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Absolare Push-Pull Скачать руководство пользователя страница 4

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ABSOLARE Push-Pull Mono Amplifier User Manual 1.2

1. General Description

The Absolare Push-Pull Mono Amplifier is a transformer coupled, zero feedback,
monoblock power amplifier, supplied in matched pairs for stereo amplification. It
features an all tube, point-to-point construction signal path. It is available in both
transformer balanced (XLR) and unbalanced (RCA) input versions.

2. Safety Issues and Warnings

-

Be sure the voltage setting of the unit matches the applied voltage to power

input.

Operating voltage is fixed and must only be changed by an authorized service

agent.

-

Do not touch tubes while operating.

Tubes are extremely hot devices and also

contain very high voltages.

-

Do not open bottom covers.

There are no user serviceable parts inside the units.

-

Do not operate the amplifier without an output load.

4

– 8Ω speaker or

equivalent load should be connected to speaker terminals when the Amplifier is
operating.

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Содержание Push-Pull

Страница 1: ...ABSOLARE Push Pull Mono Amplifier User Manual ...

Страница 2: ...2 ABSOLARE Push Pull Mono Amplifier User Manual 1 2 ...

Страница 3: ...ng and Placement 5 4 Installing the Tubes 6 5 Connecting the Cables 9 5 1 Power cables 9 5 2 Signal Cables 9 5 3 Speaker Cables 9 6 Operating the Unit 10 6 1 General Operation 10 6 2 Setting the Bias Levels 10 6 2 1 845 Bias Levels 11 6 2 2 EL34 Bias Levels 12 7 Troubleshooting and Maintenance 13 8 Technical Specifications 13 ...

Страница 4: ...ed RCA input versions 2 Safety Issues and Warnings Be sure the voltage setting of the unit matches the applied voltage to power input Operating voltage is fixed and must only be changed by an authorized service agent Do not touch tubes while operating Tubes are extremely hot devices and also contain very high voltages Do not open bottom covers There are no user serviceable parts inside the units D...

Страница 5: ...arate support feet They do not have support feet fixed in place Feet can affect the sound quality significantly Feet must be positioned underneath each unit in direct contact with the aluminum base plate not the leather clad MDF covers There are three areas where the aluminum base plate is exposed through openings in the leather clad MDF bottom plate You can use either three or four feet After eac...

Страница 6: ...6 ABSOLARE Push Pull Mono Amplifier User Manual 1 2 4 Installing the Tubes There are total of 5 tubes in each monoblock Placement of tubes is shown below ...

Страница 7: ...st be installed in correct orientation The small indicator pin on the lower side of the tube base must be aligned with the small hole on the right side of the tube socket as illustrated in the figure below CAUTION Incorrect positioning of 845 tube may seriously damage the amplifier ...

Страница 8: ...ump in the center as a key for correct positioning Align it with the corresponding notch in the tube socket while inserting The 12AT7 ECC81 tube has one missing pin acting as a correct positioning key Align the missing pin with the missing hole in the tube socket while inserting ...

Страница 9: ...se true balanced input features and the system may become more susceptible to noise This setting is supplied to connect unbalanced XLR preamplifier outputs Preamplifiers with true balanced XLR outputs should be matched at the LOW gain setting 5 3 Speaker Cables Speaker binding posts can handle spade lugs banana plugs or bare wire Polyethylene knobs are chosen instead of metal ones to reduce extra ...

Страница 10: ...the bias settings Please refer the bias settings section 6 2 1 After turning each Amplifier on the power indicator LED on the front face plate will start to blink You will not hear any sound until the indicator LED stops blinking to illuminate continuously which indicates all the capacitors are charged and internal voltages are stabilized Absolare Push Pull Mono Amplifiers will be ready to operate...

Страница 11: ... via a multimeter at 2V DC or 2000mV DC setting Insert the black probe into black socket and red probe into one of the green sockets on the rear panel You should read a value about 0 500V 500mV for each tube If the readings are different then adjust the bias level via potentiometers near the EL34 tubes A small flat screwdriver will be necessary to access internal bias trim pots ...

Страница 12: ...ou should aim for as close to 0 0V as possible by turning the adjustment pot with a small flat screwdriver If you cannot cross the zero value i e you only get positive or negative values in entire adjustment range you should turn off the unit wait until tubes are cooled down swap EL34 s and repeat the adjustment procedure above This will occur when one of the EL34 tube s gain is very different tha...

Страница 13: ... source Internal fuse for 845 tubes may be blown out Call your dealer Noise hum in the sound Check grounding of power input cables and source If the problem is persistent contact your nearest ABSOLARE dealer 8 Technical Specifications Zero Feedback Push Pull Architecture Point to point construction Tubes 2 x 845 2 x EL34 1 x 12AT7 ECC81 for each unit Output power 85 Watts Input 1 x RCA transformer...

Страница 14: ...USA LLC 40 Pemberton Road Nashua New Hampshire 03063 Phone 212 229 1842 E mail info absolare com ABSOLARE SERVICE EUROPE Mozartstraat 157 1962AL Heemskerk Netherlands Phone 31 61 399 3049 E mail info absolare nl ...

Страница 15: ...15 ABSOLARE Push Pull Mono Amplifier User Manual 1 2 2020 ABSOLARE ...

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