Recent content by Triboost

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    [Ampeg B15R] Following Jess Oliver's advice...

    I hear you Beans! And thanks for posting all the schematics. Like I said, this thread is becoming a great resource for these 15R's... I'm printing these and storing them with the crossover in case I ever try to use it again (not likely, but you never know). I'm guessing a component is blown...
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    [Ampeg B15R] Following Jess Oliver's advice...

    Guys, I'm not sure why my 15r sounds better - but I swear it does! Not a subtle change. Definitely better. If that schematic beans posted applies to my cab, maybe my crossover was just broken? I doubt it was pre-modded in any way. But if I recall correctly, my crossover's rotary switch...
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    [Ampeg B15R] Following Jess Oliver's advice...

    Feel the same way.... don't really care for treble-y bass tones (Jamerson/Dunn/McCartney/etc. are my templates). But a 3K roll-off is too low. You lose the sound of the pick articulating the note. Well, we subscribe to the theory of continuous improvement around the ol' studio here :)! But...
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    [Ampeg B15R] Following Jess Oliver's advice...

    Thanks! I just finished testing the cab using the stock speaker. Tried out a '72 Fender Tele Bass and an early '70s Gibson SG bass. Big improvement! Now I can hear the mids! That ultra-low problem is tamed too, which was the big issue I've been trying to solve. I can even dial in a...
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    [Ampeg B15R] Following Jess Oliver's advice...

    Ok, I went ahead and finished converting my Ampeg B15R cab (to eliminate the stock crossover/tweeter). Pics below... The two input jacks are wired in parallel - as they should be. [Although since this amp lives at my studio, I'll probably never need to hook up an extension cab - but who...
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    [Ampeg B15R] Following Jess Oliver's advice...

    Ah, daisy chaining... of course. Any tips on where to find sealed 1/4" jacks? Couldn't find 'em on allparts. Also.. noticed that the Fliptops sealed extension cab's Web product page recommends an Eminence Delta (while their recommendation for a stock baffled B15 replacement is the Eminence...
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    [Ampeg B15R] Following Jess Oliver's advice...

    Also wanted to mention - this thread is turning into quite the B15R info dump. Someone should start a Wiki page for this amp! (Seriously... all these tips/tricks are hard to come by.)
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    [Ampeg B15R] Following Jess Oliver's advice...

    I've actually got no idea. I'm sure someone with more knowledge of cabinet physics would say theoretically, yes (interferes with the sealed cab or whatever). But these cabs are leak city around the top anyway (where the famous Ampeg "weather stripping" is). I'm guessing it's probably no big...
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    [Ampeg B15R] Following Jess Oliver's advice...

    Actually, you're right... you really don't need to take that plate off! Hey it's almost 2am here. :) Although you could solder a small piece of sheet metal to cover that attenuator hole for a cleaner look. (Or leave the whole back plate off and just dangle a wire out the back of the cab...
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    Decent, affordable OLDER short-scale?

    Yep, Univox, Greco, etc... I would take any of those Jimmy, for the right price, and spend time to fix 'em up. I guess I like them weird and short! What's that famous groupie's line from the '60s about the young Rolling Stones - they're so ugly they're good looking. :)!
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    [Ampeg B15R] Following Jess Oliver's advice...

    Well, this thread has inspired me tonight to take a big screwdriver to the back of my cab:cool: Stu's right, it was easy to remove the crossover unit... there are a few more steps needed to get the unit out though. On my 15R cab, there are three small black phillips-head screws located on...
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    [Ampeg B15R] Following Jess Oliver's advice...

    So how do you remove the crossover from the circuit on these cabs? I just unplugged the two leads from the crossover's wire connectors when I disconnected my crossover... is there more to it than that?
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    Decent, affordable OLDER short-scale?

    Thanks everyone for the replies... it's sounding like I'd enjoy either a Mustang, a Musicmaster (with possibly a swapped pickup), or a Bullet. (Which is funny, as my very first electric 6-string guitar was a brand new Fender Bullet USA model in 1982. It was advertised as a budget/student...
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    [Ampeg B15R] Following Jess Oliver's advice...

    Stu, just took a look at my speaker and can't find any identifying marks at all, aside from what looks like a serial number on the paper cone. So I don't know. Actually, the lack of brand name or any identifying marks is making me wonder if I have some sort of after-market speaker in mine (I...
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    [Ampeg B15R] Following Jess Oliver's advice...

    Well, at the risk of further muddying the waters... :cool: Delving deeper into this fascinating topic (via the expansive & helpful Talkbass archives), I found this thread: http://www.talkbass.com/forum/f15/ampeg-b15r-flip-top-105685/index2.html ...where Talkbass user Lucena1 reports...