Author Topic: Sunn Tone Stack  (Read 3158 times)

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Offline D.M.N.

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Sunn Tone Stack
« on: June 09, 2021, 10:43:19 am »
Out of curiosity, as I was messing about with the Duncan Tone Stack Calculator recently, does anyone know exactly what the Tone stack on the 60s Sunn amps, specifically the 2000s or 200s, was? I've read a variety of differing answers, namely modified FMV, or flat at 0, but no solid answer. And my understanding is the Contour doesn't quite work as a traditional mid control, but more of a sweep of what mid frequencies are accentuated. Any more concrete information would be appreciated, or if you have a model for the TSC and values that'd be fantastic.
House of the Rising Sunn........
1969 2000s
1972 2000s
1970 1200s
1968 1000s
1969 200s
2010 2000s DIY 2x15
1971 2000s 2x15
1969 2000s 2x15
1972 2000s 2x15
1968 1000s 2x15
1970 1200s 6x12

Offline Isaac

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Re: Sunn Tone Stack
« Reply #1 on: June 09, 2021, 12:38:22 pm »
I looked into that as well, some time ago. The conclusion I came to was that the tone stacks used were essentially flat (as flat as they can be, that is) when all tone controls were at zero.

I have not looked into the Contour control.

Offline Orion

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Re: Sunn Tone Stack
« Reply #2 on: June 10, 2021, 08:47:08 am »
DMN, message me if you'd like to sell one of your amps (1200, 2000, 1000, 200) :-)
1x Model T Reissue
1x Model T Second Generation
1x Model T First Generation
1x 1970's Sunn 4x12 Feng Speakers
1x 1970's Sunn 4x12 Original Sunn Alnico Speakers
1x 1970's Sunn 4x12 (Vertical / Staggered) Original Sunn Ceramic Speakers

Offline liwerks2

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Re: Sunn Tone Stack
« Reply #3 on: June 18, 2022, 06:20:21 pm »
I have attached a pdf of the PJ Baxandall white paper on tone stacks. It's not exactly what is being used here, but has good information for curious tech weenies.
Sunn Model T
Sunn 2000S
Kustom K100 combo
Ampeg SB-12
West Grande
2pc - 118RH cab
2000S cab
Sceptre (4x12) cab
Studio Bass (?) (2x15) cab
Fender Precision
Danelectro Longhorn
Gibson EB3
Ibanez bass (I don't know the model)

Offline Isaac

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Re: Sunn Tone Stack
« Reply #4 on: June 19, 2022, 11:21:08 am »
No, definitely not what was used on the 200S or 2000S, but similar to what was used in the 2G Model T.