Bi amped but speakers bright

247yoshi

I'll start with my set up...
Denon AVR 1803
Audiosource AMP300
RTi 8's (F+L)
Velodyne DPS-12 sub
Surround speakers all Energy

I set up L & R speaker level out of Denon & into the Velodyn sub with built in high pass crossover @ 85hz. L & R speaker out from Velodyn into Speaker level input of AMP 300.
AMP 300 is 2 channel amp with 2 zones A+B, then ran bi-wire from L+R A+B = 4 pairs.....make sense?
Denon set to "no sub" fronts "large".

My intention was to use the RTi8's for mid & Hi's only....the result - over bright hi's.

So i changed set up and didn't run speaker level L+R through Velodyn crossover. So Denon - AMP300 - L&R Hi L&R Mid
Now RTi8's are playing base....which wasn't my intention.

Heads up the AMP300 doesn't have seperate vol for A & B speaker level out.
Denon amp has a setting
"Sub yes/no" which i understand
"Sub + main" question will this out put a single from sub pre out / rca in stereo?
If so this would solve my set up.

So can anyone explain what happend to end up with over bright Hi's?????

F1nut

So can anyone explain what happend to end up with over bright Hi's?????

Rti 8's are bright by nature. Try replacing the jumpers with high quality wire instead of bi-wiring, might help.

wingnut4772

F1nut wrote:

Rti 8's are bright by nature. Try replacing the jumpers with high quality wire instead of bi-wiring, might help.

That's a good start.

Tequila

Finut:

Try replacing the jumpers with high quality wire instead of bi-wiring?

The jumpers do the same function than bi-wired? What is doing the jumper there? Really is better with a wire? What if I use a wire and the jumper at the same time?

F1nut

Yep, much better, IMO.

No and yes.

The jumpers connect the high and low sections of the crossover.

Yes.

Why?

danger boy

yoshi, exactly how bright are we talking about? what are you hoping to acomplish? you also have to ask yourself.. is bi amping worth the hassle? were you not happy with your RTi8's before?

Most all Polk Audio have two sets of binding posts.. for either bi wiring or bi amping. well all know that part.

But alot of people have found the right sound from just replacing their metal jumpers with high quality speaker wires.. like F1nut said.. it's less hassle that way..

but if you have your heart set on bi amping.. then by all means go for it.. sometimes you may have to mix two different kinds or brands of amps to make it sound the way you want. Use a more laid back amp for the highs/tweeters and one more musical or laid back for the woofers. Or even the other way around.. not every amp will give you the sound you want from the get go.

Also.. what type of speaker wires and interconnects are you using? These both will add brightness to your final sound.

good luck though man.

*i'd also bypass the Velo sub. and just use your amp coming out of the Denon for bi amping.

247yoshi

Thanks Danger boy you are on the money.......no i'm not set on bi-amping, quality/clarity is my goal.
So what i did was added a good quazlity wire jumper @ the RTi8's and ran them off the AMP300. Set Amp to fronts small, crossed @ 80hz via amp and the system started to behave itself!
So work I in construction...and made a buitiful job of running conduit in my garage (below home theater) to run extra wire, but must admit that it didn't result in what i wanted through bi-amping........still experimenting..wish id did but it didn't even after all that work.


Tyoshi, exactly how bright are we talking about? what are you hoping to acomplish? you also have to ask yourself.. is bi amping worth the hassle? were you not happy with your RTi8's before?

Hey simply too brite....listenable.. but very bright, wish i had a gain control, but i dont to tweek.

Tequila

f1nut:

1. Can I use only one long wire to everyone two sets of binding posts (one for right lows and highs, another to the left highs and lows)?

2. Is really this better than bi-amp?

3. If I use biamp can use the jumpers too?

247yoshi

1. Can I use only one long wire to everyone two sets of binding posts (one for right lows and highs, another to the left highs and lows)?

2. Is really this better than bi-amp?

3. If I use biamp can use the jumpers too?

Answers.........

1. Yes, thats what i just did. But remove the jumpers and replace with high quality wire.
2.Experiment..i ran into the problem of over bight Hi's when i bi-amped, so i did 1. above.
3. No, one reason for bi-amping is to send a seperate signal to Hi's and a seperate signal to lows. It's better to use a crossover to seperate these signals before they are amplified, trouble is (and someone please correct me if i am wrong) Polks have crossovers built into there speakers and sometimes crossovers dont like other crossovers, resulting in reduced sound quality.
There is a good section in the education section describing this.

247yoshi

were you not happy with your RTi8's before?

Yes..very, just can't help experimenting, always tying to squeeeeez every bit out of a system.

I have spent months playing around with my car's set up......now i'll experiment indoor's.

Ern Dog

Yoshi,
When I first transitioned from Monitor 70's to Rti10's- Wow, they were very bright in comparison. I don't notice this much now, just because my ears have adjusted to them. Other advice I got was to add components that have a warm sound, like a warm sounding amp or CDP, plus adding quality speaker cables and IC's should help as well. Or try adding some tube gear!

Tequila

But what is better bi-amp or bi-wired? Is not possible the two at the same time?

danger boy

bi amp is better than bi wire.. and no you can not do both at the same time.

there should be several threads on bi amping and bi wiring. this topic comes up alot in here.

247yoshi

Tequila,
http://www.polkaudio.com/education/showanswer.php?question_num=53
this should help you understand bi-amp bi-wiring

But what is better bi-amp or bi-wired? All depends on how it sounds to you

Is not possible the two at the same time? If you bi-amp you will have to bi-wire