Nagra VPA monoblock power amplifier Specifications

Sidebar 1: Specifications

Description: Vacuum-tube monoblock power amplifier with class-A push-pull output stage. Tube complement per chassis: one ECC82, one ECC83, two 845. Input: balanced on XLR only, pin 2 hot. Loudspeaker terminals: 4, 8, and 16 ohm taps. Maximum output power: 50W (17dBW) when load is matched to output transformer tap. Input sensitivity: 400mV for maximum power. Input impedance: 100k ohms.
Dimensions: 14¾" H by 4½" W by 13" D (without tubes/feet installed). Weight: 30 lbs each.
Serial numbers of units reviewed: 5520103, 5520104.
Price: $13,200/pair. Approximate number of dealers: 7. Warranty: 1 year, 90 days on tubes.
Manufacturer: Kudelski S.A., CH-1033 Cheseaux, Switzerland. US distributor: Canorus (1999); Audiophile Systems, Ltd., (2002), 8709 Castle Park Drive, Indianapolis, IN 46256. Tel: (317) 849-5880, (888) 272-2658. Fax: (317) 841-4107. Web:

Audiophile Systems, Ltd.
8709 Castle Park Drive
Indianapolis, IN 46256
(317) 849-5880