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The Acoustic Club

#6,041
4EC41557-BF38-4626-A5AB-E337F9A56B9A.jpeg
69F9FDEC-8B31-4850-99DE-B1A332C1D16B.jpeg
4EC41557-BF38-4626-A5AB-E337F9A56B9A.jpeg 69F9FDEC-8B31-4850-99DE-B1A332C1D16B.jpeg After years of searching, the wait is over. Finally got a 360 preamp head to go with my 361 cabinet that I have been dragging around since the 1980's. Any tech savvy Acousticians know where to source the dual volume pot (far right) for a 360 preamp head?

69F9FDEC-8B31-4850-99DE-B1A332C1D16B.jpeg 4EC41557-BF38-4626-A5AB-E337F9A56B9A.jpeg
 
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#6,042
KlankTank said:
View attachment 4361284 View attachment 4361286 View attachment 4361284 View attachment 4361286 After years of searching, the wait is over. Finally got a 360 preamp head to go with my 361 cabinet that I have been dragging around since the 1980's. Any tech savvy Acousticians know where to source the dual volume pot (far right) for a 360 preamp head?

View attachment 4361286 View attachment 4361284
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I'm so happy you got this one. I'll talk to my tech, he may have the right kind of volume pot.
 
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#6,043
Analogeezer said:
View attachment 4361182 I recently joined the forum so I will now join this club :)

Picture is my all original, 220 head from 1978....purchased new in September of 1978 for $330 (that would be nearly $1,400 today).

I probably did 300+ gigs with this thing back in the day but stopped gigging with it (except taking it to gigs as a backup to my rack system) around 1988. Last time I used it seriously was as part of a practice rig circa 1998 - 2000.

The reason it still looks so nice is I always carried it around in the factory box and made sure I was the guy who loaded it in, set it up and loaded it out.

With my original rig (two homemade 1 x 15" cabs in a stack each with a JBL-K140) the head actually fell off the stack (from like 5+ feet up) onto concrete twice before I started putting a towel around it to dampen the vibrations.

The amp kept playing, in fact I didn't even notice until I turned around and saw it on the floor. Lucky for me it flew straight off and flat onto the concrete, just smooshed one of the hard rubber feet a tad.

In all of this time (going on 43 years) I have had to make one repair; the power switch stopped working and when I opened it up I found a large ceramic cap across the switch had one of the legs broken off. Resoldered it and the switch then worked!

While it has some hum, hiss, and noise it's really no worse than it did as a new amp; older designs tended to be this way.

The head on top is one of the Guitar Center Acoustics; bought on a lark as an experiment. Other than the name and the logo these are NOTHING like the old ACC Acoustics.

I guess you could say nostalgia was part of the factor in my purchase decision but the fact it was only $199 (on sale, they normally are $279) was the major reason. A cheap way to check out the Class D thing.

If I could find a nice example of one of the original late 70's era matching 2 x 15" cabs (or a pair of the single 15" cabs) I would be all over that but most I have seen for sale look like they have been dragged behind a truck since the 1970's LOL.

Analogeezer
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Welcome to the club. I got the Acoustic bug back in the late 70's to with a 220 I bought in the U.K. I now live in the U.S. and replaced the 220 with a mint condition one i found on Reverb. I also have a 120 that sounds amazing!
I think these amps are overlooked and highly underrated. For what I play, which is old school Soul and Funk, these knock the socks off anything on the market today, and are a perfect pairing with a Jazzbass strung with flat wounds!
 
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#6,044
KlankTank said:
Any tech savvy Acousticians know where to source the dual volume pot (far right) for a 360 preamp head?
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I've never worked on a 360 head but Acoustic always used 24mm pots with long PC board leads and double flatted shafts. Those are very hard to come by in modern times, much less in a ganged dual 50K version. I've retrofitted solder lug type pots before with buss wire -- it works but definitely ain't pretty.
 
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#6,045
That deoxit is some great stuff! Wont need to replace the old volume pot as it sounds good as new. At some settings you can hear what sounds like morse code/rf signals. Is there an area that can be shielded to block this? I am right under a water tower with a ton of antennae on it.
JacklegBass said:
I've never worked on a 360 head but Acoustic always used 24mm pots with long PC board leads and double flatted shafts. Those are very hard to come by in modern times, much less in a ganged dual 50K version. I've retrofitted solder lug type pots before with buss wire -- it works but definitely ain't pretty.[/QUOTE
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#6,049
Roxbororob said:
It just so happens that I do....
I have some. If we can find out if they are the right size (they were on my 370). You can have them.

Edit: I bought them new when I "restored" my old beast (but I dont remember where). I was gifted a set of OEM whites so Im willing to extend the favour to you!

See photo in The Acoustic Club
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That is mighty kind of you! I'll take some measurements , but I'm sure they should be right. Obviously pay for shipping and any other expenses. Thanks Rob! I will be in touch.:thumbsup:
 
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#6,050
Hello Guys!
I need some help to confirm some stuff, just for peace of mind.
I thought I'd scored a 120 on Reverb, But that fell through. The seller claimed the shipping rates were to high.
It had some non- original graphic sliders that @Roxbororob had kindly offered to help me with. Big Thanks Rob!
This evening I purchased a 230 head on Music Go Round. I phoned the store to confirm the condition.
It looks to be is very good shape and the price was great, AND the shipping!
My Question is: Is this in fact a 220, but with a fuzz and reverb, that is de-activated if the foot switch is not plugged in?
Everything in TalkBass history confirms this but I just wanted to ask. Maybe @JacklegBass could help me out?
As always, great thanks for the expertise of out brotherhood!
 
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#6,053
Oops, I misread what you wrote. No, they are active without a footswitch.

With a footswitch you can disable the effects individually, overriding the front panel. To kill the reverb without a footswitch you would have to turn the front-panel knob all the way down to zero. To bypass the master volume you'd turn the MV knob all the way up to keep it from padding down the preamp. The graphic EQ is always on with no footswitch attached although of course you can set each slider to their mid-point to zero them out.

By the way, great score! I love the 220, but if I had to choose I'd take the 230. You can dial-in some grit with the master volume. I've kept my 330 and sold my 320 for that very reason.
 
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#6,054
@JacklegBass , Thank you Sir! I knew you would have the knowledge.
The 220 to me is all I need as far as the basic ACC tone. It has it all, and the graphic is perfect for " tuning in the room"
They are Plenty loud. They are later ACC heads, which means the components are in better shape, and, although Ive never played the fabled 360, I don't have any problem dialing in those tones.
Personally, I think the secret to these amps is actually NOT using them with the ACC speaker cabinets.
Those were designed for arenas and large spaces. I run mine through Eden 4x10 cabs and the results are much more manageable.
Thank You again!
 
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#6,056
I've got this 402 in the garage. It did not come with original drivers and I installed Eminence Deltas that I thought a good fit for the enclosures. 8 ohm speakers wired to present 4 ohm load. Initially experienced some choking or farting but I will fire it up tomorrow to get a better take on it. Of course it would be great to have confidence in dual 15s in the band setting.
20200223_132719.jpg
 
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#6,059
JacklegBass said:
Oops, I misread what you wrote. No, they are active without a footswitch.

With a footswitch you can disable the effects individually, overriding the front panel. To kill the reverb without a footswitch you would have to turn the front-panel knob all the way down to zero. To bypass the master volume you'd turn the MV knob all the way up to keep it from padding down the preamp. The graphic EQ is always on with no footswitch attached although of course you can set each slider to their mid-point to zero them out.

By the way, great score! I love the 220, but if I had to choose I'd take the 230. You can dial-in some grit with the master volume. I've kept my 330 and sold my 320 for that very reason.
Click to expand...
I did the same exact thing a few months ago. Sold my 320 and kept the 330 because of the master volume control.
 
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#6,060
ghostinthemach said:
Always a useful item around here...

Vintage 15" Speaker taken from an Acoustic 126 Bass Amp Combo | eBay
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Ha! Its funny that you posted that, because I'm the one who bought the 126 head out of the combo. I really wanted another 120 because they are light and plenty loud enough for what I do, but I didn't need the combo or want to pay the shipping. The fella kindly agreed to take the amp out and ship it separately . It should be arriving today. I'll post pics.
 
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