2. amps-preamps
  3. 1202490032

Using Krell rca & bal outputs for the same channel

Why would I do that?
My sub has a highpass filter above 65hz. The dedicated sub channel can have info above that. So how can I get the missing freqs above 65hz. I can get a second sub but I’d rather not.
Since Krell’s RCA & balanced outputs are active at the same time, I can send the sub channel to another speaker using a Y cable to get the missing info. I’m thinking if I must use a Y cable and overtax a speaker with sub info, I’d send it to a rear speaker.
Does anyone know if using both outputs will affect the sound? The manual says that both outputs are active but to connect using only one. Will there be impedance issues? I also have an Audyssey EQ between the PrePro and the amp, so I would use the Y cable from sub and one of the rear to the EQ’s rear channel which will turn the analog signal into digital for EQing and back to analog for the amp.
captaincapitalism
captaincapitalism OP
52 posts
 
Yeah...
I think I'm just going to get a new Sub. It big time sucks Sonus Faber put a crossover in it. Who the heck would want a crossover in a sub when it won’t be compatible with all the audio formats? It's a $4,500 sub.
http://www.sumikoaudio.net/sonus/prod_cremonasubwoofer.htm
It matches my other Cremonas. I’m emotionally attached to it as well. It’s the only component I actually nick named. I call it “Big Mama.” This thing is huge.
But if it isn’t compatible I don’t see that I have a choice.
I spent years with placement & many cables getting the sound just right with Big Mama.
I am so upset. I wasted years of my life and much emotion on it. Now I see how divorced people must feel.

Anyway, I was just saying that if I must mix the sub into another channel (To get the missing freqs between 66-120hz), I want to take the path of least resistance. So since I don’t want to mess with mains that only leaves the rear speakers. Also, since this is only a problem with movies and not music, I wont be messing with my music system if put the LFE channel from DTS and Dolby into the rears.

But this just sounds so crazy. If I wasn’t emotionally attached, I would just get a normal sub. I should have researched what the dials on the sub meant. I had no idea what a “Low Pass Filter “ Meant.
captaincapitalism OP
52 posts
 
What would be a good matching sub for $2,500 for the Cremonas?
http://www.sumikoaudio.net/sonus/prod_cremona_m.htm

http://www.sumikoaudio.net/sonus/prod_cremonacenter.htm
rwwear
2,866 posts
 
Doesn't your sub have LFE inputs? They bypass the xover.
captaincapitalism OP
52 posts
 
Sumiko told me that there is no way to bypass the x-over when I Emailed them.
Do you think there is a way to bypass? I would be forever in your debt.
On page 3 of the manual it describes the connections.
http://www.sumikoaudio.net/sonus/manuals/csubwoofer_manual_p1_p6.pdf
The subwoofer can receive low level signal (Preamplifier or processor level) through the RCA sockets and high level signals (speaker level) through the XLR connector.

I use Fig C on page 6. The RCA from the PrePro LFE to one of the low level RCA connections. The two RCA connections say "Line In" next to it.
timrhu
2,779 posts
 
After looking at the manual I would use the rca line level (preamp) outputs from the Krell in to the sub and the XLR (balanced) output from the krell in to the amp for your main speakers. This will send full signal to both sub and speakers. Not at all sure why you're concerned about sending full signal to your speakers.
Once you are hooked up you will need to listen to the system to get the sub gain and crossover adjusted. Agai, not sure why you want to bypass the sub's crossover, it's there for a purpose. It may take some time but it's possible to get good, balanced sound this way. Good luck.
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