my Super bass /B2000 year? | The unofficial Earth Sound Research web site

my Super bass /B2000 year?

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Fri, 2008-03-07 00:00

#1

insanegrafix

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Joined: 2008-03-06

my Super bass /B2000 year?

I have a B-2000 I was wondering about what year it is. On the back it says Earth Sound research a product of I.S.C audio farmingdale Ny. 11735 It is an all tube amp with Four-6l6 tubes and One 12AT7 and THREE 7025 MULLARD Tubes. But I have no way of knowing if they are all original or not. This amp sounds great. But My other question is If I replace these tubes with other tubes will that change the tone? I am kinda new to tube amps and I am learning all I can. i attached some pics of what I call the BLUE MONSTER.

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Sat, 2008-03-08 06:04

#2

boatman1

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Joined: 2007-12-12

Year of amp

hello.
On the bottom side of your amp there should be an access panel. Remove that panel, and on the bottom of your circuit board the tech. that worked on the amp. some times dates them there. If you have no accsess panel on the bottom, you will have to take the four bottom corner screws out of the amp. then, remove the tube screen cover on the back, and two screen support blocks. slide the circuit board out of the front side of the amp., use caution it takes a little careful work to get the circuit board out of amp shell. Inspect the bottom of the board for possible dates. Hope this info helps.

Wed, 2008-03-12 02:31

(Reply to #2) #3

insanegrafix

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Joined: 2008-03-06

1972

Thank you. I found it dated 1972. This site is great.

Sun, 2008-08-24 21:46

(Reply to #3) #4

ibmtech

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Joined: 2008-08-13

I bought a B2000 just the other day

I bought a B2000 Just the other day for forty dollars.
Its in near mint condition and it sounds great, for it was built in 1973.
I alway wanted a tube amp since I was a little boy.
I built one in my project class in high school.
I just did not buy tube amp, I bought history!

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