Possibly the dumbest quesion ever posted?

[agarwalro]

Bushido, you mentioned being a carpenter and that makes you a perfect candidate for DIY . This Dayton Audio kit for $340 while over your budget, will give tremendous bang for buck when compared to finished/ off the shelf subs.

#2, I wouldn't trust that method. Serious harm could befall bushido's DAC. At the very least, even if it did work as intended, you'd be halving the line-level signal going into your main speaker amps.

Rojo, there is no harm in using the Y to split a signal. The article you linked also states the same, "A wye-connector used to split a signal into two lines is being used properly". It specifically states that a Y must never be used to sum two signals into one, "a wye-connector used to mix two signals into one is being abused and may even damage the equipment involved". Needless to say, this is something I completely agree with.

Regards splitting the signal and halving it, this is incorrect. The (pre-pro or DAC or player) aka. source's audio out terminal acts as a Voltage Source. As long as the combined input impedance of the two or more devices connected remains at or near the expected impedance for the source's output terminal, the source will not have a problem driving all at full signal strength. The problem happens if one has too many Y's. For example, one source output split to run 4 subs and 2 speaker pairs simultaneously (call it, a cheap multi zone party mode)... Now the combined input impedance of the 6 devices may reach a level that the source cannot drive all to full signal strength. In the latter case, one will get a diminishing percentage of full signal strength. For a typical pre-pro, DAC or player, up to 3 or 4 splits should be no issue.

 

[rojo]

I was thinking you meant trying to sum the RCA L+R into mono before plugging into the sub. Using piggyback cables and plugging the stereo signal into the sub, letting the sub do the summing, what you said makes more sense. Sorry about that.

 

[zieglj01]

I am a carpenter...or I was in another life, and also worked for a world-class cabinet maker for some time...would I be better budget-wise to make this thing? With any luck, and can make a square box

If money is tight, then I would go DIY.

I for one, would skip a lot of these so-called budget friendly (boomy/mushy) subs.

 

[agarwalro]

I was thinking you meant trying to sum the RCA L+R into mono before plugging into the sub. Using piggyback cables and plugging the stereo signal into the sub, letting the sub do the summing, what you said makes more sense. Sorry about that.

That's good feedback. Next time I suggest a Y splitter, I'll mention the caveat that it is a split and not summing situation.

No need to apologize, I could have worded the post more unequivocally .

 

[markw]

Questions about a subwoofer are one thing. Speakers in another room is a different matter entirely.

I'm not entirely sold on the idea that an AVR will supply good,clean, stereo sound to all rooms simultaneously, particularly if you've got a subwoofer in the mix.

Figure the subwoofer for one room and aduyst it as such external to the amp/receiver. Powered subs have internal crossovers and gain controls so blending it with one pair of speakers in room is not a problem. No sub will find it's own crossover point. That's somethong you can do wit ha bit of trial and error. It's not rocket science.
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Now, as for the other two rooms, I lean towards smaller, seperate power amps for each room.

 

[bushido]

Again thanks to all!

As it happens, I was pleasantly surprised to learn that I could (cheaply...Radio Shack) use Y splitters on the Emotiva DAC. Further, I have used one set of XLR/RCA cables (as advised here from Monoprice and also kindly suggested by the young lady earlier) one feeding each of the BTL amps, and then standard RCA's supplying amp #3 successfully. Before I got the XLR's in the mail, I used the Y splitters and was astonished to find such an elegantly simple, cost-effective solution...SURELY there must be a more frustrating and complex answer I thought...alas, once in a while the wind is at your back.

Not that this in any way can substitute for a good sub, but the vintage Epicures I have, particularly the M202's HUMAN Speakers: EPI 202 information do find a way to rumble the floor...mind you the drivers are not pointing down, but when properly supplied with clean power, it hits you in the gut. (Reach For It, George Duke). With the amps in BTL mode, 90wpc is (supposedly) being sent to the 202's (RMS 20--100 conservatively), and I can turn the volume up to 100% with no distortion or clipping of any kind...I've had these speakers for decades, and with the incorporation of the DAC, and using the amps Toshiba SC-M15 on thevintageknob.org in BTL for the first time...I can honestly say I am blown away by the sound quality...

...I blame this web site for contracting the but-if-I-only-did-this-it-might-sound-even-better syndrome...

I'm psyched to look into building a sub, and maybe one for each room...as budget allows. I'm thinking I'll build a prototype, and later work on the exterior finish...

I'm off now for 3 weeks, so I apologize in advance if my threads start to multiply.

Onward and upward,
Puff

 

[bushido]

Any thoughts on this monster? Would it provide good vibes for my 3 adjoining rooms? 21" Velodyne...originally $2500?

velodyne 21 inch 1250watt subwoofer


Or this allegedly one-of-a-kind SVS (budget breaker, but very curious) http://detroit.craigslist.org/mcb/ele/4511468127.html

 

[agarwalro]

velodyne 21 inch 1250watt subwoofer

This might be worth a listen.

Or this allegedly one-of-a-kind SVS (budget breaker, but very curious) SVS Subwoofer - RARE

I have no doubt this is a killer sub if the claims are true. Phil Bamberg has an independent speaker company, Bamberg Audio :: Speakers for Life But, one of a kind, not in production = Impossible to repair easily or cheaply.

 

[bushido]

I picked up an older M&K MX90 and couldn't be happier. Low wattage, but it is a push/pull system with 2, 12" drivers in a sealed cabinet, and hey, the oak matches my home exactly!

At the same time I picked up a used Outlaw 990 preamp with 2 zones, 2 sub-outs, and a nifty bass-managment system that I am dialing in judiciously. Can you say Cash Advance?!

Pristine M&K / Miller & Kreisel MX90 / MX 90 Powered Subwoofer in Dark Oak / 2 x 12" / $1,200 MSRP | Subwoofers | Corte Madera, California 94925 | AudiogoN - The High-end Audio Community

Outlaw Audio

Onward and upward

 

[agarwalro]

Nice! Congrats on the purchases.

 

[beakergeek]

You would run a single RCA cable from the subwoofer out on your receiver. If your sub is powered then you just connect the RCA to the sub and it will work fine. If the sub is unpowered you need to run RCA cable from receiver to an amplifier then to the sub.