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Summary of Contents for Octave JUBILEE Mono
- Page 1 JUBILEE Mono...
- Page 2 – quite literally – provide you with of amplifier technologies and their side ef- hours of musical pleasure for many years to fects, OCTAVE is able to achieve a musical come. quality and degree of reliability that seemed...
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Page 3: Table Of Contents
Placement..................... 2.3. Bevore powering up................Operating components ................ 3.1. JUBILEE MONO rear panel..............3.2. JUBILEE MONO top control panel ............Getting started ..................4.1. Unpack and check the contents ............4.2. Removing the grille................4.3. Installing the power tubes .............. -
Page 4: Introduction
We design and achieve consistently high sound quality. make our own custom transformers. We OCTAVE amplifiers are equipped with a power maintain extremely high quality standards management system whose design is unique. through close cooperation with specialist... -
Page 5: Jubilee Mono Product Description
OCTAVE fits its power interference and fluctuations in the supply amplifiers with an electronic protection system voltage, and an ability to accept compatible as a matter of course. -
Page 6: Safety Instructions
Grounding servicing, repairs and other modifications to This amplifier is a protection class 1 device OCTAVE equipment are carried out only by a (with an earth conductor). To exclude the risk of qualified technician. Fuses should be also be electric shock in the event of a fault, the unit changed only by a qualified technician. -
Page 7: Placement
6. The power switch for the JUBILEE MONO is mechanical vibration. located on the rear panel (see Chapter 3.1 - Place your OCTAVE amplifier on a stable, even Operation). -
Page 8: Operating Components
3. OPERATING COMPONENTS 3.1. JUBILEE MONO rear panel Bei Leistungsvorwahl auf max: Regler drehen, bis Messgerät Wert 1.000 anzeigt. BIAS-Regler When power preselection on max: turn control until the measuring instrument shows a value of 1000. limited edition 1 : GROUND... - Page 9 3. OPERATING COMPONENTS Power inlet Model identification plate AC input, IEC socket Model and serial number Power switch Bias adjustment The plug on the power cord should be viewed as a disconnect device. For this This control sets the bias for all eight reason, please ensure that this plug is power tubes simultaneously.
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Page 10: Jubilee Mono Top Control Panel
3. OPERATING COMPONENTS 3.2. JUBILEE MONO top control panel... - Page 11 3. OPERATING COMPONENTS On/Standby (Power) button Bias button The button in the top control panel can This button reduces the bias current to a only be used to switch the amplifier on third of its nominal value. when the power switch has been The low bias setting is useful when the turned on at the rear of the unit.
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Page 12: Getting Started
4. GETTING STARTED 4.1. Unpack and check the contents Package contents for two Jubilee Monos: 16 power tubes 6550 C packed separate (8 for each Mono) Service bag content: Owner's manual with warranty 2 x 4 spare tubes for each mono 8 x equipment feet for replacing the wheels gloves Tools: 3 screwdrivers:... -
Page 13: Installing The Power Tubes
Jubilee Mono 1 Jubilee Mono 2 You can mix up the 8 tubes for each Jubilee Mono because they are precisely matched and have nearly the same value. But please don't mix up the tubes from Jubilee Mono 1 to Jubilee Mono 2! Insert the power tubes into their sockets. -
Page 14: Recommended Procedure
4. GETTING STARTED 4.4. Recommended procedure Please note: Before you use your LED A goes out once the start phase has amplifier for the first time, we been completed. Your amplifier is now strongly recommend that you to ready for use. You must now deactivate the follow the procedure described in muting function... - Page 15 4. GETTING STARTED Functional test Bias high After checking the readings in the low When the selector switch points to an output setting, you can now activate Bias high.. tube, you will therefore notice that the meter Bias high is indicated by the blue LED D. will read <...
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Page 16: Bias Measurement Facility
5. BIAS MEASUREMENT FACILITY... -
Page 17: How The Bias Works
5. BIAS MEASUREMENT FACILITY 5.1. How the bias works The bias measurement facility makes it easy The protective screen does not have to be for you to check and adjust the idle current of removed to do this. the output tubes. Getting the bias setting right The driver tubes inside the unit require no for all eight tubes is critical both for the sound adjustment. -
Page 18: The Electronic Protection System
6. ELECTRONIC PROTECTION entered the tube, the heater filament will 6.1. How it works burn out. This type of tube failure will not result in damage to other parts of the Your amplifier's electronic protection system amplifier. You should replace any tubes constantly monitors the operating current in the suffering from this problem (see Chapt. -
Page 19: Tubes
7. TUBES 7.1. Tube layout Output tubes: V1 - V8: KT 88 or 6550 You can also use pin-compatible tubes such as the KT 66 or EL The output tubes must be se- lected. Selection criterion: identical cathode current and grid bias voltage Driver tubes: V9 - V11:... -
Page 20: General Procedure For Changing Tubes
7. TUBES 7.2. General procedure for changing tubes Tubes should only be replaced by qualified Adjustment after the tube changing personnel. New driver tubes General procedure: Replacement driver tubes require no adjustment. Switch the amplifier off and disconnect the plug from the mains supply. -
Page 21: Removing The Protective Assembly To Change Tubes
7. TUBES 7.4. Removing the protective assembly to change tubes 7.4.1. Removing the protective grille to change output tubes Operating the amplifier without its protective grille is dangerous and not recommended. Tubes should only be replaced by qualified personnel. Unscrew the four Torx screws several 1. -
Page 22: Removing The Side Panel To Replace Driver Tubes
7. TUBES 7.4. Removing the protective assembly to change tubes 7.4.2. Removing the side panel to replace the driver tubes. Driver tubes normally do not require replacement (see Chapt. 7.3.) Operating the amplifier without the side panel is dangerous and not recommended! Tubes should only be replaced by qualified personnel. -
Page 23: Troubleshooting
Although the Jubilee Mono is also solution. grounded, it is equipped with a special technology that reliably prevents ground loops. Should... -
Page 24: Technical Data And Dimensions
9. TECHNICAL DATA AND DIMENSIONS In- and Outputs Inputs 1 x RCA, 1 x XLR Outputs 2 x Loudspeaker output Amplifier Power output 250W into 4 ohms 10Hz - 80kHz / 0.5 dB Frequency response 0.1% at 10W into 4 ohms Total harmonic distortion ... -
Page 25: Technical Data, Diagrams
10. TECHNICAL DATA, DIAGRAMS Distortion in % at 10W into 4 ohms between 30Hz and 20kHz at a variety of bias settings 0.05 = 0,025% 0.02 0.01 Curve 1: Bias adjusted correctly; bias high with selected tubes Curve 2: Distortion curve with unselected tubes Curve 3: Distortion curve bias low Frequency response... - Page 26 10. TECHNICAL DATA, DIAGRAMS Noise spectrum (1kHz at 10V) -100 -120 -140 -160 -180 The FFT analysis demonstrates the superb spectral purity of the output signal. No mains-borne noise (normally at 50 and 100Hz) is present THD between 30Hz and 20kHz 0.01 0.001 0.0001...
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Page 27: Faq
11. FAQ Can you operate the amplifier when no loudspeakers are connected? Yes. OCTAVE amplifiers With faults 1 and 2, the amplifier will protected against open circuit con- still operate, although the channel ditions, i.e. they will not be damaged if... - Page 28 The cable manufacturers are now The impedance and efficiency of offering cables that have supposedly modern loudspeakers is not an issue been designed specifically for tube for OCTAVE amplifiers. The often- amplifiers. Although such cables may quoted damping factor be of good quality, there is no need to...
- Page 29 We reserve the right to alter and improve the specifications in pursuit of better. OCTAVE logo is a registered trade mark of Andreas Hofmann. Copyright by Andreas Hofmann. Reproduction in whole or part is prohibited. edited EN2010 OCTAVE AUDIO Germany...
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