2 Channel Audio system

[WmAx]

OK

the dynasound is a bit too much for me. So got the B&W803s used for $3500, and a new Yamaha P2500s, and a used Parasound halo P3 used for 440.

Eventually I will get the DCX 2496 for some equalization. Will get blue jeans cables to interconnect this products.

Ashish

The DCX2496 should be included in your initial purchase if you want to really enjoy them right from the beginning. Sure, they will sound nice even as is. But the B&Ws will sound not nearly as natural without the DCX to compensate for treble tilt and baffle step correction.

-Chris

 

[scorpious]

The DCX2496 should be included in your initial purchase if you want to really enjoy them right from the beginning. Sure, they will sound nice even as is. But the B&Ws will sound not nearly as natural without the DCX to compensate for treble tilt and baffle step correction.

-Chris

Chris,

I think the B&W 803s has a corssover freq of 350hz and 4Khz. so does that mean the passive crossover unit inside the speaker splits the audio signal in way that any signal less than 350Hz goes to the Bass cones, below 4Khz goes to Mid range and above 4Khz goes to tweeters?

if thats the case how can the DCX2496 help me, if the passive crossover in the B&W redistribute the signal coming from the DCX2496?

by the way could you explain treble tilt and baffle step correction?

Also should I bi-wire the B&W 803s with the Yamaha P2500s? or should I leave it with the jumper cables on?

Thank you
Ashish

 

[scorpious]

Typically isnt baffle step correction circuitry present in the crossover freq citcuitry of a speaker? So isnt the dcx2496 just increasing the amplitude of the low freq to compensate for the loss in bass due to the speaker design?

 

[WmAx]

Chris,

I think the B&W 803s has a corssover freq of 350hz and 4Khz. so does that mean the passive crossover unit inside the speaker splits the audio signal in way that any signal less than 350Hz goes to the Bass cones, below 4Khz goes to Mid range and above 4Khz goes to tweeters?

Yes.

if thats the case how can the DCX2496 help me, if the passive crossover in the B&W redistribute the signal coming from the DCX2496?

You will want to use the DCX as a EQ - to compensate for baffle step correction error and treble response. You would enable and use a high shelving filter and low shelving filter, allowing you to smoothly change the power level of a wide band over or under a defined frequency.

If you ever intend to use subwoofers, the DCX is also the only proper way to integrate them. The DCX can also be used to cutomize bass signature of the subs or the 803S speakers.

by the way could you explain treble tilt and baffle step correction?

No speaker will have the perfect level of baffle step correction. The amount needed depends on room size, listening position, speaker placement and other related factors. As a result, the amount of BSC included on a speaker is pre-set and a compromise. Usually, the BSC is not enough, if you try to use speakers from from the wall boundary. In any event, by using a 6db/octave low-shelving filter set at a frequency equal to 1/2 wavlength equivalent of the baffle width of the speaker, you can adjust the BSC to have the perfect neutral lower mid-range balance.

As for treble correction - most recordings are made in a manner that adds substantial treble emphasis. Credible researchers have found that almost all listeners judge a speaker as more neutral sounding on most recordings when the speaker treble response is down a few dB by the time you hit 10kHz.

Assuming everything else is excellent(speaker linearity, distortion, low energy storage, etc., room acoustics, etc.), then these two adjustments will make the difference between a good sounding speaker and superb sounding speaker.

Also should I bi-wire the B&W 803s with the Yamaha P2500s? or should I leave it with the jumper cables on?

No point in bi-wiring anything unless you just have lots of extra cable that you are trying to find an excuse to use on something...

-Chris

 

[scorpious]

Yes.

You will want to use the DCX as a EQ - to compensate for baffle step correction error and treble response. You would enable and use a high shelving filter and low shelving filter, allowing you to smoothly change the power level of a wide band over or under a defined frequency.

If you ever intend to use subwoofers, the DCX is also the only proper way to integrate them. The DCX can also be used to cutomize bass signature of the subs or the 803S speakers.

-Chris

So that means the ULTRADRIVE PRO DCX2496 also acts both as a crossover and a equilizer, so there is no need to purchase a seperate equilizer like the ULTRACURVE PRO DEQ2496.

Ashish

 

[WmAx]

So that means the ULTRADRIVE PRO DCX2496 also acts both as a crossover and a equilizer, so there is no need to purchase a seperate equilizer like the ULTRACURVE PRO DEQ2496.

Ashish

Correct. It serves both functions. It actually has more functions even beyond this; if you get it you will realize it's an incredibly powerful/versatile speaker management system.

-Chris

 

[scorpious]

Correct. It serves both functions. It actually has more functions even beyond this; if you get it you will realize it's an incredibly powerful/versatile speaker management system.

-Chris

Thanks chris, After going through about the DCX2496, i came to know that its lot more easier to configure the unit using a serial port with a laptop, and the free downloadable gui software for PC. do you happen to know if there is a mac version, i own a macbook and a desktop pc. I found a unopened Bstock unit on craigslist. not sure if I can trust or purchase a bstock unit for $150.

 

[scorpious]

Amazing .... NO noise/Hiss which ever way i connected the parasound P3 to the yamaha P2500s. i noised a very very small hiss when i bumped up the volume to full and my ears close to the tweeters. perhaps because the speaker cables and all the cables were jumbled up into a pile along with other electrical cables. i couldnt hear any noise or hiss from 2 feet away.

Due to lack of estate space the B&W 803s speakers, were less than a foot away from the walls. the output from the yamaha P2500s is very flat. perhaps i do need a equalizer to set things right. overall the setup and sound quality is awesome. I just cant imagine how its going to sound when i fine tune the system with a DCX2496, and lay out the cables properly. Also i just saw that I had extra cables, so i bi wired the amp to speaker. I dont know if it did any good or not, but just did it.

Ashish

 

[WmAx]

Amazing .... NO noise/Hiss which ever way i connected the parasound P3 to the yamaha P2500s. i noised a very very small hiss when i bumped up the volume to full and my ears close to the tweeters. perhaps because the speaker cables and all the cables were jumbled up into a pile along with other electrical cables. i couldnt hear any noise or hiss from 2 feet away.

Due to lack of estate space the B&W 803s speakers, were less than a foot away from the walls. the output from the yamaha P2500s is very flat. perhaps i do need a equalizer to set things right. overall the setup and sound quality is awesome. I just cant imagine how its going to sound when i fine tune the system with a DCX2496, and lay out the cables properly. Also i just saw that I had extra cables, so i bi wired the amp to speaker. I dont know if it did any good or not, but just did it.

Ashish

I guess the noise problem mentioned in that review was as I guess: using an amp with a fixed high input sensitivity that has no input gain controls.

BTW, the rack mount ears come off the P2500S if you don't like the look.

But, as you can tell, this amp can easily drive those speakers to very high levels, and you won't even get the fan to come on in the amp.

Since the speaker are so close to the walls, I highly recommend covering the walls with broadband absorbers. If you are looking for cheap and effective, GIK Acoustics is the answer. If you are looking for excellent value AND high quality cosmetics, check out Ready Acoustics Chamelon panels.

-Chris

 

[scorpious]

I guess the noise problem mentioned in that review was as I guess: using an amp with a fixed high input sensitivity that has no input gain controls.

BTW, the rack mount ears come off the P2500S if you don't like the look.

But, as you can tell, this amp can easily drive those speakers to very high levels, and you won't even get the fan to come on in the amp.

Since the speaker are so close to the walls, I highly recommend covering the walls with broadband absorbers. If you are looking for cheap and effective, GIK Acoustics is the answer. If you are looking for excellent value AND high quality cosmetics, check out Ready Acoustics Chamelon panels.

-Chris

Thanks Chris, The ears on the yamaha are just fine, the looks dont bother me nor my wife at all. I was just wondering, since the 803s has a front firing port, the placement to the wall shouldnt change the bass profile as drastic as it would be with a speaker with a rear firing port. Apart from that i am looking for a DCX2496. I just found that one can hook up a USB to serial cable to config the DCX with the GUI software.


Ashish