Sound City Slave Unit 120W being hot-rodded!

[Hermansson Amplification]

New amp on the bench! It’s a Sound City Energiser Slave Unit 120 with six EL34′s.

This is going to be a one channel amp with two gain controls, bass, middle, treble, volume, presence, punch, volume, a gain switch (3-4 gain stages), a three way saturation switch and a three way bright switch.

I've installed two new preamptubes.

And the front panel got ten new holes.

And as always it will be wired point to point.



And here we have the result:

Clips:

Guitar: Greco EGF1000 SD JB in bridge and SD 59 in neck.
Cab: Malmberg 4x12 with Celestion Greenbacks
Mics: Shure SM57 and Sennheiser MD421

Guitar: Hagström Swede with a Lundgren M6 in the bridge and the original neck pickup.
Cab: Malmberg 4x12 with Celestion Greenbacks
Mics: Shure SM57 and Sennheiser MD421

Guitar: Greco EGF1000 SD JB in bridge and SD 59 in neck.
This clip is recorded with an Iphone 4S to capture the sound in the room.

 

[university81]

awesome work and clips there, very nice tones

 

[bubbastain]

LOVE IT! All of your builds are awesome but this one is my favorite because I love single channel amps. You and two other builders are the only ones that give me a major Tone Boner.

 

[Hermansson Amplification]

awesome work and clips there, very nice tones

Thank you!

LOVE IT! All of your builds are awesome but this one is my favorite because I love single channel amps. You and two other builders are the only ones that give me a major Tone Boner.

Thanks! I'm pleased to hear that

 

[Aidanspaghetti]

Amazing again as usual!
DO you do mods for the general public?

 

[Hermansson Amplification]

Amazing again as usual!
DO you do mods for the general public?

Thank you! Yes I do.

 

[Sierra Voodoo]

I simply can't get enough of your amps. They are truly awesome!

 

[bmi]

You use pretty good components.

 

[dawnofdreamx97]

very cool man, i bet it has tons of headroom with 6 el34's , whats the plate voltage at ?

 

[Hermansson Amplification]

very cool man, i bet it has tons of headroom with 6 el34's , whats the plate voltage at ?

Yes, the plate voltage is 468V.

 

[skoora]

Nice to see and hear some great old iron being put to better use. The old tubes got raided years ago but the iron remains. I never cared for Sound City's and now I think of all the chassis's with original iron out there that could become stuff like this.

 

[mooncobra]

your mods always sound great!!!! I would personally love to have one!!!

 

[ke2]

Henrik, hvor mye per det vanlig at du tar betalt for modifikasjoner?
Her bygger du jo en ny forsterker, men hvis jeg hadde en Laney LH50 som jeg ville ha mer og tightere dist fra?

Det er jo ikke så langt fra Norge til Sverige...

 

[Hermansson Amplification]

Henrik, hvor mye per det vanlig at du tar betalt for modifikasjoner?
Her bygger du jo en ny forsterker, men hvis jeg hadde en Laney LH50 som jeg ville ha mer og tightere dist fra?

Det er jo ikke så langt fra Norge til Sverige...

Hej!
Det kan ordnas! Jag skickar ett PM!

 

[midnightlaundry]

Sounds great. But what is this? IT has goop on it. Super secret, eh??

 

[TrueTone500]

The one amp I regret selling was a Mark Cameron modded Carlsbro Top 100 with those wonderful Partridge transformers.

 

[Hermansson Amplification]

Sounds great. But what is this? IT has goop on it. Super secret, eh??

It's a thing I use in the power supply, and since it has goop on it it's super secret