Summary of RE 320
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Re 320 owner's manual english.
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3 introduction congratulations and thank you for choosing octave! Re 320 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 progre...
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4 contents page introduction ......................................................................................................... 3 1. Description re 320 .................................................................................. 6 2. Safety instructions 2.1. Before you begin ..............
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5 contents page 8. Option black box and super black box 8.1 the black box option .......................................................................................... 24 8.2 connecting to the amplifier .................................................................................. 24 8.3 the...
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6 1. Description of the re 320 the new octave re 320 stereo power amplifier is designed to deliver 2 x 130 w rms output power (into 4 ohms loads).Peak output power climbs up to 200 w per channel. As with all octave models, all research and development (r&d) and production has been conducted exclusiv...
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7 1. Description of the re 320 power management the re 320 input and output tube heaters as well as its high-voltage rails are logic-controlled to ensure that the conduction of the output tubes as well as the input stage voltages are constantly monitored and controlled by the power management system...
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8 2. Safety instructions 2.1. Before you begin 2.1.1. In case of emergency: disconnect the plug from the mains supply never use an amplifier that is damaged or faulty. Make sure that it has been labeled as defective and that it cannot be used until it has been repaired by a qualified service enginee...
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9 2. Safety instructions 2.1.5. Before connecting make sure that the voltage of your amplifier matches your local supply voltage. 2.1.6. Grounding / earthing this amplifier is a protection class 1 device, which is the operation with an earth conductor. As a result, a three-pin power cable with a pro...
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10 3. Setting up 3.1. Unpacking, package contents. Scope of delivery re 320 tube stereo power amplifier 1 set power tubes packed separately tube layout diagram power cord 4.0 x 100 flat-bladed screwdriver for adjusting the bias owner's manual with warranty card 3.2. Removing the grille operating the...
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11 3. Setting up 3.3. Installing the power tubes the power tubes are packed 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 s...
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12 3. Setting up 3.5. Checking the power tubes – setting the bias for the first function check you don’t have to connect the loudspeakers or the preamp. The trim pots are located next to their respective tubes. Next to each trim pot you will see a pilot lamp, which shows which tubes have been select...
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13 4. Operation 4.1. Re 320 front panel legend power switch 0 = off; 1 = on. The power led illuminates that the unit is on input selector this is used to select the desired input signal. Rca: rca input xlr: balanced xlr input, see chap. 6.5 muting: muting function of the input’s, see chap. 6.4 power...
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14 5. Connections 5.1. Re 320 rear panel legend xlr input balanced input: pin 1: ground, pin 2: +, pin 3 – rca input unbalanced input loudspeaker terminal right channel loudspeaker output binding posts to connect the speaker cable. Red = positive terminal, black = negative terminal. You can connect ...
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15 5. Connections 5.1. Re 320 rear panel legend power selector sliding switch to adjust the output power of the re 320 depending on the output tubes. (see chapter 6.1) loudspeaker terminal left channel loudspeaker output binding posts to connect the speaker cable. Red = positive terminal, black = ne...
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16 6. Advanced functions 6.1. Power selector, alternative output tubes the power selector allows adjusting the re 320 in accordance to the output tubes. Position high is reserved for the standard kt 150 or kt 120 tubes. In the high position the re 320 is able to deliver up to 200 w rms output power....
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17 6. Advanced functions 6.3. Electronic protection system the re 320 features a comprehensive electronic monitoring and protection system. This system will automatically switch off the re 320 in case of a fault occurring in the power section. The protection system has been designed to keep the unit...
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18 6. Advanced functions 6.6. Ecomode (power saving mode) the ecomode serves to reduce heat and unnecessary power consumption when the unit is switched on but not in use. After 10 minutes without receiving signal, the re 320 ecomode is activated, turning down the power. In this “sleep” mode, the re ...
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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. 2. Pull the grille upward to remove. See chapter 3...
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20 7. Tubes 7.3. Bias measurement electronic the bias measurement electronic 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...
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21 7. Tubes 7.3.1 how to set the bias make sure that no signal is playing through the amplifier when you are adjusting the bias. It is sufficient to switch on the muting function; there is no need to disconnect the speakers. The tubes should have reached operating temperature. The unit should run at...
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22 7. Tubes 7.3.2 led graphs, advanced adjustments of the bias setting 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 ...
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23 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 bia...
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24 8. Option black box and super black box description with the black box technology octave 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 depend...
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25 8. Option (super) black box 8.3. Super black box option legend (1) blue power led the blue “power” led illuminates when the power amplifier is switched on via the amplifier’s power on/off switch. (2) yellow unload led the yellow “unload” led (discharge control circuit) lights up for approx- imate...
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26 9. Troubleshooting 9.1. Faults caused by external issues 9.1.1. 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 s...
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27 9. 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, m...
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28 9. Troubleshooting 9.2. Faults caused by tubes, faulty tubes like other octave products, the re 320 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 prot...
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29 9. Troubleshooting 9.2.2. Tube faults that trip the protection system the protection system continuously measures the current flow 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 ...
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30 10. Technical data 10.1 specification power amplifier output power into 4 ohms: power selector high: 2 x 130 w rms power selector low: 2 x 75 w rms peak power into 4 ohms: power selector high: 200 w one channel 2 x 150 w both channels power selector low: 140 w into 8-ohms load the output power is...
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31 10. Technical data 10.2 dimensions 10.3 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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32 10. Technical data 10.3 diagrams graph 2: power bandwidth power bandwidth of both positions of the power selector. The maximum output power of 130 w in position “high” and 75 w in position “low” is constant in the range from 25 hz up to 30 khz. Graph 3: noise spectrum noise spectrum at 1 khz / 5 ...
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33 11. Faq 1. Can you operate the re 320 when no loudspeakers are connected? Yes. The re 320, 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.