Octave RE290 Operation & User’s Manual

19, 20 7. TUBES 7.3. BIAS measurement facility The BIAS measurement facility makes it easy for you to check and adjust the idle current of the output tubes. Getting the BIAS setting right for all four tubes is critical for both the sound of the pow…

26, 27 10. SPECIFICATIONS AND DIMENSIONS Power Amplifier. Configuration: push pull pentode circuit, class A/B; negative grid voltage adjustable separate for each power tube through ten turn precision regulators. Special wideband output transformers using …

29, 30 11. FAQ 1. Can you operate the RE 290 when no loudspeakers are connected? Yes. The RE290, like all OCTAVE amplifiers, is fully protected against open circuit operation, i.e. the amplifier will come to no harm if it is operated without loudspeakers connected…

23, 24 8. USING THE (SUPER) BLACK BOX Description OCTAVE, with the Black Box technology, offers an instrument for optimizing the OCTAVE amplifier in respect to the speaker. This flexibility is a unique feature of the OCTAVE brand. The dynamic and tonal stabi…

18, Octave RE290 19 7. TUBES 7.1. Removing the grille Operating the amplifier without its protective grille is dangerous and not recommended. To remove the grille: 1. For your own safety, switch the amplifier off using the on/off switch or disconnect the power cord…