of outputs and split the high outputs to the 2 amps.. can that be done?

any opinions would be appreciated..

damo, i'd probably suggest running the front woofers off separate front channels from the H700, then splitting the signal from the other 2 front channels into 4 channels (via Y-splitters) to the mid/tweeter amps.

however, this'll depend on the xovers available. to BP the midrange, you'll be able to use the HP from the H700, but then the amp will need a LP around 2~3kHz. does the LRx cater for that (i'm not familiar enough with the amp)? likewise, HP for the tweets around 2~3kHz.

alternatively (as long as the amps have filters reaching as high as 2~3kHz), you can feed the midrange amp from the H700, then use the reciprocal RCA outputs on that amp to feed the tweeter amp.

this of course presumes that you'll mount the tweets and mids close together. that way, you can successfully time align them together (as opposed to say having tweets up on the dash, necessitating a different TA to the mids down low). otherwise, run the woofer and mid from 2 channels, and the tweets of the other 2 separate channels.

Dont worry Damo, its a simple problem, easily solved.

The H700 only provides a 2 way front crossover(front1 and front2)

You can still run a 3 way front if you want, simply use the rear preouts in addition to front1 and front2 instead.

This is of course assuming you are not using yout h700 as a dvd processor hehe.

If you still want rear speakers, use the 9811's internal amplifier for the rear speakers and control the fader from the head unit itself.

Cheers

hmmm..

that sounds like a not bad idea Honour77..
Nup, no DVD Processor involved..

and i already have the 3 amps as well..
how i was gonna set it up is as follows..
LRx2.500 - Dyn mid-bass
LRx2.150 - Dyn tweets
SRx2 - rears..

i could still use them amp then?? but have..
LRx2.500 - Dyn mid-bass
LRx2.150 - Dyn mid-range
SRx2 - Dyn tweets??

i need some more confirmation before i go ahead and get them mids.. but 3 way fronts would be awesome.. i am rebuilding the pods anyway..

3-ways using the dyn mids would definitely be an upgrade worth considering. i've found with my passive 2-way dyn system240 that the main lacking eliment is the midrange, followed by the treble.

as such, dyn midranges are my next upgrade (together with new tweets), and have always been part of the overall plan.

how you utilise the H700 to tune it all is probably a lesser consideration. but i like honour's idea which should work nicely for your needs.

good luck damo.

Damo, if you really want to amp your rears, use the rear preouts from your 9811 and control the fader from the 9811(rather than the H700). Personally i dont think it'll bother you at all since a processor like the H700 is mostly 'fire and forget' in the sense you usually will set it once and then leave it alone.

What you will lose from this though, is the ability to use the H700 processing options on the rear speakers since they are 9811 controlled. Which probably means you'll only have some TA and maybe a highpass crossover and small EQ options, depending on the processor featured on your 9811(not very familiar with this model). I dont think it should matter much, because its rear speakers anyway!

I wouldnt worry too much about being able to go with the setup you're talking about, at least as far as rear speakers are concerned. You even have shiny's stamp of approval!

I'm with shiny, i say amp the 3 ways, and forget about the rear fill if you must have rear fill, use the 9811's built in amplfier(seriously, you lose nothing by doing this). Cheers damo

[ December 31, 2003, 04:40 PM: Message edited by: honour77 ]

Make it easy

Go out and buy and AudioControl 4XS

I do SFA about that alpine processor so I am not sure of its capabilities.

he will actualy lose all processor function on the HU including time alignment and x-over once he connects the H700 so he can't make use of them at all.

[ January 01, 2004, 05:44 PM: Message edited by: JohnA ]

i agree with this as well. on the side of the head unit (well at least with my 7998r) i have to flick a little switch when using a eq/processor. this stops any output from the deck(i.e. rca's) and sends all output via my optical cable and ai-net.

i dare say the 9811 is the same