Move over Fender and Marshall

[mortron]

I used a ruby on a 15" bass cab... Enough to annoy neighbors. The small amps are big fun IMO

 

[hitsware]

> The small amps are big fun IMO

+ 1 ^ 3

With the higher input Z there is so much more highs
that I need to re-adjust the tonestack ..... ; )

 

[Gnobuddy]

The small amps are big fun IMO

I recently breadboarded a quarter-watt, all valve, guitar amp. Connected to the stock speaker in my Fender guitar amp, it's too loud to overdrive in my apartment without worrying that I might be annoying the neighbours.

Guitar speakers are very efficient - it takes only a few tens of milliwatts to get loud by any reasonable standards. Approximately 30 milliwatts will get you 85 dB SPL at 1 metre using a 100 dB @ 1W @1m guitar speaker. 85 dB is loud enough to start damaging your hearing over time, despite what OSHA says.

-Gnobuddy

 

[hitsware]

I use small amps also for my stereo.
My usual level is ~ 1/8 Watt ( a Watt if I'm rockin' )
And that's with not that efficient of speakers .

 

[hitsware]

Buddy trying out new circuit ...........
YouTube

 

[Guerilla]

By the way. Ive borrowed the cable and serial for my brothers Rocksmith program. Its really great fun. Wish i had 2 cables for playing together. One can do lead or rythm and the other bass

 

[thoglette]

Having fun with Ruby

With 9 V actually not that much more power ...... But that seems enough for my studio .
BUT ........... It can be powered up with a heftier wart .

I'm loving the Ruby driving a crappy 8" PA speaker plus teleclone with 4-way mod and out-of-phase pickups: sort of psycobilly grind (think
waltons
or similar). And I'm pretty sure much of the fun is from the wall wart supply sagging - the bright green LED on mine dims substantially. I should try it with my 3A lab power supply but I'm having far too much fun.

 

[hitsware]

> I'm loving the Ruby driving a crappy
> 8" PA speaker plus teleclone with 4-way
> mod and out-of-phase pickups:

Groovy ! ....... : )
Do you think the input ( jfet ) buffer makes that much
of a differance with that type presentation ?

 

[Guerilla]

I'm loving the Ruby driving...
Sounds great. That 8 inch isnt crappy for guitar. Is it you playing? Cheers!

 

[thoglette]

I'm loving the Ruby driving...
Sounds great. That 8 inch isnt crappy for guitar. Is it you playing? Cheers!

No, not me. Pretty sure I've been on the same playbill as them. But that was a long time ago in a galaxy far, far away

The Ruby I've got is making a similar slightly grungy, lo-fi, hick-billy tone. Not the same but in the same ball park. At much, much lower volumes.

It's nowhere as aggressive as a Marshall tone, nor is it solid state fuzzzzz.

Do you think the input ( jfet ) buffer makes that much
of a differance with that type presentation ?

I think it's a mix of the FET front end followed by a power-amp with collapsing rails. Plus a truly crappy speaker set up (nothing under 150hz, nothing over 4khz, plenty of cardboard box flapping).

No tone control, so gotta rely on the axe set up to take out most of the bass to avoid pharting. My chino-line is set up with a Bill Lawrence 5-way switch and phase reverse switch (push/pull on volume). It's a pretty flexible setup while still looking like a "stock" tele.

 

[shanx]

I did a little setup of a 3 fet preamp running to a TDA-2030 at about 12W. With that into a 12" guitar speaker it got very loud!

 

[hitsware]

.......................................Mark II.......................................

I decided I like the feel of a 2 knob tone control.