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CONTENTS 

 
 

 

 

 

Page 

Foreword 
 

1. 

Introduction 

1.1.   What makes OCTAVE amplifiers special? ...............................................................  

1.2.   Description of the Jubilee preamplifier .....................................................................  

 

2. 

Safety precautions 

2.1.   Before you begin ......................................................................................................  

2.2.   Placement ................................................................................................................  

2.3.  Warranty ...................................................................................................................  

 

3. 

Getting started

 

3.1.  Unpack and check the content .................................................................................  

3.2.  Connecting the amplifier ..........................................................................................  

3.3.  Running in ................................................................................................................  

 

4. 

Operation

 

4.1.   Jubilee preamplifier front panel ................................................................................  

10 

4.2.   Jubilee preamplifier top view ....................................................................................  

11 

 

5.  

Connections

 

5.1.   Rear panel Jubilee preamplifier ...............................................................................  

12 

5.2.   Rear panel Jubilee power supply .............................................................................  

14 

 

6. 

Remote Control for volume 

6.1.  Remote control transmitter .......................................................................................  

15 

6.2.  Remote control receiver ...........................................................................................  

16 

 

7.  

Tubes

 

7.1.   Tube layout ...............................................................................................................  

17 

7.2.   General information ..................................................................................................  

18 

7.3.   Replacing tubes ........................................................................................................  

18 

 

Options

 

8.1.   Stepped Attenuator for volume ...............................................................................  

19 

8.2.   HT Bypass ...............................................................................................................  

19 

 

9.  

Troubleshooting

 .....................................................................................................  

20 

 

10.   Specification 

10.1.  Technical data ..........................................................................................................  

22 

10.2.  Dimensions ...............................................................................................................  

23 

10.3.  Diagrams ..................................................................................................................  

25 

 

 

Summary of Contents for Jubilee

Page 1: ...Jubilee Preamp Owner s Manual English...

Page 2: ...rs As a result achieving improved amplifier sound quality requires greater levels of technical innova tion than ever before OCTAVE specializes in the ongoing development of upgradeable circuit designs...

Page 3: ...2...

Page 4: ...peration 4 1 Jubilee preamplifier front panel 10 4 2 Jubilee preamplifier top view 11 5 Connections 5 1 Rear panel Jubilee preamplifier 12 5 2 Rear panel Jubilee power supply 14 6 Remote Control for v...

Page 5: ...he best possible operating conditions for the tubes and thus for the amplifier itself OCTAVE tube technology OCTAVE amplifiers are equipped with a proprietary control and monitoring sys tem we call Po...

Page 6: ...interference and hum which is particularly critical when it comes to complex multi amp combinations connected via balanced inputs The low impedance output is yet another feature designed to enhance th...

Page 7: ...es should also only be replaced by a qualified technician Always replace fuses with ones of the same type and rating If your amplifier re quires servicing please ship or take your equipment directly t...

Page 8: ...ght Do not operate your OCTAVE amplifier near flammable materials gases or vapors Avoid areas where there may be heavy accumulations of dust or where the amplifier may be subject to mechan ical vibrat...

Page 9: ...onnecting your source components and information on pin connections in Section 4 1 Connect the cables from your signal sources such as CD player to the appropriate inputs XLR or RCA CINCH phono on you...

Page 10: ...Running in Tube equipment generally takes about three months to run in and start sounding its best Daily use is useful during this period but it is not necessary to leave the equipment on contin uous...

Page 11: ...en the gain switch on the top of the preamp is set to gain low Tape 1 Playback of recorder connected to the Tape 1 input Source Playback of the source that has been selected with the input selector kn...

Page 12: ...turns off The gain and phase switches should not be operated at the same time or immediately after each other as this could cause cracking noises through your system PHASE SWITCH Phase switching of t...

Page 13: ...er XLR or RCA CINCH can be used at a time The PHONO inputs are not suitable for use with a turntable without an external phono preamplifier GND GROUND Additional ground connection for external units l...

Page 14: ...r AUX input RCA CINCH Additional line level input for other sources CD input unbalanced RCA CINCH Additional input for CD player Tape inputs outputs Analogue inputs outputs for two recording devices D...

Page 15: ...the power supply with the Jubilee preamp before you connect the power supply to the mains Fuse holder Warning Fuses should be changed only by a qualified technician 5 x 20 mm IEC standard Slow blow t...

Page 16: ...ork after changing the batteries remove the new batteries and wait for the minimum of 30 minutes After half an hour you can insert the new batteries again and the remote control should work 3 Mount th...

Page 17: ...sthetic to drill a hole in the Jubilee front panel we decided to use a solution with an external receiver Procedure 1 Connect the receiver with the plug on the rear panel 2 Put the receiver wherever y...

Page 18: ...with equal systems The systems of tube 27 28 must be matched to less than 5 In position 27 the use of the genuine special tube E80CC is allowed The use of this tube is only in this position practical...

Page 19: ...10 minutes to cool down 3 The Jubilee s automatic discharge system will discharge the power supply capacitors The red LED 31 will be lit during this time see Tube Layout Section 6 1 To avoid an elect...

Page 20: ...low tolerance fixed resistors the channel tolerance across the entire control range remains under 0 1 dB The hard gold plated contacts on the switch have an extremely low transfer resistance and thus...

Page 21: ...e knob 2 POSSIBLE CAUSES Input selector knob or mode selector knob not set correctly REMEDY Check the setting of the Input Selector 3 and Mode Selector knob 1 POSSIBLE CAUSES Power amplifiers or sourc...

Page 22: ...n the other Recording equipment reel to reel cassette CD or DAT recorder with a faulty input or lead can overload the Record output and cause an imbal ance between the left and right channels REMEDY C...

Page 23: ...Hz Crosstalk rejection between inputs 86 dB 10 kHz Crosstalk rejection tape play record 98 dB 10 kHz Input impedance RCA CINCH 100 kOhm Input impedance XLR 2 kOhm Output impedance 33 Ohms RCA CINCH 2...

Page 24: ...23 10 SPECIFICATION 10 2 DIMENSIONS Dimensions Power Supply in mm 152 220 480 ca 530 152...

Page 25: ...24 10 SPECIFICATION 10 2 DIMENSIONS Dimensions Jubilee Preamplifier in mm 480 ca 560 152...

Page 26: ...AGRAMS Frequency response Extremely linear frequency response No fall in level at lowest bass frequencies Distortion spectrum Distortion spectrum at 1 kHz only second harmonic k2 is discernible no res...

Page 27: ...26...

Page 28: ...specifications in pursuit of better OCTAVE logo is a registered trade mark of Andreas Hofmann Copyright byAndreas Hofmann OCTAVEAUDIO T 49 0 7248 3278 ANDREAS HOFMANN F 49 0 7248 3279 REUTAECKERSTR 5...

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