Post 1 made on Thursday December 4, 2003 at 21:00 |
Jeff406 Founding Member |
Joined: Posts: | August 2001 55 |
|
|
I've noticed for a while now that several manufacturers make transformerless volume controls. I have been using the Russound impedence matching transformer style volume controls for basic distributed audio systems for years with great results, but I was wondering what experiences any of you all have had with the transformerless type and are they any better?
Just Curious. Jeff
|
|
Post 2 made on Friday December 5, 2003 at 09:35 |
Matthew Parker Lurking Member |
|
|
I have been using resistive volume controls and many other products from Knoll Systems and have had no problems and good service.
|
|
Post 3 made on Saturday December 6, 2003 at 00:38 |
Ernie Bornn-Gilman Yes, That Ernie! |
Joined: Posts: | December 2001 30,104 |
|
|
If they are listed as L-pads, don't use them. If they do not match impedance, be sure not to put too many in parallel.
I once installed about six of these in a system.
What an L-pad does is ensure that the load is 8 ohms from zero volume up to full volume. This is of great value when adjusting the level of a midrange or tweeter in a speaker; if the impedance varied, the crossover frequencies would change as you adjusted the level.
Anyway, room levels were not independent. If you turned one room all the way up, the others went down a bit. More rooms up, all of them sagged in volume. I ended up removing these for free (the job was for my dentist, no desire for acrimony there) and replacing them with Mortronics transformer volume controls.
|
A good answer is easier with a clear question giving the make and model of everything. "The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw |
|
Please read the following: Unsolicited commercial advertisements are absolutely not permitted on this forum. Other private buy & sell messages should be posted to our
Marketplace. For information on how to advertise your service or product
click here. Remote Central reserves the right to remove or modify any post that is deemed inappropriate.