This is a reprint of an original Review from 1973.This review is audio history! The Phase 400 was one oft he first "Super Amplifers" in the early 1970's. Designed by Bob Carver who would go on to form the "Carver" Corporation in the late 1970's. This review has a full test of the product, full specs, and commentary. I have many more Phase Linear Ads and Reviews on my eCRATER Store. THANKS! -Each Page is 8.5" by 11"Please check out my new Vintage Audio Web Site, www.VintageAudioArchive.com-Shipping is $3 in the USA and $6 ANYWHERE else, I ship WORLDWIDE! Each additional item is only $1 more to ship!-As always, your satisfaction is GUARANTEED at Electronics Archives! If you are unhappy with any purchase, email and I will get you a resolution or a refund!-Email me with any questions, I put 10-20 new Ads and Brochures on my site EVERY DAY! THANK YOU!Powered by eCRATER . List your items fast and easy and manage your active items.