RE: I have some questions

Posted by clio09 (D) on January 20, 2012 at 08:50:02

In Reply to: RE: I have some questions posted by Tre' on January 20, 2012 at 08:10:05:

I'm going by the information provided by the manufacturer. Specifically that frequency response is 0hz to near infinity, input impedance is approximately 10k ohm, and output impedance is approximately 7k ohm. Perhaps my stating 7k ohm was a worst case scenario was misleading or just wrong.

Bottom line is my Lightspeed is better than my Slagle AVC and another transformer-based passive I have. I have to give most of the credit to the fact that the switch and contacts are removed from the equation, as well as the short signal path and simple design (single input/output, no balance or input controls). According to the manufacturer due to the use of the LDRs the performance of the Lightspeed with a cheap Radio Shack pot will be indistinguishable sonically as with a much more expensive switch.

There are caveats that influence performance as with any other resistive-based passive, and even some transformer-based ones, although I admit they are much more forgiving. The impedance requirements stipulated by the manufacturer should be adhered to, but I will say I've used mine contrary to the input impedance recommendation and found the sound to still be quite good.

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Follow Ups Full Thread

Topic - What is the best chose for matching pre amplifier into SET - Kurt 06:53:33 01/14/12 (23)

RE: What is the best chose for matching pre amplifier into SET - TubeDriver 17:26:37 01/16/12 (15)

RE: What is the best chose for matching pre amplifier into SET - Bob_C 20:40:59 01/16/12 (14)

I have some questions - Tre' 08:40:18 01/18/12 (13)

RE: I have some questions - clio09 20:10:14 01/19/12 (3)

RE: I have some questions - Tre' 08:10:05 01/20/12 (2)

RE: I have some questions - clio09 08:50:02 01/20/12 (1)

RE: I have some questions - dave slagle 16:25:33 01/20/12 (0)

RE: I have some questions - Bob_C 09:27:43 01/18/12 (2)

RE: I have some questions - Tre' 09:33:38 01/18/12 (1)

RE: I have some questions - Bob_C 09:52:15 01/18/12 (0)

More - Tre' 09:06:09 01/18/12 (5)

RE: More - Paul Joppa 10:39:37 01/18/12 (2)

That is a big part of it...(nt) - clio09 20:08:24 01/19/12 (0)

RE: More - Tre' 10:43:35 01/18/12 (0)

RE: More - Bob_C 09:59:59 01/18/12 (1)

RE: More - Tre' 10:43:46 01/18/12 (0)

This is What You Need... - Gerry E. 17:53:52 01/14/12 (0)

RE: What is the best chose for matching pre amplifier into SET - Tre' 15:47:35 01/14/12 (4)

AVC Vs. Passive pre amp - Kurt 22:03:54 01/15/12 (2)

RE: AVC Vs. Passive pre amp - Tre' 14:08:11 01/16/12 (0)

Look here - Frihed89 04:27:53 01/16/12 (0)

RE: What is the best chose for matching pre amplifier into SET - Iain42 18:34:34 01/14/12 (0)

RE: What is the best chose for matching pre amplifier into SET - Frihed89 11:35:42 01/14/12 (0)

Follow Ups

RE: I have some questions - clio09 08:50:02 01/20/12 (1)

RE: I have some questions - dave slagle 16:25:33 01/20/12 (0)

RE: I have some questions

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