2.1 plate amp - AVS Forum
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post #1 of 13 Old 01-24-2009, 09:24 AM - Thread Starter
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Are there any alternatives to the Keiga 2.1 plate amp? I'm planning on building a semi portable boombox style system and while 25 watts is plenty for the 2, the .1 is going to require more than 50 watts.

I guess I should qualify that. What I want to do with the .1 ends up with 8 ohms which cuts my output since the amp is rated 50w@4ohms.

Any ideas?

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post #2 of 13 Old 01-24-2009, 07:12 PM - Thread Starter
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Anyone?

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Originally Posted by vasyachkin
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post #3 of 13 Old 01-24-2009, 07:55 PM
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ETS has a 2.1 plate amp (SDV1043-200). 35 watts x 2 plus 130 watts for the sub. Runs on 220v or 110v.

http://www.amplifier.co.uk/300W_Product.htm
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post #4 of 13 Old 01-25-2009, 01:17 AM
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Do you already have the .1? Otherwise you could change your plan to a more sensitive driver?
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post #5 of 13 Old 01-25-2009, 06:39 AM - Thread Starter
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Quote:
Originally Posted by mpotoka View Post

Do you already have the .1? Otherwise you could change your plan to a more sensitive driver?

My plan involves a couple of drivers on the .1. 50watts is hard to split but 130 is more than enough.

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post #6 of 13 Old 05-06-2009, 05:02 PM
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I'm bringing this back from the dead because I'm in the process of building my own Frankenstein setup and have been debating on what to do for a 2.1 amp setup. I actually have an older 35wpc (6 channels in all) BSG amplifier w/preamp controller that is bridgeable. Only issue is disabling the unusable internal xover network so it can run full range and let the speakers' passives do the work.

Other than that, I'm seeing limited options since I don't have the time right now to build an amp(kit)...One of the easiest solutions I see is to simply find a cheap stereo receiver and add a suitable plate amp from Parts Express for the Tangband 740c 8" sub I've had laying around. Other option is to use a small Dayton or Sonic T amp but they're only good for about 5-10wpc realistically, plus the Sonic is $70 plus shipping ($45 for the Dayton) and I could probably Ebay a good receiver for the same price or cheaper w/lots of headroom.

Any other 2.1 plate options other than the underpowered Keiga 25x2/50w sub plate option from Madisound and the UK company posted earlier?

Thanks

Jeremy
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post #7 of 13 Old 05-06-2009, 06:31 PM
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I've also been looking, and the selection is very slim as I'm sure you've noticed. I'm currently trying to find out how to build a simple two way crossover to split the signal.
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post #8 of 13 Old 05-06-2009, 06:51 PM - Thread Starter
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Quote:
Originally Posted by Uklit View Post

ETS has a 2.1 plate amp (SDV1043-200). 35 watts x 2 plus 130 watts for the sub. Runs on 220v or 110v.

http://www.amplifier.co.uk/300W_Product.htm

They currently only have these available as rack mountable amps. Plus they have no north american distributorships so any shipment here requires ~$80 usd simply for post. Also the current buildout had no gain control so its very much the same boat as Jack's 500 watt plate amp.

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post #9 of 13 Old 05-06-2009, 07:20 PM
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post #10 of 13 Old 05-06-2009, 07:30 PM - Thread Starter
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Quote:
Originally Posted by mayhem13 View Post

Parts express has one.

http://www.parts-express.com/pe/show...TOKEN=84967801

Its the same as the keiga. 25Wx2+50w.

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post #11 of 13 Old 05-07-2009, 09:13 AM
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Well I punked out for now and decided to use my old Technics DX930 100x5 AVR (replaced recently w/a Pioneer 918)...I'll have to build a small rack to suspend it over my all in one printer but I'll probably pick up a 70 or 100w plate amp from Parts express.

I already have a pair of Tangband 740c 8" subs for computer sub duty that I've had for a few years waiting on sealed enclosures that should mate nicely w/an older 240w PE plate amp that also has been in the closet for some time....

Jeremy
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post #12 of 13 Old 05-20-2009, 07:01 PM
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Quote:
Originally Posted by LHD21 View Post

Its the same as the keiga. 25Wx2+50w.

How do you know that? If it is true I'd like to use the one that partsexpress has. The one that partsexpress lists doesn't have main channels that are stable at 4ohms. If it was stable at 4 then it would be perfection.

Can yo shed any more light on this?
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post #13 of 13 Old 05-21-2009, 04:57 AM - Thread Starter
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Quote:
Originally Posted by ItalynStylion View Post

How do you know that? If it is true I'd like to use the one that partsexpress has. The one that partsexpress lists doesn't have main channels that are stable at 4ohms. If it was stable at 4 then it would be perfection.

Can yo shed any more light on this?

I meant in terms of being 25/25/50. I was looking for like 100/100/250-500.

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