Linear Tube Audio ZOTL40 Reference User Manual Download | Manualshive

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Summary of Contents for ZOTL40 Reference

Page 1: ...ns extremely high voltages and the user should not attempt to service the amplifier Furthermore this amplifier generates radio frequency energy that can interfere with communications equipment Introduction The ZOTL40 Reference is a Class AB tube amplifier utilizing ZOTL Zero hysteresis Output Transformer Less technology It is a stereo power amplifier that can also be used in a mono block configura...

Page 2: ...g from careless use 4 The warranty is void if the serial number has been removed altered or defaced 5 This warranty is void if improper voltage is applied to any input or output 6 If Linear Tube Audio determines after receiving the unit that damage was misrepresented and has been caused by something not covered by the warranty the customer must pay for any necessary repairs before the unit is retu...

Page 3: ...hm Input Sensitivity 1 2V RMS for full output Input Impedance 50K Output impedance 1 6 Ohms Gain 23dB Noise 94dB Frequency Response 0dB 5dB 8Hz 50kHz Input Voltage Universal Tube Complement 2x 12AU7 2x 12AX7 4x EL34 Size W 17 43cm H 5 12 7cm D 13 875 35 2cm Weight 17 5 lbs 7 9kg ...

Page 4: ...igned auto switching power supply and can be used universally Hook up your source and speakers Once your system is set up and everything is plugged in turn your system on The Z40 Reference is powered on and off via the toggle switch in the center of the face plate When first powering on the tubes can take 30 45 to warm up before music starts playing Sometimes there is a high pitched or distorted s...

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Page 6: ...cuit that will shut down the amplifier internally if certain parameters are sensed The protection circuit can also be triggered by over driving the amplifier If the amplifier goes into protection bright white LEDs will light up on the audio board which should be visible through the top of the case on the left side if you are looking at the front of the amp More obviously if the amplifier goes into...

Page 7: ...ns which are designed in such a way that the white ceramic part may shift slightly This is an intentional design the tube socket is very secure Before changing tubes turn off the amplifier and wait at least 10 minutes to allow the stored power to discharge Avoid touching any of the components on the circuit board especially the vertical circuit boards Fuses The ZOTL40 has two fuses on the power bo...

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