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JET CITY AMPLIFICATION Custom 22 Owner's Manual

20 watt head
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Summary of Contents for JET CITY AMPLIFICATION Custom 22

  • Page 1 ’ ’...

  • Page 2: Do Not Open

    WARNING: To reduce the risk of fire or electric shock, do not expose this amplifier to rain or moisture. Before using your amp. Before operating the Custom 22 please make sure of the following:  First, connect the amp head to a speaker cabinet or other suitable load.
  • Page 3 Important Safety Message. 1. Read and keep these instructions. 2. Heed all warnings and follow all instructions. 3. Do not operate near water. 4. Clean only with a dry cloth. 5. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions 6.
  • Page 4 This means it is possible some of the features and components may be different from other Custom 22 amps. Therefor this manual will just cover the base features. Thank you for purchasing a JET CITY AMPLIFICATION product, we hope you love it.

  • Page 5: Controls And Operation

    Controls and Operation.  Input Jack  CRUNCH Preamp Gain: Adjust the amount of gain (distortion) that the amplifier produces in the CRUNCH Channel. Set it low for cleaner tones, or dial it up for some tube grit.  BRIGHT switch: On / Off ...

  • Page 6: Tube Layout

    Tube Layout. Custom 22 has 5 12AX7 Preamp tubes and 2 EL84 Power tubes. The 12AX7 tubes each have unique functions in the circuit, a brief overview of which is provided here. Counting from the first 12AX7 which is nearest to the input Jack:...

  • Page 7: Speaker Outputs

    You can also connect two 16 ohm loads to the two 8 ohm outputs. The output transformer of the Custom 22 is robust enough to manage a 4 ohm load, using the 8 ohm outputs, but we do not recommend lower than 4 ohms.
  • Page 8 If this product shows any defects within the specified warranty period that are not excluded under this warranty, Jet City Amplification shall, at its discretion, either replace or repair the product using suitable new or reconditioned parts. In the case in which other parts are used which constitutes an improvement, Jet City Amplification may, at its discretion, charge the customer for these parts.
  • Page 9 Both the product in its original package and the Return Authorization Number must be shipped to the address indicated by Jet City Amplification at the time the call is made. Shipments without prepaid freight will not be accepted.
  • Page 10 This warranty does not cover any such modification/adaptation, irrespective of whether it was executed properly or not. Under the terms of this warranty Jet City Amplification shall not be held responsible for any cost resulting from such a modification/adaptation.
  • Page 11  Any repair or opening of the unit by unauthorized personnel (user included) will void the warranty.  In an inspection of the product by Jet City Amplification shows that the defect in question is not covered by warranty, the inspection costs are payable by the customer.
  • Page 12 Colors and specifications may vary slightly from product. Products are sold through Authorized Re-Sellers only. Distributors and dealers are not agents of Jet City Amplification and have no authority to bind Jet City Amplification by any expressed or implied undertaking or representation.