I would like to build a subwoofer to fit under my stereo cabinet so it would be tucked out of the way, but that would also make it centered between my speakers and away from any corners. The subwoofer would be mostly for music, but I would IDEALLY like something that goes down to 25Hz as I enjoy plenty of organ and classic music, as well as Jazz with piano and stand-up bass. I always run full range floorstanding speakers, so the subwoofer does not have to come up past 60-80Hz.
Space limitations are around 5" tall, but 20" deep and 36" long. Any recommendations would be very helpful, and I haven't found any similar DIY plans.
The below picture is an interesting design that never came to market, so who knows how it would actually sound:
This new prototype FPS10 subwoofer from Audiovox features a flat design that stands in stark opposition to the big and bulky subwoofers we are used to. At 31.5"w x 4.5"h x 15.2"d, the FPS10 is lean enough to be hidden under a couch or behind an entertainment cabinet. It also features 225WRMS class-D amplifier, powering an active 10" woofer with a 12-inch passive radiator.
Space limitations are around 5" tall, but 20" deep and 36" long. Any recommendations would be very helpful, and I haven't found any similar DIY plans.
The below picture is an interesting design that never came to market, so who knows how it would actually sound:
This new prototype FPS10 subwoofer from Audiovox features a flat design that stands in stark opposition to the big and bulky subwoofers we are used to. At 31.5"w x 4.5"h x 15.2"d, the FPS10 is lean enough to be hidden under a couch or behind an entertainment cabinet. It also features 225WRMS class-D amplifier, powering an active 10" woofer with a 12-inch passive radiator.
Some suggestions here, but not as low as you want:
http://www.diyaudio.com/forums/multi-way/236995-bass-unit-shallow-enclosure.html
While searching for that post found a fair amount of shallow car subs, many which could fit into a 5" depth, some of which have Fs near 25 Hz.
Have not actually heard any of the shallow subwoofers, so can't give any personal endorsements.
http://www.diyaudio.com/forums/multi-way/236995-bass-unit-shallow-enclosure.html
While searching for that post found a fair amount of shallow car subs, many which could fit into a 5" depth, some of which have Fs near 25 Hz.
Have not actually heard any of the shallow subwoofers, so can't give any personal endorsements.
Do you mean 25Hz@-10dB or similar roll-off (F-3 dB), not really flat 25Hz low freq. extension, right?!
Ext. size is about 58L/59L = ~2.05ft³
What is very much possible for the 10" sbacoustics SW26DAC76-4 that has less than 4" thick, good for a F-3 dB = 20/25Hz ff.
Make sure you understand what 25hz sounds like, most people just want it to go as low as possible but don't realize that 25 hz or lower is hardly ever in any music out there.. 2nd I don't know many home subs that are shallow mount, but the whole shallow mount is working against your desire for lower end. A normal subwoofer has less trouble with lower frequencies than a shallow mount sub, if you went all out and had a bunch of money, than I guess you could maybe get what you want with the JL 13TW5 or a couple of them its a large sub so it can handle lower frequencies better, also mounts at 2.5" depth, but cost 400-500 a piece.
BTW that sub you showed wouldn't hit 25hz audible in a million years, at only 225 watts RMS you would be hard pressed to get 30hz loud enough with that shallow depth
BTW that sub you showed wouldn't hit 25hz audible in a million years, at only 225 watts RMS you would be hard pressed to get 30hz loud enough with that shallow depth
I emailed Tang Band about their WT-1427G woofer, and below is their answer:
Our engineer team suggest that passive radiator cabinet design is most suitable for WT-1427G with your project.
Cabinet volume = 14L,
F3 = 36Hz,
FO = 35Hz.
Passive board area = WT-1427G vibration area,
vibration Weight = 250G
Our engineer team suggest that passive radiator cabinet design is most suitable for WT-1427G with your project.
Cabinet volume = 14L,
F3 = 36Hz,
FO = 35Hz.
Passive board area = WT-1427G vibration area,
vibration Weight = 250G
I saw this recently at PE. Looked like an interesting way of handling multiple distributed subwoofers.
Dayton Audio VS8 8" Universal Low-Profile Subwoofer 300-490
Dayton Audio VS8 8" Universal Low-Profile Subwoofer 300-490
Yes, my simulation shows very close data for the TB WT-1427G with F-3 dB = 38 Hz (free-field).
Compare this with the clean 25Hz of the 10" SBacoustics SW26DAC76-4 you requested above in my previous post.
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Hi zcables,
For for general information: the "rabbit" posted scanned brochure pictures for the EV Interface B from the mid 1970s:
Electrovoice Interface B Series 3 Brochure - AudioKarma.org Home Audio Stereo Discussion Forums
The more things change, the more they stay the same. You need to find a low profile (shallow) woofer with a Fs=25Hz (or so) and a low Vas, and a passive radiator with about twice the Sd of your woofer. I recommend Jeff Bagby's woofer box and circuit designer to simulate passive radiator boxes: Loudspeaker Design Software
Regards,
For for general information: the "rabbit" posted scanned brochure pictures for the EV Interface B from the mid 1970s:
Electrovoice Interface B Series 3 Brochure - AudioKarma.org Home Audio Stereo Discussion Forums
The more things change, the more they stay the same. You need to find a low profile (shallow) woofer with a Fs=25Hz (or so) and a low Vas, and a passive radiator with about twice the Sd of your woofer. I recommend Jeff Bagby's woofer box and circuit designer to simulate passive radiator boxes: Loudspeaker Design Software
Regards,
Well. I just purchased one of the flat Acoustic Research subwoofers NIB listed above for less than any of the above mentioned drivers sell for individually. If it enda up sounding good, great! If it isn't what I need, then I can resell it for what I bought it for, or take it apart for the ICEpower based plate amp, 10" woofer, etc.
I should get it in the mail this week, and I'll post an update. Thank you everyone for your responses, and I may still need those suggestion ms in the future.
I should get it in the mail this week, and I'll post an update. Thank you everyone for your responses, and I may still need those suggestion ms in the future.
There's always a mix of (helpful or not) Customer Reviews in this type of sub (flat construction).
Amazon.com: Acoustic Research FPS10 Subwoofer (Black): Electronics
Amazon.com: Theater Solutions SUB8S Black 250 Watt Surround Sound HD Home Theater Slim Powered Active Subwoofer: Electronics
(note: pic for the Acoustic Research FPS10 Subwoofer, not post#1 reference with the passive radiator)
Amazon.com: Acoustic Research FPS10 Subwoofer (Black): Electronics
Amazon.com: Theater Solutions SUB8S Black 250 Watt Surround Sound HD Home Theater Slim Powered Active Subwoofer: Electronics
(note: pic for the Acoustic Research FPS10 Subwoofer, not post#1 reference with the passive radiator)
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After a month of use, the FPS10 is an impressive subwoofer. Obviously the draw on it is the flat design as it's less than 6" tall, but it feels well built, with a decent vinyl finish that disappears into the room. The output and sound quality are good, and as good as any big box store subwoofer. SA subwoofer like an SVS is much better, but you will pay much more and it makes up much more space. Frequency sounds solid to 30Hz for music, and obviously benefits from room boundary reinforcement.
I started running the subwoofer off the second ouput of my Dodd Tube Buffer, and had to turn the gain almost all the way up to match my stereo, full-range speakers. With the crossover set to 50Hz, the subwoofer blended well with the speakers, and provided 10Hz of additional low end reinforcement. I then plugged the subwoofer into the output of my TV, turned up the crossover to 80Hz, turned down the volume to 1/4, and the subwoofer blended very will with the stock TV speakers. Listening to the TV with just the additional subwoofer greatly improved the frequency response, sound impact, and listening experience.
I highly recommend the Acoustic Research FPS10 for anyone needing a flat subwoofer, especially since it sounds as good as any big box store subwoofer.
I started running the subwoofer off the second ouput of my Dodd Tube Buffer, and had to turn the gain almost all the way up to match my stereo, full-range speakers. With the crossover set to 50Hz, the subwoofer blended well with the speakers, and provided 10Hz of additional low end reinforcement. I then plugged the subwoofer into the output of my TV, turned up the crossover to 80Hz, turned down the volume to 1/4, and the subwoofer blended very will with the stock TV speakers. Listening to the TV with just the additional subwoofer greatly improved the frequency response, sound impact, and listening experience.
I highly recommend the Acoustic Research FPS10 for anyone needing a flat subwoofer, especially since it sounds as good as any big box store subwoofer.
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