Are these Velleman speaker protection modules any good?

Spasticteapot · 7th November 2006, 02:21 AM

http://store.qkits.com/moreinfo.cfm/fk650

At 9$, it's certianly cheap enough...but what will it do to the signal quality?

Here's the more expensive version:

http://store.qkits.com/moreinfo.cfm/K4700

6BG6GA · 7th November 2006, 02:44 AM

I purchase (2) K4700 protection modules and put them together.
I tested them and they work fine. Don't worry about any signal quality loss. When the relay latches up it completes the chain between the amplifier and the speaker(s). They are very quick to detect DC also.

I purchased mine for a Hybrid amplifier project.

farl · 7th November 2006, 06:55 PM

I used the K4700 in my Krell KSA50 clone and it works fine. I'd changed the relay to a good quality and put it off the board. It will not affect the signal quality.

Cobra2 · 7th November 2006, 07:43 PM

As I did not want relays in the wiring, I have modified them to be detectors only... with a LED to display fault.

Arne K

7th November 2006, 02:21 AM	#1
Spasticteapot diyAudio Member Join Date: Jan 2006 Location: Wisconsin....what did you expect?	Are these Velleman speaker protection modules any good? http://store.qkits.com/moreinfo.cfm/fk650 At 9$, it's certianly cheap enough...but what will it do to the signal quality? Here's the more expensive version: http://store.qkits.com/moreinfo.cfm/K4700

7th November 2006, 07:43 PM	#4
Cobra2 DIY ! diyAudio Member Join Date: Apr 2002 Location: Stavanger, Norway	Modified As I did not want relays in the wiring, I have modified them to be detectors only... with a LED to display fault. Arne K __________________ In vino veritas, in aqua sanitas

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7th November 2006, 02:44 AM	#2
6BG6GA diyAudio Member Join Date: Nov 2002 Location: USA	I purchase (2) K4700 protection modules and put them together. I tested them and they work fine. Don't worry about any signal quality loss. When the relay latches up it completes the chain between the amplifier and the speaker(s). They are very quick to detect DC also. I purchased mine for a Hybrid amplifier project.

7th November 2006, 06:55 PM	#3
farl diyAudio Member Join Date: May 2005 Location: Dubai, UAE	I used the K4700 in my Krell KSA50 clone and it works fine. I'd changed the relay to a good quality and put it off the board. It will not affect the signal quality.

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