How to tame the midrange???


I am almost there with my system, except that the midrange sounds harsh, grainy, and exceptionally digital. Female vocals in particular. It actually sounds like clipping, but I can hear it at any volume level. However, the problem is more noticable as volume is increased. I listen to a lot of acoustic music with prominent vocals, so this is a real problem.
The room is 26 x 28 x 9. Furnishings are 6 piece HT type seating and carpet....nothing else. No treatments at all. I/C cables are Radio Shack's best. I plan to do room treatments and better cables last.
I am thinking a good DAC might smooth things out a bit. Or maybe seperate 2 channel from HT by adding a good 2 channel preamp with HT pass through. (the front speakers are already on seperate amps) Maybe a preamp with tubes. I suppose having the Denon CDP modified is an option as well. My focus is 2 channel. HT sounds good enough as is, and is a low priority. Budget is around 5000.00, but flexible.
The gear is:
Sunfire Theatre Grand II processor
Denon 3910 ....no mods
Classe Seven Hundred Mono blocks for fronts
Adcom 300x7 for center and surrounds (all bi-amped)
B&W 800N fronts
B&W HTM-1 center
B&W CDM9-NT surrounds
Another consideration is that I listen to Comcast Music Choice digital music channels quite a bit through their Motorola box. I think that makes a stronger case for adding a good DAC. I am new at this and rely exclusively on Goner's advise. Your thoughts are greatly appreciated.
baffled
Gmood1....thanks for the final push in the right direction. I have at least two good high end stores nearby, so auditioning gear should not be a problem. I hear ya on the cables thing.......can't wait to do some comparisons with some borrowed cables. Thanks to all who responded.
Gmood is in my experience wrong and will only make your system brighter, and its a waste to have two preamps in any system. B&W makes for one of the finest multichannel systems on the market and using only two channels when listening to music is a waste of your investment.

The Carver prepro is pretty mediocre and primitive and the Denon 3910 could be out of spec (its seems a good deal I come across on their digital output frequencies are) which will make it harsh as a transport, you should never use the analog outs of any DVD player BTW. You can have your Denon checked for its digital output frequency (it would be a warranty repair) and sell the Carver and atleast get an Arcam....but only one brand of prepro will truely fix your problem based on the info you have given.

Having setup about 20? B&W surround systems with Meridian, the grain in the midrange comes from the tweeked up treble for the hard of hearing. To their credit B&W has made this peak in treble very deliberate and very fixable. Meridian processors(any), their treble tilt control (-4 to -6)perfectly reverse the treble grit and grain caused by the jumped up sales floor treble and I have to say this combination is superb. You will have a new speaker, it makes that much difference.

The hardest part about owning the Meridian is people here who haven't heard it won't think its better than their two channel system. I will tell you Gmoods advice will only change your grit into glare. Because its a speaker amplitude problem, not a an electronics issue like you might think. Your cables are not adding grit either.

"I listen to Comcast Music Choice digital music channels quite a bit through their Motorola box. I think that makes a stronger case for adding a good DAC. I am new at this and rely exclusively on Goner's advise. Your thoughts are greatly appreciated."

I know this maybe obvious but your prepro should be a great DAC?, that is one of its 5 jobs! No? Upgrade your prepro and upgrade, DAC, Pre and overall sound at one time.

the path less traveled......
"the grain in the midrange comes from the tweeked up treble for the hard of hearing"

HeHe, thats nice of them to build speakers for the hard of hearing....wondering why they don't use this in their ad copy.

Dave
Baffled: You have so many things to try along the way. And I suspect you will discover huge refinements as you seek to determine the original problem with the midrange anomolies. Rather than guess with so many changes, what I would suggest you do is try to find someone in your area, maybe an A'gon member, with lots of experience in speaker placement, differences between cables, line stages and DACs. Someone who also understands the benefits of power conditioners, room treatments and isolation would be an even greater asset.

I have befriended a couple local A'gon members and they have thrown so many ideas and suggestions my way that have lead to major improvements in my system. And they were right on from the start so I did not have to try things over and over to get them right. Such relationships become great friendships and both sides learn much from such an exchange. It's a great feeling to help out another audiophile.

A good relationship with a dealer too is a good idea but they will most likely steer you to the products they carry.

So indicate where you live and maybe someone here will offer to come over and give you some tips and who knows where that might lead.

John
velocitydls@yahoo.com ,

No where in my post did I mention Baffled using two preamps.I said to swap out the processor for a real preamp.
Yes Meridian processors are great..for movies that is. For music these units suck! His focus is two channel not multi channel music. Maybe you should reread the entire thread before singling out a poster.

How will changing to a good tube preamp and going to a good Dac with a better power supply than the dvd player make the speakers sound bright? Guy you have no idea what your talking about. Maybe some of the B&W stuff is tipped up in the treble..will not argue that. I listened to an older pair of 800 series a few months back at a friends home. These speakers didn't have the tipped up tweeter as you describe.

I've owned a Meridian Stack and it will not give the performance in two channel as a dedicated preamp...sorry no dice!
It's apparent you've only listened to multi channel and HT.LOL

IME most of the harshness and grain comes from crappy opamps and noisy/ bad power supplies in the equipment upstream with poor filtering. Bad connections can cause this also. Hardly ever is it the speaker that causes grain. Especially a speaker of this caliber.