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What are the current best 12" drivers out right now..SQ is the goal.


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25 replies to this topic

#1 of 26 OFFLINE   James W. Johnson

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Posted December 17 2005 - 02:54 AM

I am looking to build a <5ft3 subwoofer, I prefer sound quality over output...so I am thinking a nice 12" efficient driver is what I need. I am out of the loop right now so I have no idea what is out there or what might be coming on the horizon. thanks

#2 of 26 OFFLINE   David_P

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Posted December 17 2005 - 06:52 AM

right now... sound splinter 12" (two different models to pick from) and probably av-12 from AE. On the horizon? Ascendant various 12 inchers, which will all apparently include some kind of low distortion, flat BL motor (not XBL^2) AE is changing their AV-12/15 line in the near future to have a better motor Adire has promised new DIY subs for almost a year now, but only a limited number of tempests have shown up, and only at CSS in Canada, IIRC. The Tumult 12" would be a prime choice, but you could be waiting for a long while. I think the DIY market is really on the back burner for Adire right now... which financially probably makes sense. Just disappointing for the DIYer :-) David

#3 of 26 OFFLINE   Andrew Pratt

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Posted December 17 2005 - 11:56 AM

Why limit yourself to 12" drivers if you're willing to go that large in a box?

#4 of 26 OFFLINE   James W. Johnson

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Posted December 18 2005 - 03:18 AM

Good point...but 5' is like the max and really I guess
3' would be more like it.

Let me be more specific...id like to spend under $300,
keep the box to <4ft3 OD.

I am acutally subless at the moment..its kind of refreshing.

Those of you who dont know me ive had the following subwoofers, this does not include subs I have built and sold and the many projects that never made it to the finished state.
First let me say that I have had a number of commerical subwoofers and try to hear new ones when I get a chance just to see what is out there. I gotta say that these days commercial subwoofers have really gotten better and in some ways DIY is becoming less and less of a money saving ordeal but rather just something you do because you enjoy it. Ive said it many times before but I could be happy with very little subwoofer
if good bass was my only goal.

I forget the exact sizes but my first DIY subwoofer was back in 1998 ..I built a single ported Shiva sonosub,
after that I build another larger Shiva...I found the EBS.
Then I build a dual Shiva sonosub followed by my Big Pig dual Tempest subwoofer which was some 750lbs ,it had dual 8" ports.
Then I went with a dual Tempest Sonosub...after this one I went thru a few more commercial subwoofers including a Servo-Drive Contrabass. Then finally my dual 18" Blueprint IB. My HT is my spare bedroom, size is approx 10x8' Posted Image. Its basically my bedroom now as I put a futon in it and lay it out at night. I am on my 4th projector , an Infocus 4805 and I use a 6' wide screen ..have been thru numorous DIY screens and am currently using some Da-Lite High Power fabric on my DIY frame.

Speakers..well currently I have sold everything but some One Pis...I recently sold my Studio Series 4 Pis which really never worked out perfectly. These One Pis are very nice and I may just build a full set of them. Ive had all sorts of commercial speakers and have had several DIY speakers , mostly kits from Adire, Madisound and Pi speakers.

Anyhow...

Ive disassebled my IB , I thought I was gonna move but I never did besides, I never learned to REALLY love the bass it produced.
On paper and the real world numbers proved my dual 18" IB was the best sub I have made to date....

You know if there is anything I have learned building subwoofers all these years is sometimes everything can be perfect on paper AND in the real world numbers and the sparks just are not there.


I still dont know what it is I like ..my ears may prefer a certain level of distortion for all I know.

A simple 12" subwoofer is what id really like to build right now.

#5 of 26 OFFLINE   James W. Johnson

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Posted December 18 2005 - 03:24 AM

sound splinter 12" (two different models to pick from) and probably av-12 from AE. >>>> Can you provide a link to these? Thanks Say how about for an amp, is the Apex Sr. a decent one?

#6 of 26 OFFLINE   meeks

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Posted December 18 2005 - 05:41 AM

http://yellow.myneth....products_id=52

http://www.soundsplinter.com/

Look at the RL-p line of soundsplinter. I believe the badass rl-s is more geared for car audio.

#7 of 26 OFFLINE   Jack Gilvey

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Posted December 18 2005 - 06:40 AM


Uh-huh. We both know you'd be bottoming the sh*t outta this thing within an hour, but since you asked so nicely... Posted Image
SVS Customer Service
http://www.svsound.com
sales@svsound.com
techsupport@svsound.com

#8 of 26 OFFLINE   James W. Johnson

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Posted December 18 2005 - 06:57 AM

lol, whats up Jack? I see you got a Panny 900U..congrats on that. Perfect, those drivers look great. I'll probably go with one of those. thanks

#9 of 26 OFFLINE   Seth_L

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Posted December 18 2005 - 02:19 PM

Probably something from Adire with XBL^2 will be your highest SQ driver. Unfortunately you can't get them.

#10 of 26 OFFLINE   Kyle Richardson

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Posted December 19 2005 - 01:39 AM

I agree with Jack. Look at the Dayton 12HF Referece Driver or also check out he Soundsplinter Premium 12 for a bit more output capability.
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#11 of 26 OFFLINE   James W. Johnson

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Posted December 20 2005 - 03:10 AM

Welp I let the winds of Ebay determin my direction ...this should be fun. I am gonna try a clone , and luckily me and Curt C. from Velodyne get along. Posted Image

http://cgi.ebay.com/......MEWN:IT&rd=1


There are a bunch of SPL-800 amps on Ebay now too...i was considering one of those but I figured the extra 400 watts would be nice. I know this amp is not just a straight up amp , I am sure its tweaked so I am going to need Velodyne's help choosing a driver and alighnment.

Posted Image

#12 of 26 OFFLINE   James W. Johnson

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Posted December 20 2005 - 03:11 AM

BTW I had an SPL800 subwoofer for a month or so once, I loved that little sucker!

#13 of 26 OFFLINE   Mike Keith

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Posted December 20 2005 - 12:54 PM

You might consider a two step sub system, an IB for the really low stuff and a sealed box system with a little overlap and EQ/Phase shift to allow a better transition into the mains. Don’t forget the room has more to do with SQ then anything else. I have an IB and the added sealed pair of ACI 12" were just the ticket to get the punch and extension I was looking for and overcome the room modes, and like you I have tried many different combinations of subs, all but this latest fall far short.

#14 of 26 OFFLINE   James W. Johnson

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Posted December 21 2005 - 04:28 AM

Hey Mike, that sounds like a great idea but I am not really in search of anything..I am just building another sub. A small sealed subwoofer is enough to power my room and with the extreme room gains I have ..that little SPL800 does it perfectly. A single sealed Shiva would do it too. Well its looking like my best bet is to buy a driver from Velodyne and just copy the SPL1000. I dont think Velodyne is going to tell me the TS specs of the driver nor are they going to help me find a driver so I am SOL. I know the SPL1000 amp has some EQ built into it and knowing the SPL1000s enclosure is just barely larger than a cubic foot the EQing is probably all centered in the lower frequencies..so I am probably safe to make the box a little bit larger. But I suppose to be 100% safe id be best off sticking to at least within 10% of the original size , I can probably improve on the sound just by making a sturdier box than what Velodyne offers.

#15 of 26 OFFLINE   James W. Johnson

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Posted December 21 2005 - 04:30 AM

Does anyone here have any info they can share about Velodyne's driver source or have some rough specs on the SPL1000 driver? thanks

#16 of 26 OFFLINE   johnBee

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Posted December 21 2005 - 05:52 AM

Hello James, I am not sure if you are aware of the RythmikAudio Servo sub, but it is a 12" TC Sounds driver, 370 watt Servo amp that has outstanding SQ and extension, and pretty decent output also. Check it out @rythmikaudio.com

#17 of 26 OFFLINE   JohanD

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Posted December 21 2005 - 06:57 AM

I just recently built a 12" subwoofer for my infocus 4805 based HT. The Sub I bought was a GR-Research 12" sub and 12" passive radiator. The box is 2.4 cubic feet.

http://www.gr-resear...vers/sub_pr.htm
The sub and PR on on sale as a combo for $129. I used a rhythmik 350 amplifier to power it. Just got it hooked up last night so I can't comment on the performance just yet, but the price and specs are nice. It was basically designed with SQ as the goal.

You can check out some pics of my box construction:
http://photobucket.c.../c92/iron_forge

#18 of 26 OFFLINE   James W. Johnson

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Posted December 21 2005 - 07:33 AM

Hey thanks guys...both of those look great. That Rythmikaudio Servo combo looks like alot of bang for the buck. And that GR-Research combo is cheap! I just got off the phone with Velodyne ...I can get an SPL 1000 driver for $300 + shipping ..I dont know anything about it except it has a 21.6lb magnet and its 8ohms. The amp I won is rated @ 1000 watts RMS /2000 watts peak but who knows how fudged those numbers are. Knowing the driver is 8ohms makes me think the amp is probably more like a 500watt amp or even less. I am not sure what I am gonna do..I can do this SPL1000 clone for about $500 + box materials....this does not look too attractive when I know I can get a new SPL1000 for about $700. Hmm.

#19 of 26 OFFLINE   Mike Keith

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Posted December 21 2005 - 12:17 PM

I'd be careful with the Velodyne drivers, I've tried a HGS15 woofer in a DIY sealed and apreodic and had have little good to report about it. It looked great, huge magnet structure and beefy suspension, but sounded like crap no matter what I put it in.

#20 of 26 OFFLINE   James W. Johnson

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Posted December 21 2005 - 12:39 PM

I cannot say that surprises me, I am sure the HGS15 amp plays a pretty big role in making that driver sound good. Same goes for the SPL1000..id not be buying the driver if I did not have the amp that goes with it. You still have that HGS driver? there is an HGS amp on Ebay now.




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