My experience upgrading tubes and speaker for HT-1R

[seufer]

Hello,

I replaced the stock speaker by a brand new Celestion Eight 15 ( GBC-15) and it sound much better.
It's more closer to a hardrock tone than metal tone.
It's sound more like a marshall amp, but i found that the ISF is less efficient, especially when you turn it to the left (american amps)
It's not a problem for me because I love Marshall tone, but if you like American tones, may be you dont need to change the speaker

Stefan