speakers and cables


this is about me being a loser and problem creator.

I finally got a 2nd subwoofer and I was excited to hook it up. Well, not too excited. I knew it would be a pain to hook it up. I was excited to hear it. I spent over 90 minutes connecting the speaker wires to my power amp. When I turned it on, the left channel was gone. It blew the fuse. I disconnected everything, replaced the fuse, hooked it up again. It worked for 10 seconds, blew the fuse again.

The way I hooked them up was I went from the sub speaker out from both subwoofers, rolled the left and right side wires together so I had 4 wires that I connected to the left and right plus and minus channels - speaker binders on the power amp. What are my options? My preamp has no sub out. Nor my amp.

Stupid question: should I just go from left to left on one sub and right to right on the other sub?

grislybutter

Showing 24 responses by grislybutter

@deep_333

Except I don't know what a streamer is. smiley

I am an "analog guy".

@immathewj

almost there. Very dumb question (you are used it to by now) does the high pass filter go between amp and main speakers? Or between preamp and amp?

(and I know sub HAS a low pass filter so I just have to connect it to the signal BEFORE low pass filter.)

@immathewj

Ok so this would only work with the Y splitter - in the preamp - amp scenario?

for the mains - preamp to Y splitter to 100Hz high filter to amp to mains

for the subs - preamp to Y splitter to subs / subs low pass set at 100Hz

 

 

@immathewj

this is the high pass filter, I don't see two sets of outputs

@mswale so the High-pass RCA link is the simplest, it's a plug that has the filter inside? All the signal that comes out of it is above 100Hz? Reading the reviews, it's simple and effective.

@thecarpathian

Does the speaker level output on sub1 put out the full signal or a high pass filtered signal?

This was asked before, it puts out the full signal according to my tests and @deep_333

thanks @immathewj

we were on two different high pass filters, now I get it.

 

@immathewj

A follow up...

So I have not been happy with it, for several reasons.

It sounds good from the sweetspot. From everywhere else, it’s a mess. It sounded significantly better with one sub.

Because of the room and furniture, I have no way of placing the subs anywhere else, other than further to the right and left 1 or 2 feet.

The high pass filter will arrive next week and I will try that.

The lessons learned is that when there are conflicting statements (below) trust your ear. Don’t listen to the experts. (Not that they don’t know infinitely more or don’t mean well, but they are not in your room, and don’t have your limitations.) The whole setup and room are so specific, if it sounds good, and changing it makes it worse, be a coward devil go back to what you liked. Enjoy the music, not the gear.

"get a sub".

"one sub is not enough. get at least two. or four"

"get a high pass/low pass filter"

"don’t have any overlap in the bass"

"don’t add a high pass filter to a full range speaker?"

(and yes, all of these statements can be true,

Attached is the current setup. I still don’t know if the sub is supposed to get full signa as before or just left or right.

I know a lot more than the beginning of this thread. But still not enough to make meaningful improvements. High level vs low level; high pass filter or low, no filter, I still don’t see the obvious preferences.

 

@immathewj so you are right in your questions, we discussed most of it to death. But the big question is - regardless how I set it up, how it will sound. Sometimes less is more.

When I wrote high pass/low pass filter, I meant: external, sorry for the confusion.

I think my biggest confusion is the right crossover point, and whether I should have stuck with one sub.

I would have been inclined to live in the camp that wouldn’t try to integrate subs with good full range speakers that were capable of getting down into the low frequencies.

I understand. I guess the long story short, if I never tried, I would always wonder, what if....

Now that I tried, I understand that I need better components to take advantage of the sub, or I use little hacks. Human voice is above 100Hz, so I would think, if I filter out the signal below 100Hz to the mains, it still would be OK with vocals. I will find out soon!

This is what it looks like

 

 

@immathewj

I would have a hard time placing it behind the listening position. I would have to rearrange the room and get long cables. And I guess it wouldn't solve the main limitations.

Next time (there won't be a next time, my wife would stop me any way should would find feasible) I would need to have one or more of the following

  • a bigger room
  • subs with more options
  • pre or integrated amp with crossover controls
  • a brain.....

It's not over though, just yet, the high pass filters are a few days away, according to Amazon. 

My lazy excuse to give up may be that it's just as much of an art than science smiley 

@mswale

We are here to help you spend thousands of dollars

that made my day!

It looks tight but there is some room like 10 inches to the left, 5 inches to the left. I can rearrange it whichever way I want, move the subs, these pieces are like LEGO. Stacking sounds a bit brave without vibration control? (But you are right, stacking is what I am trying to get close to, placement-wise. 

Most of my vinyl is not in the picture, I feel I have enough. (Not a lot, but maybe 200 or so)

I bought materials to build a rack. That’s my next project.

If I had money, I would buy a new cartridge . And then a new power amp. A rack is definitely in the plans when it rains 100 bills :)

@imatthewj 

update: I added the 100Hz high filters.

So now the mains aren't singing as they used to but they are not overlapping either. I am OK with the sound, not enthusiastic, I guess the placement game shall begin. At least it sounds clean and detailed.

@mswale yes it’s like an animal farm, the more you have, the more it continues to cost. Kind of like when I walk into a rich person’s house, my first thought "nice but I would not want to pay the utility bills!"

Since you sound like a vibration guy, how would I stack them? What would I put between the subs and the speakers?

@mswale I am pretty intrigued about those pads. I should say I am not in love with the look. But I can keep my eyes closed.

@immathewj I understood the stacking as the speakers on top of the subs, not the one sub on top of the other sub, which - I agree - does not seem to be a good approach...

@immatthewj

yes, it also looks like this 

There are at least 10 speaker companies I know of that combine powered subs with passive mid and tweeter drivers. So it's probably not a bad idea. When done correctly....

My main reason not to stack them would be vibration control, which would cost extra  believe. 

@immathewj 

Thanks for checking back!

I am sticking with the quasi stacking for now (subs under and behind mains). The sound is growing on me. I am pretty happy with it. I am not smart enough to figure out how to place two subs anyway and because of the room constraints, it's unlikely that any place would work better.

The only other room I have is our living room where no setup ever sounded good. It has a 45 degree angle fire place in it cutting away a corner, maybe that's why. 

How is your Revel working out?

@immatthewj 

we often have such high expectations but we do not want to let ourselves be suckered in to confirmation bias 

Well said. I think we have the ability to hear music in ways a normal person can't and once we do hear something extraordinary, it's hard to lower our expectations. I wish I could listen to a lot of speakers and make a 100 times more educated choice, but I am not complaining. 

I hope the Revels will work out for you. Sometimes we have to listen like it's the first time.