Verstärker von David Belles

Die amerikanische Firma Power Modules Inc. Inhaber David Belles fertigt exzellente Vor-/Endstufen.

Die Vorstufenserie besteht aus den Modellen:
21A - 28A Reference - LA 01
Die dazu passenden Endstufen lauten:
150A - 150A Reference - 350A Reference
sowie den Monos MB 200.

Im Bild sehen Sie die Vorstufe 21A. Hier einige Spezifikationen:

Remote controlled power, volume, and mute via a conviently sized hand-held remote.
Anodized aluminum control knobs
(2) high quality 12AU7 vacuum tubes
Gold-plated RCA and XLR input and output connectors
Single-ended input differential vacuum tube pair with emitter follower, buffered balanced outputs
Torodial power transformers, to eliminate stray magnetic fields
Fiberglass epoxy circuit board material
All aluminum chassis with black textured finish
Black or Silver anodized aluminum front panel
1% metal film resistors used throughout
Polypropylene coupling capacitors used throughout
Servo controlled volume potentiometer

Specifications
Inputs (5) unbalanced stereo
Outputs (all connections gold-plated) (1) unbalanced stereo main output
(1) balanced stereo main outout
(1) unbalalced stereo tape output
Distortion THD and IM 0.05%
Noise 90 dB a weighted
Input Impedance 50,000 ohms
Controls Listen, Record, Volume, Balance — gold-plated knobs
Power and Mute — push buttons
Remote Controls Power, Mute and Volume
Frequency Response 0.5 to 200,000 Hz within 3 dB

Einen Testbericht finden Sie in SOUNDSTAGE.COM