Metropoulos Forum

here are some clips of my AFD style 100 watt metro amp. ill post more as i record them. tell me what you think of my amp.

1960 classic les paul straight in
1971 marshall cab with 25 watt and 30 watt greenbacks (original to cab)
amp settings:
bass-6
trebel-6
mid-6
lar/mar master-dimed
gains-dimed
presence-5
resonance-5
4 out of stages of gain on
JJ ecc83 pre amp tubes
Winged C EL34's

Hi I was thinking of building something similar. Did you do a #36 or #39 mod or neither?

those clips are very old, from when i first built it. ive got it tweaked out now. i should have some new clips soon. its based off of #36 and #39 as i dont know whats involved with #34. check out the sir thread if you want to build this amp.

rockgod212 wrote:those clips are very old, from when i first built it. ive got it tweaked out now. i should have some new clips soon. its based off of #36 and #39 as i dont know whats involved with #34. check out the sir thread if you want to build this amp.

This clip sounds killer.

wow.......these are so old, I forgot I posted them. those clips were with a stock 2203, .1u over the 10k plus another 10k/.1u xtra stage with el34's through v30's I believe. i think i was using the lower filters as well on those. it was very very bright, too bright for me, but sounded good for recording purposes. im getting ready to switch back over to el34's right now and I will tweak the amp again, as I didn't really care for the 6550's all that much. i might go back to the lower filters as well. not the greatest playing though. ive improved on that lately, so I will do some clips again later down the road.

rockgod212 wrote:wow.......these are so old, I forgot I posted them. those clips were with a stock 2203, .1u over the 10k plus another 10k/.1u xtra stage with el34's through v30's I believe. i think i was using the lower filters as well on those. it was very very bright, too bright for me, but sounded good for recording purposes. im getting ready to switch back over to el34's right now and I will tweak the amp again, as I didn't really care for the 6550's all that much. i might go back to the lower filters as well. not the greatest playing though. ive improved on that lately, so I will do some clips again later down the road.

Really.. Stock. Did you raise the filtering? Was there enough gaiin for you with the 10k and the .1u on the third preamp?
Regardless, i would love to hear the new tweaks

i think it did have the 470k/2n2 peaker which gives more mids, so I stand corrected.
yeah I started with '68 spec lower filters and i ended up raising the filters back to '69 spec, I might lower them back to '68 spec if the amp feels too stiff, its the screens filters that matter, so I might go back to the 32u/32u cap cans.......no another 10k/.1 wasn't enough gain. its got a 3.3k/.22u in it now, so I will tweak it from there once my tubes come in, I got some Svetlana el34's this time, I prefer winged c's, but im not paying 200 bucks for tubes unless they are NOS tubes.

rockgod212 wrote:i think it did have the 470k/2n2 peaker which gives more mids, so I stand corrected.
yeah I started with '68 spec lower filters and i ended up raising the filters back to '69 spec, I might lower them back to '68 spec if the amp feels too stiff, its the screens filters that matter, so I might go back to the 32u/32u cap cans.......no another 10k/.1 wasn't enough gain. its got a 3.3k/.22u in it now, so I will tweak it from there once my tubes come in, I got some Svetlana el34's this time, I prefer winged c's, but im not paying 200 bucks for tubes unless they are NOS tubes.

I gotcha.. Im new to tweaking amps. I assume it takes time. I hate my sound. Lol
I get confused but I am trying.. Your clips give me hope.. I only have 3 tubes presently. Cascaded.
What is the reason for raising the filtering?

the filters can affect how the amp feels, stiff or loose depending on the screens and pre amp filters. a bit complicated. lower filters can have a better bass response to them.

rockgod212 wrote:the filters can affect how the amp feels, stiff or loose depending on the screens and pre amp filters. a bit complicated. lower filters can have a better bass response to them.

Well i guess i will learn in time.. Lol
So what do u think about the splawn amps?