Pureology

Phase Linear 400 Amplifier

Description: I started repairing these units back in 1980. Several years ago I started to update, repair and restore them as a hobby. As I complete them I put them up on various sites for sale. Review my feedback for my previous 400's and 700B's. I'm not going to list each item called out in the service manual. All alignment, adjustment, and verification steps were preformed as per the service manual. THIS IS LAST I WILL PUT UP FOR SALE Like New Faceplate No Scratches or Nicks Electrolytic Capacitors On The Driver Board Changed New 100 Volt Filter Capacitors 15K uf per Rail Almost 3 Times The Original Value Installed Speaker Protection Circuit & New Banana Jacks Installed New Gold Plated Input Jacks Performed Bias Adjustment & Verified Bias Circuit Functions As Designed To Prevent Thermal Runaway Installed Correct Value AGX Fuses Replaced Output Devices With 12 MJ21196Gs. The Numbers Written On Each Device Are Measured Gain. It's Not A Requirement But Helps To Make Sure Each Pair Current Shares Well. I Install Them In Pairs With The Same Or Very Similar Gain. As Is The Case With All Vintage Electronics The Unit Is Sold In As Is Condition. I do not accept returns. I have each one professionally packed, insured and shipped in bubble wrap, custom pieces of styrofoam and doubled boxed. The grounding path of the input has been modified and is reflected in the posted measurements image. The THD is well below the original specification @ 200+ Watts Per Channel Into 8.2 & 8.7 ohms. Please feel free to ask additional questions.

Price: 1225 USD

Location: Boulder, Colorado

End Time: 2024-03-18T18:54:19.000Z

Shipping Cost: 140 USD

Product Images

Phase Linear 400 AmplifierPhase Linear 400 AmplifierPhase Linear 400 AmplifierPhase Linear 400 AmplifierPhase Linear 400 AmplifierPhase Linear 400 AmplifierPhase Linear 400 AmplifierPhase Linear 400 AmplifierPhase Linear 400 AmplifierPhase Linear 400 AmplifierPhase Linear 400 Amplifier

Item Specifics

All returns accepted: ReturnsNotAccepted

Model: Phase Linear 400

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