CECAA850

I'm also toying with the idea of dual down-firing... ---------------- It seems to work for SVS Looks like a fun project.

Your sub integration with your system will be more affected by where you place it than the 1/2" wall protrusion. I can't imagine it affecting anything.

You asked for it. You've got a 100" screen and allmost 4000 cu.ft. of area to fill with bass. You need to set your sites a little higher than the subs you currently have on your short list. Besides the center channel speaker, your sub is the most critical speaker in terms of making your HT experience an "experience". DON'T SKIMP ON THE SUB! Look at a RSW12 (minimum) or some of the comperable offerings from SVS or HSU. Now, if you like to build things............... Oops, Welcome to the forum! Carl

---------------- Bigger is NOT always better! ---------------- I'll bet you've never used that line before .

I don't know of any 18" driver that doesn't cost less than twice the corresponding 15" driver. So basically, you can purchase two 15" drivers for the price of one 18" and end up using the same size cabinet. That said, most 18" drivers out there that are available to the DIY world are geared strictly towards PA use...which means they drop fast below 30Hz, but do give you insane SPL. There's no need to exceed 120dB in the home let alone 130dB, so it's totally a worthwhile compromise to sacrfice SPL for lower extension. Ascendand must be the exception to the rule. The normal price for the 15 is 75% of the 18. The sale price of the 15 is 82% of the 18. The Avalanche 18's Fs is 16Hz, but yes, the majority of 18's are as you described.

Check out Ascendantaudio. Their Avalanche 18's work great in Home applications. I have some in an IB.

Don't forget the warranty goes with the sub, fully transferrable at no charge.

Believe it or not, the easiest thing to do would be to move the speakers. I would need to bring the 7's to the bedroom to see how they sound. The problem there is I still wouldn't know if it was the amp or the room as the 7's would be in the room where the 5's sound good with the amp that the 5's sound good with. To bring the Carver into the living room would be the most practical as someone earlier suggested. That would involve moving the amp, preamp and cd into the living room. It is currently housed in a unit next to the bed. That set up will come out the front but will still be a PITA. I guess I just talked myself out of moving the speakers as the only thing I would find out is the limits of my back.

Basically, I, in my infinite wisdom, bought the biggest receiver that would fit in our 3 piece oak entertainment center. So big that it will only fit in from the backside, which means about a 4 hour emptying and disassembling procedure to get the receiver out or disconnected. One of my more brilliant moves, if I do say so myself. I never talked about the differences in sound. The HK/7 set up lacks a well defined soundstage and the mids are clear but somethings just missing. Treble is.....OK. The Carver/5 combo gives the sound that Klipsch is famous for. Lots of definition, a soundstage that extends well beyond the width of the speakers themselves and crystal highs.

This is one of those questions that you kinda get the feeling you know the answer to but ask it anyways. It's a little bit long so maybe I should start with..........Once upon a time I had a pair of RF-5's hooked up as L and R ft speakers in a 7.1 set up. They were being driven by HK's flagship receiver (at the time) the AVR-7200. S&V measured it in the 2 channel mode at over 190 wpc. All was good in my HT till the upgrade bug hit and I gave in to the RF-7's siren calling. What to do now with the RF-5's? Bedroom here we come. I had a Carver 100 wpc amp with matching pre-amp I bought new in the '80(?)'s. I was all set. Both systems use fairly comperable CD players. The 5's are relatively close to the corners of the bedroom whereas the 7's are away from the corners in my HT (living room). The bedroom is large as far as bedrooms go but not as large as the living room. BR has a vaulted ceiling and LR has a peaked ceiling. Got it? O.K. my question. The 5's sound so much better than the 7's that I find my self listening to 2 ch in the bedroom more than the living room. Would the concenses think the difference could be more attributed to the room or the amp? Sure I could lug speakers around the house and find out for sure but it's more fun (and easier) to get some thoughts. Sorry for the long post. Carl

I've had one replaced under warranty at no charge to me.

4 Avalanch 18's in an Infinite baffle. http://www.f20.parsimony.net/forum36475/

DuubleJ, check out the FAQ at the Cult. http://www.f20.parsimony.net/forum36475/ Carl

---------------- On 6/15/2005 9:44:31 AM sivadselim wrote: "action"? does that mean extension? ---------------- Extension AND output.

milkshake

Yes, it'll make a difference. Do NOT use DVE as your test disk as the sub section is way off. Also, be sure to use the correction chart when calibrating your sub as the lower frequency responses are not correct. Using the chart gives fairly accurate (for the price) results. As a bonus, you can set your other speakers up with the meter. If your whole system is set up by ear, you'll be in for a treat when you hear it all calibrated correctly.

IB bass doesn't travel any further than bass from a traditional box sub at the same SPL. I actually have less annoying buzzes throughout the house with my IB than I did with my previous box/tube setup. The IB is located near the ceiling now and my old subs were on the floor, that may have something to do with it . Lack of a resonating box may contribute also.

Sounds like the driver bottoming out. Did you set your system up with a disc like AVIA and an SPL meter? If you are running it by ear, you may have it set up too hot. Welcome to the forum! Great sub by the way.

Most would tell you to try it large and small and see which one you like best, not bad advice. IMO however, the RC-25 should be set to small and x-overed at 80. It will really strain in the large setting.

2 feet over your heads elevation in the seated position, slightly behind you. Welcome to the forum!

Here's some reading for you. http://www.audioholics.com/FAQs/THXp2.html

Erik, you have to do what the room dictates. In a perfect world however, THX recomends putting the side surrounds a couple feet behind the listener and 2 feet over the listeners head level in the seated position. Carl

I just finished my IB. Well.....all but the trim. I used 4 Avalanche 18's and a Behringer EP-2500. I haven't put the BFD inline yet, so it's not EQ'd. Even still, it's pretty impressive. The SQ is unbelieveable. The Eagles live CD "Hell Freezes Over" Hotel California track starts out with a kick drum. My SVS's put out bass that sounded like Godzilla was in the house when I cranked it up. Very impressive. With the IB on the same track now, same level it sounds like I'm inside a huge kick drum. And movies......... fugeddaboutit. The Incredibles at totally uncomfortable listening levels doesn't come close to bottoming it out. I haven't got the stones to see what It'll do, but maybe soon.........

For most people, an IB gives you cleaner, lower sound for less dollars than any commercial cub, internet direct or otherwise. If you had to pay someone to build it, you would loose the cost advantage. I don't think the poster would tackle such a project.

Behringer is the undisputed watt per dollar champ. Very reliable. They do however have fairly loud fans as they are pro style amps. I do believe they come with a 3 year warranty. Currentry I am running a Behringer EP-2500 to power 4 Avalanche 18" subs.