Summary of v70se
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V 70 se.
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3 introduction congratulations and thank you for choosing octave! V 70 se you are now the owner of one of the world's most innovative and reliable amplifiers. Look after it, and it will provide you many years of listening pleasure. You often hear people claim that tube amplifier design has not progr...
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5 contents page introduction ................................................................................................. 3 1. Description of the v 70 se ........................................................................... 7 2. Safety instructions ...........................................
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7 1. Description of the v 70 se the new octave v 70 se integrated amplifier is a push-pull pentode design delivering 2 x 70 w rms output power (into 4 ohm loads). As with all octave models, all research and development (r&d) and production has been conducted exclusively in-house, and the amplifier i...
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8 2. Safety instructions 2.1. Before you begin before using the v 70 se for the first time, remove the grille and install the power tubes! (see section 3.2 "removing the grille"). Replace the grille before switching the v 70 se on. Operating the amplifier without its protective grille is dangerous a...
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9 2. Safety instructions 2.2. Placement 1. Location octave equipment is designed strictly for use in a dry domestic environment. Do not use it in the open air or in damp environments! Never place plants or liquid-filled containers on your octave equipment. Take care to avoid dropping objects or spil...
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10 3. Getting started 3.1. Unpack and check the contents of the box. Inside carton outer carton tube compartment owner's manual and warranty card power cord and tools remote control package contents standard - v 70 se serial equipped with 6550 c power tubes - 5 power tubes packed separately - power ...
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11 3. Getting started 3.3. Installing the power tubes the power tubes are in a separate box in the tube compartment insert the power tubes into their sockets as shown on the tube layout. Ensure that you correctly locate the anti-rotation lug on each of the tubes. Anti-rotation recess on the tube soc...
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12 3. Getting started 3.5. Checking the power tubes – setting the bias 4) turn the mode selector knob clockwise to position 6 = bias. The input leds will extinguish. Mains power switch pos 1 pos 2 pos 3 pos 4 pos 5 pos 6 pos 7 cd1 tuner front ch. Aux 1 aux 2 cd 2 bias 5) five leds will now illuminat...
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13 3. Getting started 3.7. Connection options: overview tuner tapedeck, a-d-converter, pc black box + + tuner l r gnd 230 v ac / 450 w left speaker right speaker black box connector achtung! Black box nur bei ausgeschaltetem gerät anschließen bzw. Abtrennen! Caution! Disconnect the amp from mains be...
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14 4. Controls – the front panel power switch 0 = off; 1 = on. Power led and soft-start led illuminate. The soft- start led extinguishes after the start-up period of 50 seconds. Input selector this is used to select the desired input signal. A green led indicates the selected input on the display. P...
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15 4. Controls – the front panel bias adjustment bias regulators and corresponding led array for each power tube. Remote control receiver to ensure optimum operation of the ir remote control, do not cover this window. Status indicators power indicates that the unit is switched on. Protection red led...
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16 6. Connections – the rear panel ecomode eco off: ecomode automatic is off. Eco on: ecomode automatic is on. Amp off: the power stage of the amplifier is off (see chap. 6.3.). Cd 1 cd line level input, rca. Tuner tuner line level input, rca. Aux 2 rca line level input for video etc, or mm/mc input...
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17 6. Connections – the rear panel loudspeaker outputs speaker connection terminals. Red = positive terminal, black = negative terminal. The speaker negative terminal is connected to ground. (super) black box connection the (super) black box is an outboard power supply capacitance upgrade for the po...
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18 6. Advanced functions 6.1. Protection the v 70 se features a comprehensive electronic monitoring and protection system. This system will automatically switch off the v 70 se if case of a fault occurring in the power section. The protection system has been designed to keep the unit safe from the c...
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19 6. Advanced functions 6.3. Ecomode the ecomode serves to reduce heat and unnecessary power consumption when the unit is switched on but not in use. After 9 minutes without receiving signal, the v 70 se ecomode is activated, turning down the power. In this “sleep” mode, the v 70 se draws less than...
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20 6. Advanced functions 6.4. Front channel input - bypass function the input labeled “front channel“ is coupled with a relay that bypasses the volume regulator. In the “front channel” selector position, the v 70 se functions as a stereo amplifier. The signal of the front channel input is not availa...
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21 7. Tubes 7.1. Removing the grille see chapter 3.2. 7.2. Tube layout v 1 v 2 v 3 v 4 v 5 v 6 v 7 output tubes: v1 - v4: 6550 c standard v1 + v2 left channel v3 + v4 right channel driver tubes: v5 ecc83 (12 ax 7) v6 + v7 ecc81 (e 81cc, 12at 7) alternatively 2 x ecc 82 the pentode output stage topol...
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22 7. Tubes 7.3. The bias measurement system 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 power amplifier section and for the service life of the t...
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23 7. Tubes there is an upper adjustment limit to the "high" bias setting, which is indicated by the green and red leds lighting up at the same time, and a lower limit to the "low setting, where the yellow and green leds light up. The lower limit should be used with "smaller" output tubes such as th...
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24 7. Tubes 7.4. Replacing the tubes driver tubes replacement driver tubes require no adjustment. Output tubes general procedure: 1. Switch off the amplifier and allow it to cool down for 10 minutes. Remove the old tubes and fit the new ones. 2. Before you switch the amplifier back on, turn all bias...
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25 8. The programmable remote control select the v 70 se by pressing the aux button once. You can now adjust the volume by repeatedly pressing the vol + and vol - buttons. You will find more detailed information on programming the remote control in the separate operating instructions. 9. Phono (mc /...
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26 10. 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 stability of an amplifier is strongly dependent up...
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27 12. Using the (super) black box 12.2. Super black box option operation blue power led the blue "power" led illuminates when the power amplifier (or integrated amplifier) is switched on via the amplifier's power on/off switch. Yellow unload led the yellow "unload" led (discharge control circuit) i...
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28 11. Troubleshooting 11.1. Faults caused by external issues buzzing and hum in the speakers possible cause: multiple grounds hum in an audio system is often caused by several system components having their own separate grounds. It is particularly common in systems containing tuners, vcrs or satell...
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29 11. Troubleshooting possible cause: induction another possible cause of hum could be the stray field of a transformer generating interference in a device or cable. You can easily diagnose this problem by switching off the problem component. To fix the problem to reduce this kind of interference...
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30 11. Troubleshooting 11.2. Faults caused by tubes, faulty tubes like other octave products, the v 70 se is equipped with a double safety system. This means that the amplifier will be protected from damage if a component (tube) should fail and trip the electronic protection. The protection system p...
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31 11. Troubleshooting tube faults that trip the protection system the protection system continuously measures the current flowing into the four power tubes. Depending on the problem, this current may exceed a specified limit and cause the protection system to switch the power stage off. The red pro...
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32 12. Specifications and dimensions in- and outputs: inputs: 5 x rca, 1 x xlr 1 x rca home theatre bypass input outputs: 1 x rca record output, 1 x regulated preamplifier output, 1 x loudspeaker output power amplifier output configuration: push pull, advanced pentode mode, grid 2 voltage 300 v, idl...
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33 12. Specifications and dimensions 451 mm 150 mm 415 mm approx. 490 mm with black box connection diagrams thd at 4v into 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.
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34 12. Specifications and dimensions graph 2: frequency response, 5 w into 4 ohms audio precision frequency response v 70 se 5 v / 4 ohm -10 +5 -9 -8 -7 -6 -5 -4 -3 -2 -1 -0 +1 +2 +3 +4 d b r a 20 60k 50 100 200 500 1k 2k 5k 10k 20k hz the frequency response curve clearly shows the low frequency ext...
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35 13. Faq 1. Can you operate the v 70 se when no loudspeakers are connected? Yes. The v70se, 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. 2. How do you recognize a faulty tube...
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Octave audio germany www.Octave.De 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