Recommend me a reasonable speaker level to line level convertor

[krott5333]

Need to hook up a sub with speaker level. Sub only has line level inputs. A quick look at Amazon makes me more confused about what I should get.

 

[pjug]

Never looked at these before - $40 for a voltage divider, 4 cheapo resistors! Hopefully you can find better for less money.

https://www.russound.com/products/a...devices/adp-1-2-speaker-to-line-level-adapter

 

[krott5333]

Never looked at these before - $40 for a voltage divider, 4 cheapo resistors! Hopefully you can find better for less money.

https://www.russound.com/products/a...devices/adp-1-2-speaker-to-line-level-adapter

I ended up getting that. Says it handles 200w and all the other ones I've looked at appear to be made for car audio and include grounding wires and remote turn-on wires. Thanks

 

[somebodyelse]

Do you know if your speaker amp is single ended or bridged? The sort of attenuator pjug linked will work for single ended outputs (the majority of amps) but with bridged amps they may short one of the outputs to ground. Attenuators for these use 4 resistors per channel.

 

[krott5333]

Do you know if your speaker amp is single ended or bridged? The sort of attenuator pjug linked will work for single ended outputs (the majority of amps) but with bridged amps they may short one of the outputs to ground. Attenuators for these use 4 resistors per channel.

Not sure. It's a Hypex ncore nc252mp. It's not bridgeable if that means anything.

 

[somebodyelse]

Not sure. It's a Hypex ncore nc252mp. It's not bridgeable if that means anything.

Checking the nc252mp datasheet (I have revision 4) section 10 shows how to bridge the outputs. If you're using it as a stereo amp then it's single ended - the speaker -ve is at signal ground. If it's a mono amp then the manufacturer has presumably assembled it bridged.

 

[krott5333]

Checking the nc252mp datasheet (I have revision 4) section 10 shows how to bridge the outputs. If you're using it as a stereo amp then it's single ended - the speaker -ve is at signal ground. If it's a mono amp then the manufacturer has presumably assembled it bridged.

So I should be okay using that speaker level adapter?

 

[AnalogSteph]

Stupid question, why aren't you trying to split signals at preamp level, ahead of the power amp?

 

[krott5333]

Stupid question, why aren't you trying to split signals at preamp level, ahead of the power amp?

I'm not sure. If I use an RCA splitter from my volume-controlled DAC (aka preamp), will the signal be attenuated going to the amp? Will there be any loss of quality?

 

[pjug]

Stupid question, why aren't you trying to split signals at preamp level, ahead of the power amp?

Ha ha - pure genius. Money saving too.

 

[D4nte85]

depends on the inputs, it shouldnt matter but you never know

rule of thumb for these inputbridging is fine output bridging is bad+ and most likely kills equipment

 

[krott5333]

okay I got a couple RCA splitters instead. I'll return the line level convertor since it already shipped. Damn crutchfield, shipping things too quickly.