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Old 6th May 2012, 08:37 PM   #1
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Default subwoofer powered by class t-amp?

hey fokes!

I wants to know if its possible to hook a subwoofer driver up with a class t amp like the amp6 from 41hz.com or a ta2020 - 2024 from ebay?

The are very effetive so it could be good when building a mobile setup for outdoor playing..

I dont know if the amp has to have a lowpassfilter to be able to play them and i now that those amps donsn't have one :b

so the q in short: Can a class T chip amp run a subwoofer (+4ohm)??
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Old 9th May 2012, 02:08 PM   #2
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Depends on the efficiency of the driver and what type of output you need. For general listening (at HIfi levels) it can work fine. (Check out the Boominator thread).

I use a cheap 10" DVC driver on my old boom bike and it sounds good with 15 watts, no lowpass was needed for this application.

My mobile trailer system with 6 ten's and a 4x100w TK2050 running on 24v is much more annoying! There are more powerful chip amps out now that will run off of DC and 48v if you need PA levels of output.
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Old 9th May 2012, 02:30 PM   #3
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im actually builing a boominator.. but it could be interresting to build a sub or 2 to place beside them.. but the drivers used for the boominator har not subwoofers.. i talk about real sub-drivers
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Old 9th May 2012, 06:05 PM   #4
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Determine how big of a box you want to lug around.

I would think that a pair of 15" bass reflex boxes and a Tk2050 or TAS5630 (others?) type amp would add some bump to the system, you will need a 24/36/48volt battery upgrade to get the most out of those amps.

Portability gets thrown out the window with the big boxes and heavy battery banks BTW.
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Old 9th May 2012, 06:33 PM   #5
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Originally Posted by mr. doom View Post
Determine how big of a box you want to lug around.

I would think that a pair of 15" bass reflex boxes and a Tk2050 or TAS5630 (others?) type amp would add some bump to the system, you will need a 24/36/48volt battery upgrade to get the most out of those amps.

Portability gets thrown out the window with the big boxes and heavy battery banks BTW.
yeah i know that, but i just wondered if a ta2024 board would be able to do it since i have 2 of them that are just lying in my electronic box
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Old 9th May 2012, 06:55 PM   #6
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Four DVC drivers with both of the small amps in a enclosure/enclosures larger than the boominator would add a bit more bass but it would not be spectacular.
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Old 9th May 2012, 10:22 PM   #7
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As long as you keep the load above 4Ohms those little amps will push a sub-driver... Will it keep up with the midrange? No.

For a mobile system I'd forget about the 20Hz to 40Hz octave.

edit: to clarify, I'm assuming a small sealed subwoofer. Which means low sensitivity via Hoffman's iron law.

Last edited by revboden; 9th May 2012 at 10:41 PM.
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Old 10th May 2012, 10:02 AM   #8
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Portable radios and ghettoblasters are often less than one watt, sometimes only 1/10 of a watt, and those get loud enough to be annoying. 10 watts to an efficient horn sub is like 100 watts to a typical home speaker. Try it and see.

It's not an unreasonable idea to have a little T-amp setup rigged to substitute for the proper amps. Maybe you just want to preview the speaker locations, verify speaker phasing and correct wiring, just need modest levels of background music without the noise of a generator.
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Old 10th May 2012, 10:07 AM   #9
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Originally Posted by dangus View Post
Portable radios and ghettoblasters are often less than one watt, sometimes only 1/10 of a watt, and those get loud enough to be annoying. 10 watts to an efficient horn sub is like 100 watts to a typical home speaker. Try it and see.

It's not an unreasonable idea to have a little T-amp setup rigged to substitute for the proper amps. Maybe you just want to preview the speaker locations, verify speaker phasing and correct wiring, just need modest levels of background music without the noise of a generator.
yeah the TA2024 and all those are very very effeciate.. maybe i should try it sometimes
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Old 10th May 2012, 01:50 PM   #10
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Default Weight and size vs. SPL.

Quote:
Originally Posted by dangus View Post
Portable radios and ghettoblasters are often less than one watt, sometimes only 1/10 of a watt, and those get loud enough to be annoying. 10 watts to an efficient horn sub is like 100 watts to a typical home speaker. Try it and see.
Although a horn will be more efficient the weight of the wood and size of a box that can go below 50hz would be hard to justify when you can now buy a much more powerful amp and get similar results without the bulk.
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