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Cable Heathkit Power

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Cable Heathkit Power

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Cable Heathkit Power

NOOB(TUBE) AMP QUESTION?

I have an old Heathkit tube amplifier that I converted into an instrument amp. I just changed all the in/out plugs into 1/4" jacks.

I have hooked the outputs directly to the tabs on a 12" guitar loudspeaker and had fantastic results. however, I tried plugging it in via a guitar cable to a fender 12" cabinet and got almost no sound from it. I thought guitar cabs are literally just a speaker in an empty box but are there some kind of electronics in it that would require more power amplification?

I just want to use the the heathkit tube amp to power a guitar speaker but don't get what I need to do to make that work.

Hello there,

The first answer is correct. A guitar cable and a speaker cable are not the same thing. They make look the same because both have 1/4 inch phone plugs, but they are different inside.

Another factor to consider is the impedance of the speaker. First off, with a tube amp you will need to match the impedance of the amp and speaker cab. If your amp is 8 ohms, you need an 8 ohm speaker cab. An impedance mismatch could account for power loss. Also if you do play a tube amp with a speaker cab that is an impedance mismatch, you have a high risk of burning out the amp.

A speaker cabinet is just a box with a speaker in it. There will be insulation for acoustic effect. The only wiring will be wires from the speaker to the input jack.

Later,

Cable Heathkit Power

Written by admin

March 11th, 2010 at 10:48 pm