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Old 1st November 2013, 11:46 AM   #1
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Default what is the best route for a 2.5 system?

I hope this is the right forum for this. I have a very simple system consisting of a turntable a phono preamp and a little tube amp driving a pair of 2-ways. I would like to add a powered sub. what is the best way and place to split the signal to send to the sub? I follow the "weakest link" theory and do not want anything unnesisary in the system. Any Ideas?
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Old 1st November 2013, 01:45 PM   #2
sreten is offline sreten  United Kingdom
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Hi,

Just get a sub with speaker level inputs and run some very basic
wire from the amplifier terminals to the sub. It does not need
to be heavy speaker cable as very little current will be drawn.

e.g. : http://www.bkelec.com/hifi/Sub_Woofers/Gemini.htm

The above comes with a suitable 5m connection cable.

rgds, sreten.

http://www.bkelec.com/hifi/sub_woofers.htm
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Last edited by sreten; 1st November 2013 at 01:58 PM.
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Old 1st November 2013, 05:18 PM   #3
flg is offline flg  United States
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Quote:
Originally Posted by sreten View Post
Hi,
Just get a sub with speaker level inputs and run some very basic
wire from the amplifier terminals to the sub. ...rgds, sreten.
Sub Woofers - Sub Bass - Subwoofer
Are you kidding? Typically I regard what you say as fairly strait forward and correct. This would not be the "best" idea IMO
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Old 2nd November 2013, 12:43 PM   #4
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thanks, but the last thing I want to do is send my signal thru a plate amp cross over.
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Old 2nd November 2013, 12:56 PM   #5
sreten is offline sreten  United Kingdom
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Quote:
Originally Posted by flg View Post
Are you kidding? Typically I regard what you say as fairly strait
forward and correct. This would not be the "best" idea IMO
Hi, Really ? So what is wrong with it ? rgds, sreten.
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Last edited by sreten; 2nd November 2013 at 01:04 PM.
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Old 2nd November 2013, 12:58 PM   #6
sreten is offline sreten  United Kingdom
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Quote:
Originally Posted by coopercustoms View Post
thanks, but the last thing I want to do is send my signal thru a plate amp cross over.
Hi,

You don't understand what I'm suggesting.
Your signal does not go through the plate amplifier.
Your speakers are directly connected to the amplifier.

rgds, sreten.

There is a better but more complicated way of doing it,
involving adding a simple 1st order line level high pass
to the valve amplifier by lowering its input capacitor
values and modding the subs speaker level input
to include an inverse of the amplifiers high pass.

It makes the system louder by relieving the small
valve amplifier from the large bass voltage swings.
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Last edited by sreten; 2nd November 2013 at 01:09 PM.
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Old 3rd November 2013, 01:44 PM   #7
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Oh! you mean leave my speakers the way they are and run a second set to the line level input on the sub. That sounds like a great idea. sorry i misunderstood you the first time. I'll give it a try. Thanks.
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