[lowrider]

I am considering one of this to drive my 96 db broadband speakers, but I need to connect a subwoofer using high-level connection...

I hear that digital amplifiers dont support this connection, does the NuForce ?

[ton1313]

This Pre does have a set of line level outs that could be used to send a signal to a sub via interconnect. They were put there incase you wanted to add a pair of amps to bi-amp speakers, or if you decide to use different amps, you could use the pre side of the IA-7 by its self.

This is a great sounding unit!

[lowrider]

Thanks, but my subwoofer doesnt have xover on the low-level input, so I need to use high-level, connected to the speaker outputs...

[ton1313]

One additional question.

Very rarely, when turning the unit off (remote or control knob) the blue lights stay on. No sound is being produced - so unit is officially "off". To fix this situation, I have to turn off with the rear rocker switch. Any idea why & if this is harmful or not?

Thanks

[ton1313]

If you have to use speaker level, just use some jumper wire from your speaker binding posts to the sub.

[timothyharnett]

If you have to use speaker level, just use some jumper wire from your speaker binding posts to the sub.

I think the problem is that you can't common the earth so joining up the amp to the sub using a three pole connection won't work. 

The alternative is to use two subs so that you can connect one to each side without commoning the earth.

[lowrider]

Some manufacturers even sell an accessory to connect high-level with their class D powers, otherwise you might blow them...