Do you think there is a real market for such a commercial product?
Somebody Please Make This Already...
Imagine an interesting new product: Two sets of analog inputs (when I say sets, I mean each set has single-ended and also balanced), one volume attenuator that controls output synchronously BY WAY OF TWO SETS OF SYNCHRONIZED RESISTOR LADDERS (analog-domain attenuation, not digital) between the two sets of inputs, and then matched sets of outputs (again, both, single-ended and balanced). The entire device should be active, so that if you use single-ended input, it can still output a balanced, differential signal after the volume control, and on the output end there should be an option to combine L/R signals into a single signal (like an LFE output).
Even better yet, we should allow adjustable high-pass filter on the first set of in/outputs and an adjustable low-pass filter on the second set of in/outputs. Slope and frequency should both be adjustable. And of course both filters can be separately bypassed.
The unit should also have a single 12V trigger input and three 12V trigger outputs, and it should have a remote control that can control volume, filter slopes and filter frequencies.
-Ed
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- 23 posts total
Why do you need two synchronized volume controls? I assume you have 2 amps, one SE and on XLR. you want them to go up and down at the same rate but how are you going to set them at the same level to begin with? so you have to ask for an adjustable offset between the 2 outputs. This is already available for AV--any AV receiver allows you to set the levels of each speaker or even automatically does it for you with a microphone. If you are looking for something for your 2 channel system biamped, I think you’re looking for a custom piece. Jerry |
@carlsbad2 this is really more of a bass management issue than anything else. I suppose an AV receiver would solve this issue as long as it sounds as good as the end listener wants. Some people prefer to use their own DAC (for the speakers), which they would deem better sounding than the DAC in any AV receiver of similar affordability, but don’t want to use digital volume control (upstream of the DAC), so they want the analog output of the DAC (even if high-pass filtered at the digital level before the DAC) and the (analog) signal to the subwoofer to be volume synchronized when raising and lowering volume. The subwoofer itself has its own volume control to ensure they are set appropriately versus the speakers to begin with. I’m sure you and many others would consider this a solved issue by simply, "settling," for either digital volume control upstream or using an AV receiver instead of proper high fidelity separate components (high-end DAC, pure power amplifiers etc.). I never said I expected this product to sell in the hundreds of thousands of units, but there are definitely niche uses for this. I posted this same idea to Reddit and someone else responded with, "Interesting. Like a stereo subwoofer pre-amp with L-R stereo attenuation. Could be very useful for people like me with no attenuation available on my power amplifiers, they are at 0db all the time. I’m currently using my pre-amp for volume / source selection but a little floor noise gets through when nothing is playing / quieter passages. This device could fit between my crossover and power amplifiers to allow attenuation at that point, but i’ve yet to find a device that covers this." And another person also suggested this device can be used in the process of comparing amplifiers. There are numerous potential uses for this device as I’ve outlined it. -Ed |
I didn't suggest using an AV receiver for 2 channel sound. I just was addressing if you want to use it for AV. Now I know you're looking for subwoofer volume control. I don't use subs but I know that many subs have a high level input so the sub and speaker are driven off the same wire. I know a lot of sub users have solved this and now that they know what you're asking, maybe they will have some suggestions. Jerry
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- 23 posts total