Hi. Here is my problem, maybe someone can help, I am a bit confused with those impedance matching things...
I am using a Kenwood AR404 amplifier for my whole house audio system. It has two sets of outputs (A and B). There is a four way splitter on the A output and another one on the B output, both splitters are model BTech BT913. Here is the description of the splitter from BTech's site (sorry I cannot link to the original page):
That way, I have eight pairs of speakers in my house perfectly working in any combination.
The problem happens when I try to add in-wall volume control to those speakers. I have bought two NON impedance matching volume controls for two pairs of those speakers. When I connect those controls, other pairs of speakers begin to play badly (not the pairs directly connected to the controls). Their sound becomes faint and distorted on one of the other pairs, on another pair one of the speakers stops playing. Everything plays well when I bypass the volume control...
It seems to me that this problem has something to do with impedance...but I am not sure. I think I should try impedance matching volume controls, but before buying those, I would like to know if there is any chance this will help, since I cannot return those.
Any Idea? I would be very happy to see (or hear) my setup finally working properly!
I am using a Kenwood AR404 amplifier for my whole house audio system. It has two sets of outputs (A and B). There is a four way splitter on the A output and another one on the B output, both splitters are model BTech BT913. Here is the description of the splitter from BTech's site (sorry I cannot link to the original page):
Quote:
BT913
PREMIER 4-WAY LOUDSPEAKER CONTROL
(with HEADPHONE SOCKET)
The BT913 Controls up to 4 pairs of loudspeakers connected to one stereo amp. Also has a headphone socket for monitoring. 4mm gold plated sockets accept banana plugs or bare ended speaker cables.
200 Watts per channel
Headphone socket with amp protection
Accepts cable up to 6mm in diameter
Screw terminals ensure solid connection
Using headphone socket doesn't mute speaker sound
The BT913 employs a special Parallel and Series switching circuit to protect the amplifier. Regardless of which loudspeakers are switched on, the amplifier load will not fall to less than half that of the loudspeakers in use. i.e. If using 8 ohm loudspeakers the minimum load will be 4 ohms. Nearly all amplifiers will accept a load of 4 ohms.
That way, I have eight pairs of speakers in my house perfectly working in any combination.
The problem happens when I try to add in-wall volume control to those speakers. I have bought two NON impedance matching volume controls for two pairs of those speakers. When I connect those controls, other pairs of speakers begin to play badly (not the pairs directly connected to the controls). Their sound becomes faint and distorted on one of the other pairs, on another pair one of the speakers stops playing. Everything plays well when I bypass the volume control...
It seems to me that this problem has something to do with impedance...but I am not sure. I think I should try impedance matching volume controls, but before buying those, I would like to know if there is any chance this will help, since I cannot return those.
Any Idea? I would be very happy to see (or hear) my setup finally working properly!