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  Review: Phase Linear 700b Amplifier
I have on a mission to find a clean natural sounding amp to power the ALIII. The ribbon drivers present a very difficult load. I found a 700 b rebuilt by an electrical engineering professor who does it as a hobby. WOW. So this a a mint 700b and maybe upgraded slightly from original. Without going into long analysis of music this amp has massive power and transparency and it does sound more tube than solid state unless you drive it to clipping. The closest thing I have heard that compares is the Boulder or Levinson amps which are thousands of dollars. In 1978 money this amp approached the $5000.00 price tag. Anyway I only paid $500 and what a steal. It is like buying a Ferrari for the price of a Chevy Cavalier. And being vintage it will go up in value. I would avoid overdriving. However, if this amp was used on efficient speakers of the cone design one would be operating at about 5-10 watts giving you massive reserves and low distortion. This amp would probably blow a high efficiency speaker. I assure you that you will be listening to all your music all over again. This amp proves that solid state does not have to sound harsh.

Associated gear
Carver ALIII speakers
Carver CT17 preamp

Similar products
Audio Research, Krell/ Mark Levinson

by Crawfojb on 02-04-05 
  Follow ups
Click title to read one, or click date to read all below it.

02-05-05   I hope you enjoy it.   Twl

02-05-05   Yes i had one of these new in the late 70's. it will cl ...   Hiend2

02-05-05   Twl...put that in your lowther, and smoke it...literall ...   Eldartford

02-05-05   Yep. what a way to go! sometimes i have nightmares a ...   Twl

Review: Phase Linear 700b Amplifier
I first heard the Fuzz Linear in the mid 1970s; great amp for driving Bose 901s.
Bobgates 12-05-05


12-05-05   You will find some interesting reading about these amps ...   Zargon

03-15-06   This amp when refurbished is an excellent vintage perfo ...   Crawfojb

03-16-06   All phase linears ran hot. i sold these amps in the ear ...   Porziob

05-26-06   I have a series ii, and have had no trouble with it. i ...   Whitefalcon44

05-26-06   I have a series ii, and have had no trouble with it. i ...   Whitefalcon44

10-28-06   i still have the series 1. it ran hot and i installed ...   jnewman2@

12-22-06   Yes i had the original 700b when it first came out then ...   Hiend2

08-17-07   this is a follow up. this amp as well as any vintage ...   Crawfojb

09-05-07   Not a bad solid state amplifier from the 70's.....mr. c ...   Marcatio

04-20-10   I know i'm late adding a follow-up 2 1/2 years after th ...   Hdblackdog

06-13-10   The 700b is good but for some reason the 400 sounds eve ...   Barrysandy

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