On March 21, 2023 at 13:16, punter16 said...
They were the 500 watt version (SUB-1D-500R) and not bridged. There was only 1 sub and it was hooked up in the correct location (SUB1 vs SUB2).
Brad,
If I can get my hands on another 3160 and test it and it comes in at 2 ohms, we'll pop a KASA in there. I appreciate the info.
On a side note, I like many of you have been installing these way before DSP amps came to the market. In the past, you could use virtually any amp with any subwoofer as long as you set frequencies where it made sense.
I understand the concept of DSP amps and why they are touted. However, speakers are speakers and haven't changed over the years. Why would DSP amps be so crucial now when they weren't in the past?
We had to deal with product shortages during Covid and used mismatched amps on a number of occasions. We have replaced amplifiers for existing in-wall solutions that weren't matching many times over the years. I understand the theory of DSPs and how they can optimize sound but is there any science to the claimed concept of "you must use our amplifier"?
It's not the DSP that matters, it's the amp design and this one isn't the cleanest I have seen, although that's academic in most situations, but I also haven't seen many amplifiers that can actually double the power with half of the impedance, either. They don't state minimum impedance and this should be shown.
The KEF sub has three woofers, so they're either having the voice coils wound to their spec in order to achieve 4 Ohm impedance, or they dip below what most amps can handle/design their amp to handle it. It wouldn't be unimaginable if they stuck a 1 Ohm resistor in series, either- Carver did that in their amps that were sold as 'sound more tube-like', IIRC.
This sub is made for in-wall use- not how I would prefer to use a sub, but with the DSP, it can be made to work with the goofy impacts a stud cavity can cause.
