Advice on current system. DIY infinity etc

[DemiSlayer]

Ok so I am going to put together a better system and would like some advice.

recently aquired a pair of polk rti-a9 and rti-a7
also i purchased a pair of infinity 12vq 4ohm single voice coil subs at an auction they happen to be the 1600watt versions.

looking at the yamaha rx-v2700 as i can aquire one for pennys
would like to bi-amp for the fronts (rti-a9s)


looking at running 2 behringer ep2500
Behringer ULTRA-DRIVE PRO DCX2496 for bass control

build custom diy encolsures for the infinity 12vqs for LFE output mainly

the setup is mainly for HT and gaming though i do like to play music alot!

i love deep low bass will this create enough? also do i need to run a dedicated 20amp circuit to this setup?
Thanks.

 

[DemiSlayer]

I am honestly excited about home audio again. i had no idea these infinity subs where that good they have been sitting here for some time.

 

[mike c]

yes, having a dedicated circuit be good for your dual EP2500's ...

if you are going for the ported kappa design, then yes, you're gonna get plenty of 20hz output.

let me move this thread to the DIY forum

 

[WmAx]

Be certain to use subsonic filters under the tuning frequency of the port, especially when using that much power in a ported system.

-Chris

 

[DemiSlayer]

is the yamaha rx-v2700 going to be a good sound quality option when bi-amped to the rti-a9's i am also looking at a Denon AVR-3808CI 7.1-Ch A/V as it needs repairing and i know how to do that. Thanks!

 

[DemiSlayer]

dcx2496 just purchased now trying to locate 2 ep2500's

 

[Haoleb]

I know that this place has a good reputation, And they will also match anyone else's price.

http://www.zzounds.com/

 

[DemiSlayer]

cant seam to find any 8lbs rock wool or oc705 anywhere. are there any substitutes or does anyone have any i can purchase? Thanks.

 

[annunaki]

Try looking at www.mcmaster.com do a search under mineral wool. They have many different options.

Also, pm Avaserfi as he has access to some at a pretty good price.

 

[WmAx]

dcx2496 just purchased now trying to locate 2 ep2500's

You don't really need two EP2500s. One will be just fine, with 650 clean watts to each Kappa Perfect driver in a proper ported enclosure system. As an alternative to two Ep2500s since you want to spend that much, is to get a Yamaha P7000S. It has no fan noise to contend with, and it will output a clean nearly 1000 watts x 2 into 4 Ohms, both channels driven, 20Hz-20,000Hz. This is enough power for most subwoofer drivers in existance, and then some.

-Chris

 

[DemiSlayer]

just want to make sure i have enough power to fill the room. honestly i havnt built anything of this magnitude or know how it will sound. I have been into car audio for many years and have just started the home audio.

 

[DemiSlayer]

DCX arrived, wood is cut for one box, found some whool that i am going to purchase "thanks chris" two behringer ep2500 amps purchased now trying to find an amp for my rti-a9 front pair i might get a third ep2500.

also ordered ecm8000 mic ub1002 pre amp and external sound card. so i am all setup with trueRTA etc.

I also got a yamaha htr-5890 receiver that is broken of which i am going to repair.

now i need to find speaker wire and interconnects. as well as some cheap aqustic panels.

 

[Matt34]

DCX arrived, wood is cut for one box, found some whool that i am going to purchase "thanks chris" two behringer ep2500 amps purchased now trying to find an amp for my rti-a9 front pair i might get a third ep2500.

also ordered ecm8000 mic ub1002 pre amp and external sound card. so i am all setup with trueRTA etc.

I also got a yamaha htr-5890 receiver that is broken of which i am going to repair.

now i need to find speaker wire and interconnects. as well as some cheap aqustic panels.

Sounds like it's coming along, anxious to see the final results.

What sound card you go with?

 

[DemiSlayer]

I went with an external soundblaster 5.1 card that was highly regarded though i purchased it before i realized there where problems whith it and VISTA though i think i will be able to get it to work.

Cant wait to finally align my car setup as well.

I think i might tap into the power circuit that goes to the spa in the back yard to power all of this unfortunatly the main circuit box is on the oposite side of the house as the theater room.

i also need to find a rti-a7 speaker to match the other one i have that will be used for surround side speakers.

 

[DemiSlayer]

ok so i picked up a DENON POA-2400 for a good price locally. it is rated 200wpc continuous at.002 thd and dynamic of 700wpc at 1ohm. hopefully this will be enough to fill the room with the 8ohm rti-a9 drivers.

 

[DemiSlayer]

Ok so i connected my polks to the DENON POA-2400 and pluged it into my external usb soundblaster turned it on and WOW what an improvement even without a pre-amp yet.

bass seamed to be pretty low though could be a driver issue.

so far very impressed with this old school amp!!!

 

[DemiSlayer]

Update

Update: Most of the equipment has arrived all except one ep2500

also i picked up a denon 3806 as i havnt repaired the htr-5890.

so far the sound quality and bass has been amazing.

just need a couple cables and odds and ends to finish up the subwoofer enclosures.

 

[WmAx]

Update: Most of the equipment has arrived all except one ep2500

also i picked up a denon 3806 as i havnt repaired the htr-5890.

so far the sound quality and bass has been amazing.

just need a couple cables and odds and ends to finish up the subwoofer enclosures.

It was never clarified: are you building the avaserfi slot port cabinets for these?

If so, you will be in for a surprise, so far as the extended LF output, complete transparent bass quality at very high levels.

-Chris

 

[DemiSlayer]

the following is a link to the enclosures i am going to build

http://forums.audioholics.com/forums/showthread.php?t=45528&highlight=simple+midq

 

[DemiSlayer]

Update: everything is aquired except some wood for the second box.

i have finished the first box except for bondo paint etc. I must say this thing is HUGE! alot bigger than it looks on the picture. I am going to hook it up as i cant wait to bondo it.

I am going to use one of the amps in stereo to feed 700watts to this sub so i can make sure everything runs ok before i bridge it.