I am looking for constructive criticism on my current audio set up. First let me describe my system.
Front - 1980 La Scalas with Bob Crites crossovers and tweeters.
Center - KLF C7 with Bob Crites diaphragm.
Subwoofer - Velodyne HGS-15.
Rear - KG 5.5s with Bob Crites diaphragms.
Amplification - five Bryston 7B-STs.
Pre-amplification - Lexicon DC-1.
CD player - Denon 1650 AR.
Cables - unbalanced 3 meter Audioquest Copperhead.
Room - 14' x 20' with 8' ceiling, heavy drapes on one wall, carpeted floor, two cloth couches and one leather couch.
Listening preferences - various, but some of my favorites are: hard rock (AC/DC, Motley Crue, Guns n Roses), rock (John Mellencamp, Bruce Springsteen, Jackson Browne, Dire Straits), country (Waylon Jennings)
My main concern is listening to 2 channel audio, but I do enjoy watching movies. My first question is if anyone has any strong opinions on pre-amplification. Could I greatly increase my sound quality by changing my preamp? My Brystons have both balanced and unbalanced inputs, but the Lexicon only has unbalanced outputs. It is my understanding that for a 3 meter run there are great advantages to using balanced connections. Would it be advisable to switch to a preamp that has balanced outputs? If so I would love to hear some recommendations.
My next concern is my choice for amplification. I did not purchase the Brystons solely because they offer 500 watts at 8 ohms. I have owned Bryston 4Bs and a 2B in the past. Before that I had an Adcom GFA 5500. I love the way the Brystons sound. The sound is very clean and there is excellent separation. One reason I chose the Brystons is for their build quality. It speaks volumes that they offer a 20 year warranty. I realize that 500 watts for La Scalas is overkill. My speakers currently sound very good, but in my opinion it is not until about 105 db that they really come ALIVE. I think they sound great at and above 105 db, but it is terrible for my ears and I can only listen to music at that volume for a short period of time. With a different amplifier would the lower volumes come alive more, or is the problem elsewhere (such as the preamp)?
Any ideas will be greatly appreciated.