300B SE tube amplifier
300B SE tube amplifier in single ended (class A) monoblock construction (2 devices) in black steel sheet metal housing.
Approach and circuit design:
The audio signal passes through the cinch input sockets to the grid of the double triode – the first amplifier tube – and is amplified by voltage. Via a galvanic coupling (without coupling capacitor), the amplified signal is fed to the control grid of the second triode. This has the task to supply the current to control the power triode.
The coupling takes place via a high-quality coupling capacitor to decouple the signal alternating voltage and to supply the control grid of the end triode. The end triode works in single end class A mode. The operating point of the end tube adjusts itself via the cathode resistance (self-biasing). The high-quality output transformer decouples the high-impedance, high-voltage part of the amplifier from the low-resistance loudspeaker connection. This technique of signal amplification is minimal and equipped with high quality selected components. With this development and the choice of components we offer you, our customer, an audiophile product of a very high standard.
Mains voltage: 230V AC1ph, PE, N
Power consumption: approx.: 90VA
Dimensions: H x B x T 210mm x 214mm x 400mm
Output power: 7,5W an 5 Ohm
Input impedance: 50kOhm
Input sensitivity: 2Vss
Input via RCA jacks
Standard Tubing: 300B JJ tube, 6SN7GT tube
Standard wooden front– and back wall: oak, wild cherry, beech heartwood
300B SE Chrome Line Edition
300B SE Customized
– unique up your amplifier Edition –
Identical to 300B SE Black Edition but with a custom finish of your choice.
Wooden front and back wall: any choice (except tropical wood)
Caption : any choice
Housing finish: any choice of color