Harman Kardon Citation II - Tube Amp - Premium Restoration

Delivery within 100 miles of the Boston Area -- No Shipping

Amplifier: Fully Restored Premium Rebuilt 'Masterpiece' Harman Kardon Citation II $2300.00 - [Premium Tube Option - Add $850.00]

Sought-after Harman Kardon Citation II, designed by Stu Hegeman, delivers wide bandwidth, high power and fantastic imaging. 60 Watts per channel. 6 premium vintage American 12BY7 tubes in the driver positions, and a set of new Electro Harmonix KT-88 output tubes.

This unit is a complete, premium rebuild from a Citation II chassis and transformers.
Every other component & all wiring is new and of the highest quality. Sports custom Zebrawood faceplate and rigid perforated aluminumbottom cover.

Rebuild Features:
Custom point-to-point turret boards to accommodate premium components
Silver internal wiring, Cardas silver solder used throughout
High-end passive components – Caddock, Takman, Mundorf, etc.
High capacity, channel-isolated power supplies
Jim McShane bias supply with toroidal transformer New ceramic gold-plated tube sockets
Cardas input jacks & five way binding posts
IEC power socket
Top panel Bias & AC Balance measuring jacks
Zebrawood front panel with a blue LED indicating high voltage supply is active
Custom high strength perforated aluminum bottom panel for high cooling airflow
Original faceplate/bottom plate included. Swapping faceplates from custom is easy.

Design changes/modifications:
The power supply is split to follow the channels for lower distortion
and extra power reserve when one channel is stressed. Unlike the
original design, the chassis is not used as ground. The cross-chassis
silver wire ground bus terminates to the input RCA shields for greatest
noise rejection.

Jim McShane bias power supply with toroidal transformer:  Apparently the original HK power transformer has a weld in the bias winding that can sometimes briefly arc.  That can take out an output tube.  Jim's new bias supply kit completely replaces that part of the original power transformer with a new and known reliable circuit.  The original bias supply leads from the PT are insulated and tied down under the chasis.

Tubes Included:
Six premium vintage American 12BY7 tubes in the driver positions,
Four new Electro Harmonix KT-88 output tubes biased at 75mA in the output positions.
Option – Add second set of vintage British Genalex KT-88 output tubes (+ $850.00). These tubes provide the kind of 3D image where you find yourself immersed in the music.

Thoroughly tested, this amp is healthy and runs within specifications. It has the characteristic wide-band extended sound signature of the HK Citation II with deep tight bass, beautiful extended highs and a well-articulated, neutral mid-range for realistic 3D imaging.

Initial state and modifications detailed in this thread:

http://bit.ly/AK-HKcitII

All restoration work done by skilled audio enthusiasts who have over 20
years restoring collectable vintage tube equipment at the highest level.
They are active in AudioKarma.org and I can provide feedback on their
other projects.