Octave V 40 SE, Owner'S Manual

Page 1: ...V 40 SE Owner s Manual English...

Page 2: ...insights into the interaction of amplifier and loudspeaker With tube amplifiers in particular a general reluctance to depart from the classic circuit designs has not done the technology any favors Alt...

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Page 4: ...l 16 6 Advanced functions 6 1 Protection 18 6 2 Soft Start 18 6 3 Ecomode 19 6 4 Front Channel input bypass function 20 6 5 Regulated preamplifier output Pre Out 20 6 5 1 Using with a subwoofer 20 6 5...

Page 5: ...is set using precision controllers and a measuring system with 0 3 accuracy Each end tube is individually protected against overcurrent or overload If the permissible limit values are exceeded the de...

Page 6: ...g down the power In this sleep mode the V 40 SE draws only 10 W Idle current Therefore nearly no heat is produced by the running unit and the heater voltage and the high voltage for the power amplifie...

Page 7: ...cian Always get an engineer to replace blown fuses with ones of the same type and rating If your amplifier requires servicing please ship or take your equipment directly to OCTAVE or to one of our aut...

Page 8: ...r flammable materials gases or vapours Avoid areas where there may be heavy accumulations of dust or where the unit may be subject to mechanical vibration Place your OCTAVE amplifier on a stable even...

Page 9: ...for adjusting the BIAS 1 x 3 mm Allen key for removing the cover Owner s manual with certificate 3 2 Removing the grille 1 For your own safety make sure that the amplifier is not connected to a wall...

Page 10: ...art up of the heating and operating voltage is extremely important for the life and sound stability of the tubes 1 Make sure that the Ecomode switch on the back is in the off position 2 Connect your a...

Page 11: ...ll change from yellow to green The BIAS is set correctly and the device is ready to play If the display is irregular see chapter 7 3 Setting the BIAS 3 6 Connecting other components to the V 40 SE 1 B...

Page 12: ...table Tuner Speakers right left To wall socket Black Box Active subwoofer Recorder Multichannel source Additional line level analogue component e g video Additional line level analogue component e g v...

Page 13: ...line level input for tuner etc Pos 3 Aux 1 RCA line level input for video etc Pos 4 Aux 2 RCA line level input for video etc Pos 5 The electronic BIAS measurement system is activated see chapter 7 3 P...

Page 14: ...ched on Protection Red LED lights up when the electronic protection system has switched the amplifier off in response to an amplifier fault see chapter 6 1 Soft start Lights up during the soft start p...

Page 15: ...level input AUX 1 Additional RCA line level input for Video etc AUX 2 Additional RCA line level input for Video etc Record Recording output for tape or DAT Front Channel Input for front R L front cha...

Page 16: ...section see chapter 10 You should switch off V 40 SE using the power switch before connecting and disconnecting the Black Box AC supply socket IEC socket with integrated fuse holder The fuse is locate...

Page 17: ...utput tubes A fault in one of the preamp tubes which overloads the affected channel Once the protection system has cut in the only way you can turn the V 40 SE back on is to turn the on off switch off...

Page 18: ...Ecomode automatic is off the amplifier is on Eco on The Ecomode automatic is activated Ecomode is signal actuated after an approximately 10 minute silence Ecomode switches in automatically The soft s...

Page 19: ...s will block unwanted DC and low frequency signals 6 5 2 Using the V 40 SE in bi amped systems Another option provided by the adjustable Pre Out is bi amping via the V 40 SE s internal preamplifier Th...

Page 20: ...ing the BIAS current to two different values low and high Output tubes can be divided into two broad classes classic pentode output tubes for medium power amplifiers and modern high performance pentod...

Page 21: ...et the BIAS Turn the input selector knob 2 clockwise to the BIAS position to activate the measurement circuit pos 5 Signal input selection is disabled The 3 LEDs above each screw in the display panel...

Page 22: ...00 6550 KT90 see chapter 7 2 These tube types do not have to be operated at a high BIAS setting they will work perfectly well on the low setting However certain loudspeakers may benefit from the highe...

Page 23: ...w untested output tubes should be allowed a longer warm up period You should adjust these tubes after about 20 minutes 7 6 Running in the tubes All OCTAVE equipment is subject to a 48 hour soak test a...

Page 24: ...tteries If it still happens that the remote control does not work 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...

Page 25: ...he load This improves dynamic range separation depth soundstage size and articulation rendering the musical reproduction clearer throughout the entire frequency range The amplifier remains unaffected...

Page 26: ...e yellow LED indicates that that this procedure is taking place The discharge circuit also activates if the Super Black Box connecting cable is accidentally removed This is to prevent the Super Black...

Page 27: ...s you have two grounded components connected to the V 40 SE You must now unplug your components in reverse order to find out which of them is grounded Usually the hum will still appear even when the p...

Page 28: ...ridges and 12 V halogen lamps can produce strong radio interference when they turn on and off Depending on the wiring in your home this can result in clicks and pops in your loudspeakers To fix the pr...

Page 29: ...er turn the BIAS screws to the extreme right and leave them there If you have not been able to adjust the BIAS satisfactorily turn the adjuster screw back to its extreme left position Driver tube heat...

Page 30: ...the protection system to trip Should this happen switch the V 40 SE off and replace the problem tube Faulty driver tube In very rare cases a problem with one of the driver tubes can cause the V 40 SE...

Page 31: ...s stable with No Load and Output short circuited Output 2 x 40 W continuous 50 W Music into 4 ohms Frequency response 20 Hz 70 kHz 40 W 1 3 dB 5 Hz 70 kHz 10 W 0 2 dB THD 0 1 at 10 W into 4 ohms Signa...

Page 32: ...4 ohms from 30 Hz to 20 kHz at a variety of BIAS settings Diagramm 1 Curve 1 BIAS adjusted correctly Curve 2 BIAS 10 out Curve 3 BIAS 30 out 408 mm 415 mm Power Protection Soft Start Front Ch 0 10 Di...

Page 33: ...e curve clearly shows the low frequency extension of the V 40 SE The loss at 20 Hz is less than 0 2 dB Graph 3 Noise spectrum Noise spectrum at 1 kHz 5 W into 4 ohms there is no mains interference to...

Page 34: ...ot be checked but these will generally last for well over 10 years 4 Does the V 40 SE have to have all of its tubes fitted In principle the V 40 SE will also operate without tubes It is sometimes usef...

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Page 36: ...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...