pat
New Around These Parts
good night maybee i will feel better after my chemo treatment in the morning sorry if i offended any body
AmenAmen
Glad you beat it Pat. Keep beating it, live long and prosper...Well I feel much better today, my doctor told me I am CANCER FREE. (Stage -4, Un-Curable, Un- Opprable ) I beat it ! Thank You Jesus. Huh? Now LORD will you help me with my English and Spelling?
Thank You. .It is like starting life all over. I am going to get it right this round!!!Glad you beat it Pat. Keep beating it, live long and prosper...
Now who out there, that referbs Phase Linear Preamps? I have the P3800 and the 2000 series 2 . Never had any work done on them as far as I know I have had them for many years. I feel they are worth the time and money if not real expensive. Worth checking into. Any help would be greatly appriciated.
I am just getting all kinds of good news lately. Thank You that is more than a fair price. I will be putting both in my budget right away. Thanks again Sniffer for your reply. At the risk of sounding like a ''BOZO'' what does WOPL stand for?There are many of us who have done those preamps in the past, take your pick.
$300-$400 is about the going rate.
WOPL Sniffer is thrifty with his words.I am just getting all kinds of good news lately. Thank You that is more than a fair price. I will be putting both in my budget right away. Thanks again Sniffer for your reply. At the risk of sounding like a ''BOZO'' what does WOPL stand for?
Very interesting, I wish I had half the smarts as Bob Carver!!! Thank You for your time sharing this info with me. Never owned a Bob Amp of any type. Sure would love to here one, built right that is. My facanation with Carver equipment is growing thanks to this sight. Thanks to all of you. PatWOPL Sniffer is thrifty with his words.
When you obtain (or drag it out of storage) a big Phase Linear amplifier, it is forty to fifty years old, having been originally released in 1972. We limit ourselves to the Phase Linear 400 and the Phase Linear 700 amplifiers in original and Series II flavors because these were the ultimate Bob Carver designs for loud, clear 'sound reinforcement' (we avoid the Phase Linear 200 and the later DRS Phase Linear amps released when Pioneer bought Phase Linear in 1979). In fact, many rock bands (Pink Floyd, Aerosmith, etc.) in the 1970's and 80's used the venerable PL700B in their stage sound setup. Unfortunately, these amplifiers had a tendency to 'latch up' in the front end, meaning the small signal transistors would turn on fully and allow the power supply voltage (75 or 100 Volts) to go directly to the speaker outputs, due to a tiny flaw in the Bob Carver design, and no one really understood why. This is the reason so many of these amplifiers were abandoned, speakers became more expensive and no one wanted to fry their new pair of AR, Polk, Advent, Infinity, Klipsch... well, you get the idea.
In the early 2000's, Joe, who owns and runs White Oak Audio, decided he could improve on the original Phase Linear design using modern components and computer-aided circuit design, neither of which were available to Bob Carver at the time. Joe offered these new amplifier Control Boards as an upgrade or to 'fix' a blown "Flame Linear" or "Blaze Linear" amplifier. We now have Revision G1 of Joe's original upgrade.
Due to Joe's excellence in audio and electronic engineering, the 'latch up' problem was solved and we often wonder if Bob Carver would have been the Bill Gates of stereo, if he had been able to correct this flaw in his design. He left Phase Linear in 1977 to form Carver in 1979 and then Sunfire corporation in 1994 and still designs amplifiers today. The last Phase Linear amp built was in 1983.
So, any Phase Linear 400 or Phase Linear 700 amplifier with a White Oak Audio Control Board is designated a WOPL, to give credit to Joe for improving the circuitry, and to Phase Linear for manufacturing the original product. Joe added bulk capacitors, new light bar designs, more rugged output transistors, backplane wire boards, faceplates, and even a new PL700 chassis to his list of products offered here:
http://www.whiteoakaudio.com/estore.aspx