B&W Owner's Thread - Page 685 - AVS | Home Theater Discussions And Reviews
Forum Jump: 
Reply
 
Thread Tools
post #20521 of 20529 Old Today, 04:03 AM
Member
 
Morfious's Avatar
 
Join Date: Apr 2003
Location: Eastern PA
Posts: 61
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 23 Post(s)
Liked: 20
Bi-Amp - Low frequenies and high frequencies are sent from 2 different amplifier channels. They can be from the same amp or from 2 different amplifers. The main concept is that each speaker is driven by 2 different channels. The amp and each speaker would have 4 connections (Hi +, Hi -, Low +, Low-). Best use of this method is with and external crossover and can give better sounding results since the low frequencies can be driven with a more powerful amp.

Bi-Wire - Low and high frequencies are sent from the same amplifier channel. The connectors at the amplifier end has the positive wires connected together as well as the negative wires connected together. Those 4 leads then make the run to the speaker.

Bi-Amping can have the ability to improve the sound quality or change the sound of the speakers, if an external crossover is utilized. You also can emphasize or decrease the bass in the speakers by using a different wattage amp for the low end of things.

Bi-Wire should not dramatically change the sound. You are effectively increasing the gauge of the speaker wire by using 2 runs to the same speaker.

I forget where I read the reference, but in my case using a quad cable 12 gauge speaker wire in bi-wire application is equivalent to using a single run of 9 gauge speaker wire. The main reasons I did it were for aesthetics, and for the fun of making the cables myself.

Hope this clears things up if there was confusion.

Panasonic 65ZT60 Plasma Calibrated by Chad B
Emotiva XMC-1 (Dirac is awesome)
Emotiva XPA-5 (200w x 5)
B&W (CM10 S2, CMC2 S2, CM5 S1)
SVS SB13 Ultra Sub (Planned Upgrade)
Room Treatments (Planned Upgrade)
Morfious is online now  
Sponsored Links
Advertisement
 
post #20522 of 20529 Old Today, 11:13 AM
AVS Special Member
 
karlsaudio's Avatar
 
Join Date: Nov 2009
Location: Maple Grove, MN
Posts: 1,790
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 74 Post(s)
Liked: 28
Just a question here. I was at a place last night that had the 802Ds hooked up to some McIntosh mono blocks and pre amp. What an amazing sound in the mids and highs!! However. Below say 3-400 Hz, What a mess! VERY muddy bass! The room was treated and the treatments seemed to be the right kind and placed well. I am going to assume this was not the speakers and there was still something wrong with the room. I can't imagine the 800 series are like that. Anyone else experience this? Was the McIntosh stuff messed up? I know its hard to tell without actually measuring the room but I just found it odd. How do you sell multi thousand dollar equipment when it sounds like sh*t? This was not Best Buy.

Sounds good!
karlsaudio is online now  
post #20523 of 20529 Old Today, 02:44 PM
Senior Member
 
Gerardo2068's Avatar
 
Join Date: Mar 2014
Posts: 354
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 161 Post(s)
Liked: 40
B&W Owner's Thread

On the minority of on this of course but internal crossover vs external cross over.. Crossover is a crossover doesn't matter where you put it. Unless there are 4 crossovers so the signal don't run in to each other at all. Just me visualizing it for what I have read.
Gerardo2068 is online now  
post #20524 of 20529 Old Today, 03:29 PM
AVS Special Member
 
Rod#S's Avatar
 
Join Date: Jun 2003
Location: Canada
Posts: 1,813
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 116 Post(s)
Liked: 31
Quote:
Originally Posted by karlsaudio View Post
Just a question here. I was at a place last night that had the 802Ds hooked up to some McIntosh mono blocks and pre amp. What an amazing sound in the mids and highs!! However. Below say 3-400 Hz, What a mess! VERY muddy bass! The room was treated and the treatments seemed to be the right kind and placed well. I am going to assume this was not the speakers and there was still something wrong with the room. I can't imagine the 800 series are like that. Anyone else experience this? Was the McIntosh stuff messed up? I know its hard to tell without actually measuring the room but I just found it odd. How do you sell multi thousand dollar equipment when it sounds like sh*t? This was not Best Buy.
Was there subs in the room? If so perhaps the pre-amp or SSP was set for double bass, that would certainly F up the low end. It's also possible the speakers were placed poorly, incorrect taps on the amps were used, etc. A lot of different things could be contributing.

Rod#S is offline  
post #20525 of 20529 Old Today, 03:49 PM
Senior Member
 
JimSatala777's Avatar
 
Join Date: Jan 2015
Location: Ft. Myers Beach, FL
Posts: 217
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 110 Post(s)
Liked: 21
802d's have very good Bass response. ..not as good as say 800d's or Wilson Maxx3s or Grand slam
JimSatala777 is online now  
post #20526 of 20529 Old Today, 03:53 PM
AVS Special Member
 
drewTT's Avatar
 
Join Date: Nov 2007
Location: Anaheim Hills, CA
Posts: 1,952
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 72 Post(s)
Liked: 108
Quote:
Originally Posted by karlsaudio View Post
Just a question here. I was at a place last night that had the 802Ds hooked up to some McIntosh mono blocks and pre amp. What an amazing sound in the mids and highs!! However. Below say 3-400 Hz, What a mess! VERY muddy bass! The room was treated and the treatments seemed to be the right kind and placed well. I am going to assume this was not the speakers and there was still something wrong with the room. I can't imagine the 800 series are like that. Anyone else experience this? Was the McIntosh stuff messed up? I know its hard to tell without actually measuring the room but I just found it odd. How do you sell multi thousand dollar equipment when it sounds like sh*t? This was not Best Buy.
I would have been pointing that out the whoever was doing the demo for you. I have heard the 802 and 800D. Nothing but sublime sound across the board. The 800D was spectacular.
drewTT is online now  
post #20527 of 20529 Old Today, 04:12 PM
Senior Member
 
JimSatala777's Avatar
 
Join Date: Jan 2015
Location: Ft. Myers Beach, FL
Posts: 217
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 110 Post(s)
Liked: 21
802d's fed by a Krell 402e will rattle your teeth and make you feel like you part of the music. ....800d's fed by a pair of 900e will literally kill you
karlsaudio likes this.
JimSatala777 is online now  
post #20528 of 20529 Old Today, 05:35 PM
AVS Special Member
 
karlsaudio's Avatar
 
Join Date: Nov 2009
Location: Maple Grove, MN
Posts: 1,790
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 74 Post(s)
Liked: 28
This was the first time I have listened to the 800 series. I know they can do better. When I say the bass was bad, it was bad!!! It was just noise without any coherence. I am sending them a email regarding this. Oh well. There was no other sub on. I looked at the connections.

Sounds good!
karlsaudio is online now  
post #20529 of 20529 Old Today, 05:36 PM
AVS Special Member
 
karlsaudio's Avatar
 
Join Date: Nov 2009
Location: Maple Grove, MN
Posts: 1,790
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 74 Post(s)
Liked: 28
Quote:
Originally Posted by JimSatala777 View Post
802d's fed by a Krell 402e will rattle your teeth and make you feel like you part of the music. ....800d's fed by a pair of 900e will literally kill you
Now I know what to get when I win Powerball!

Sounds good!
karlsaudio is online now  
Reply Speakers

Tags
B W , Bowers And Wilkings 685 Speakers , carver cm-1090
Gear in this thread

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off