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acme B2 vs GK 115MB, Question:

K folks, we could maybe not head south with this. We all know the internet is a hard place to communicate when nuance is part of the communication.

Anyway, I'm no Victor Bailey but my technique isn't all that bad. I'm able to isolate a line and play just what I want to play when pressed... I have to agree the problem is that there is really, really no roll-off in the lows here, and I think you guys have sussed out a solution with fDeck's HPF device.

This amp is certainly a meaningful step in the development of the modern amplifier we know today though- the hi-fi approach and super flexi eq, and the presence of those extremely low freqs- and the amp's tendency to remain yet 'un-colored', are all apparently new ideas on the timeline of amp development. And aside from this solvable caveat, it's still a totally fine-sounding, usable amplifier.

I might even see about trading some less-favored gear for an 810 fridge to go with the 400s...
 
While I am not a big SWR fan, I think the "full range" option is a nice and far too rare thing. As I have decent technique (in terms of not creating massive LF peaks while gigging), big cabs that can take a lot of deep bass, I find it extremely annoying to have my signal defaulted through a 35 or 40 Hz HP filter.
And belive me, if you gig a 1500-2000W rig loud, there is a big sonical difference if you drop the fundamentals by 5-8 dB at the B string, which is exactly what these HP filters do.

Sweepable HP filters is the best option IMO, but oh so rare.
 
While I am not a big SWR fan, I think the "full range" option is a nice and far too rare thing. As I have decent technique (in terms of not creating massive LF peaks while gigging), big cabs that can take a lot of deep bass, I find it extremely annoying to have my signal defaulted through a 35 or 40 Hz HP filter.
And belive me, if you gig a 1500-2000W rig loud, there is a big sonical difference if you drop the fundamentals by 5-8 dB at the B string, which is exactly what these HP filters do.

Sweepable HP filters is the best option IMO, but oh so rare.

Interesting perspective, but for me a large stage generally means FOH is in the scene. In that case my having that capability is a potential problem for the sound person.

At a club type gig, the only time I need that kind of thing is a reggae band with limited PA. But even then it's not an issue- the cab is more of an issue that the head, and I don't need killer volume, just killer-deep bass... and 30Hz just ain't part of that.

But maybe that headroom is where it's at, and you carry a cab that suits that lower threshold of hearing frequency range. I just don't.
 
I have done a number of festivals / outdoors gigs, small stage "in the street". PA for vocals, kick and (maybe...) keys. Then a regular 410 + 3-400 W SS amp sounds pretty anemic with a rock band. That kind of gig happens quite alot here in Sweden, as everything involving paying a professional (like a sound technician with his rig) is way more expensive than in many other contries. (The VAT here is 25% also on labor, of the remaining sum, the employer has to pay approx. 30% fee to the state as an employer. The remaining sum can be used for salary, of which the employee pays 30-50% income tax.)

For these occasions with SOS PA, I prefer to bring gear that gets the job done.
 
I would not even try to play a gig with one Acme B2. A pair stacked vertically are, however, sublime. :)

This is true...I use the same. The trick is the vertical stacking. The Acme's are not overly loud so you'll need the 4 drivers and adequate power...300-500 watts per enclosure...for presence. On the plus side, the cabs require minimal, if any, EQ compensation as the response is balanced top-to-bottom...no bumps, no voids. Avoid high pass filtering above 30 hz as this negates the tuning characteristics...it is a ported cabinet.

Riis