Which amp mod generally has the strongest effect on the amp's sound?

Dr. Lo

New member
In the case of tube amps, not transistor amps.

  1. Changing the speaker
  2. Changing the speaker cabinet's size
  3. Changing the type of preamp tube
  4. Changing the type of power amp tube
  5. Changing the values of the amp's resistors/capacitors/potentiometers
 
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Re: Which amp mod generally has the strongest effect on the amp's sound?

In the case the tube amps, not transistor amps.
  1. Changing the speaker
  2. Changing the speaker cabinet's size
  3. Changing the type of preamp tube
  4. Changing the type of power amp tube
  5. Changing the values of the amp's resistors/capacitors/potentiometers
IME, it depends on the amp's design and how you're using it. Some mods have a bigger impact on cleans while others are more noticeable with overdrive.

What do you have in mind?
 
Re: Which amp mod generally has the strongest effect on the amp's sound?

From that list, I think its 1, 5 or 2, depending on how significant your changes are.
 
Re: Which amp mod generally has the strongest effect on the amp's sound?

Hey Lo,

Please tell us what amp we're talking here and what you'd like to hear from it. We'll be able to give you much better advice if we know that. :)
 
Re: Which amp mod generally has the strongest effect on the amp's sound?

Hey Lo,

Please tell us what amp we're talking here and what you'd like to hear from it. We'll be able to give you much better advice if we know that. :)

I'm thinking specifically about a Fender Pro Junior. I want less harshness (upper mids I guess) and a bass response that is strong but better defined, which is difficult to get when playing through my Les Paul's neck humbucker (PGn) at high volume. Also, I want to reduce unpleasantly distorted overtones ("gost notes"?) when soloing at high volume above the 12th fret.
 
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Re: Which amp mod generally has the strongest effect on the amp's sound?

I'm not that familiar with the Pro Junior, but PG's are a bit harsh to begin with. At least, to my ears they are.

I think 6V6 tubes rather than the EL84's should be an improvement already, but this would be a rather extensive mod. Also, a decent 12" speaker would be good to get you a more balanced sound with bass, mids and treble instead of all spikey highs. But then you'd either have to put the chassis in a different cab or lug around your combo and an extension cab all the time.

But I think it's only fair to assume there's a point where a little amp can only do "so much". So perhaps you're ready now for the next step in amps. :)
 
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Re: Which amp mod generally has the strongest effect on the amp's sound?

In the case of tube amps, not transistor amps.

  1. Changing the speaker
  2. Changing the speaker cabinet's size
  3. Changing the type of preamp tube
  4. Changing the type of power amp tube
  5. Changing the values of the amp's resistors/capacitors/potentiometers

#4,3 and 1. In that order. Try a pair of JJ EL84 1st. Put a high quality N.O.S. 12AX7 in VI. Should hear a improvement by now. I saved the speaker for last being the most costly.
 
Re: Which amp mod generally has the strongest effect on the amp's sound?

You forgot #6 - Transformer upgrades.
 
Re: Which amp mod generally has the strongest effect on the amp's sound?

#4,3 and 1. In that order. Try a pair of JJ EL84 1st. Put a high quality N.O.S. 12AX7 in VI. Should hear a improvement by now. I saved the speaker for last being the most costly.

+ 100 on all !



Just yesterday i heard a Blues Jr. (i have one too) with a V30 in it, and it does NOT sound like mine at all !
The V30 is sooo much more efficient, thus much louder than the stock unit, and the over-all tone sounds way more (for a lack of better description) ballanced.

Needless to say, i am getting a V30 (or a Jensen) - but defenantly an upgarde on the stock speaker asap !!!
 
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