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Post subject: Re: V-4B Tuber
Posted: Thu Mar 21, 2019 1:37 am
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I suppose in the designs with the amps and cabs, they probably do have paring each together in mind when they put them out. I'm sure that's how they are tested. There is some science going into cabs, besides just throwing a box together with some speakers. The way the sound and air moves, porting, and all of that. I'm willing to bet that I can take my Fender 4 x 10" and an Ampeg 4 x 10" cab, and they would sound at least a little different, even using the exact same bass, cable and not touching any settings, or even having the same speakers in them.

I know what you mean about magnetics and electronics. You certainly don't want to have a huge magnet next to a computer. I don't know about the one they have in the Rumble amps, although I do know the cups where the feet are supposed to go in the cab are pretty small. You know, a speaker is actually a magnet, too. Obviously, that has no bearing on the amplifier, though.

Speaking of Ampeg cabs, I was looking online yesterday at old and random Ampeg amps, like guitar stuff, and other things they used to have going back into the 90's, and earlier, and they used to have a 4 x 12" bass cab back in the early 2000's. They have the manual for it on the Ampeg site: https://ampeg.com/pdf/SVT412HE.pdf It looks like it was a beast, although, the power rating of it was 400 watts RMS, and 800 peak, but at 4 ohms. I thought that was odd, because in the specs it said it was loaded with 110 watt speakers, so shouldn't that be 440 watts? It also weighed 97 pounds, so you'd have to be eating your Wheaties to be hauling that thing around. :P Still, if you could find one, you could replace the old speakers in it with modern ones that have a higher rating, maybe even lighter to shave off some of the weight. I've never seen one of those cabs in person, though. Come to think about it, I've never seen any 4 x 12" bass cabs in person, that I remember.

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Post subject: Re: Hartke HD75
Posted: Thu Mar 21, 2019 6:06 pm
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The closed cab on a bass cab, may also have something else other than encasing it for sounds, but also to isolate the power of the larger bass amp's speaker magnet from the amp's head. Marshall had a bass 412 cab, or it was converted for bass.

Around 2000, Ampeg had a 412 cab. An SVT412HE. A 4 ohm, 400 Watt / 800 Peak.

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Last edited by Mr. Nylon on Mon Sep 30, 2019 8:53 pm, edited 11 times in total.

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Post subject: Re: V-4B Tuber
Posted: Fri Mar 22, 2019 2:20 am
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Yeah, I thought about that with the encasement with the wood and covering.

I've seen a couple of listings for that Ampeg 4 x 12" cab, but they were sold a long time ago, it seems. Other than the manual file I linked in my last post, I really didn't seem so find much info about it. Maybe it wasn't widely used or popular. You ever have any dealings with it?

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Post subject: Re: Hartke HD75
Posted: Fri Mar 22, 2019 5:26 am
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It probably didn't help that they weighed in at 96-97 pounds either.

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Last edited by Mr. Nylon on Mon Sep 30, 2019 8:53 pm, edited 10 times in total.

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Post subject: Re: V-4B Tuber
Posted: Fri Mar 22, 2019 2:45 pm
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Yeah, I noticed that in the specs. I can't really say if that's really heavy for what it is, or not, since 12"s are bigger than 10"s, and Marshall 4 x 12" guitar cabs aren't exactly lightweight, either.

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Post subject: Re: Hartke HD75
Posted: Fri Mar 22, 2019 7:09 pm
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I don't think Ampeg gave it a second thought about a cabs weight.

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Last edited by Mr. Nylon on Mon Sep 30, 2019 8:54 pm, edited 10 times in total.

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Post subject: Re: V-4B Tuber
Posted: Sat Mar 23, 2019 4:43 am
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I suppose the one advantage of that weight, it's usually very sturdy, and well built, at least I'd like to think so.

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Post subject: Re: Hartke HD75
Posted: Mon Mar 25, 2019 7:23 pm
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PaulLF wrote:
I suppose the one advantage of that weight, it's usually very sturdy, and well built, at least I'd like to think so.


I don't recall ever seeing an Ampeg cab come apart on the road. Beat to hell maybe, but stayed intact.

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Last edited by Mr. Nylon on Mon Sep 30, 2019 8:54 pm, edited 10 times in total.

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Post subject: Re: V-4B Tuber
Posted: Mon Mar 25, 2019 11:39 pm
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That's true. I suppose the only thing that would go first was the speaker grill, because of that fabric, whatever it's made of, and that might tear, or get punctured.

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Post subject: Re: Hartke HD75
Posted: Tue Mar 26, 2019 10:18 am
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PaulLF wrote:
That's true. I suppose the only thing that would go first was the speaker grill, because of that fabric, whatever it's made of, and that might tear, or get punctured.


The Ampeg grill speaker cloth does seems to pretty resilient, too tears, and punctures as you said.

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Last edited by Mr. Nylon on Mon Sep 30, 2019 8:54 pm, edited 10 times in total.

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Post subject: Re: Hartke HD75
Posted: Tue Mar 26, 2019 10:25 am
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The V-4B isn't to bad being being a 100 watt tube head, and using 4 x 6L6GC power tubes, in place of 6 x 6L6GC for the 300 watts tube head. The 100 watt tube head is loud enough for shaking my room damn well, as I've said before. :roll:

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Last edited by Mr. Nylon on Mon Sep 30, 2019 8:54 pm, edited 10 times in total.

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Post subject: Re: V-4B Tuber
Posted: Tue Mar 26, 2019 1:03 pm
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Yeah, I've heard your amp does have some balls to it, even though it's a third of the wattage of the SVT, especially when you have the right cabs to back it up.

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Post subject: Re: Hartke HD75
Posted: Tue Mar 26, 2019 3:40 pm
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PaulLF wrote:
Yeah, I've heard your amp does have some balls to it, even though it's a third of the wattage of the SVT, especially when you have the right cabs to back it up.


I think even as a tube 100 watts, in your case, the 300 tube watts head would be more for what you'd need if you ever contemplated a tube head. That's a bit of problem some players have with the 100 watts head, enough, or not enough for their playing style. With your PF-800, there's not too much wondering about if you have the power needed. A whole lot of power going on with that head.

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Last edited by Mr. Nylon on Mon Sep 30, 2019 8:55 pm, edited 10 times in total.

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Post subject: Re: V-4B Tuber
Posted: Tue Mar 26, 2019 10:15 pm
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Yeah, although I'm only running one 8 ohm cab, giving it 400 watts, even that seems to be sufficient. I suppose for whatever reason I'd need to, I could add another cab to give it the full 800, which I really don't foresee having to do. I never had to crank the Orange head, and I was running that one with full wattage, because it had switchable ohmage, and it was only an extra 200 watts in power.

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Post subject: Re: Hartke HD75
Posted: Wed Mar 27, 2019 7:48 am
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That sounds good to me. 400 Watts is a considerable amount.

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Last edited by Mr. Nylon on Mon Sep 30, 2019 8:55 pm, edited 10 times in total.

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