Audio Research PH3 Special Edition Phono Preamplifier in Black « on: 30 Mar 2021, 06:18 pm » Fully tested and working, set for the factory 47kohm impedance (which, per manual is compatible with both MM and MC cartridges, and in my experience worked fine with both) and 90pf of capacitance, this hybrid tube/SS phono stage is a classic!. Audio Research PH3 Tube for sale. Audio Research PH3 Phono Tube Preamp with 3 Sovtek 6922 Tubes with about 200 hours use.The unit is in excellent w.
Product: Audio Research PH3 Tube MM & MC Phono Preamplifier. Product SKU: 75446. Serial Number: 87181004. Input Voltage: 120V. Cosmetic Description: Good cosmetic condition with some minor visible cosmetic wear including a few scuffs on the faceplate top edge, and a scuff on the top left chassis edge. There are also slight scratches on both.. Product: Audio Research PH3 SE MM / MC Tube Phono Preamplifier; Black; Special Edition Product SKU: 45117 Serial Number: 47081003 Voltage: 120V Cosmetic Description: 7/10 Good cosmetic condition with some minor visible cosmetic wear including some small scrapes on the faceplate handles as well as a couple nicks on the top edge of the faceplate.. Outstanding condition overall - the condition.