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The Acoustic Club

I can't think of why I would need another switch to go into standby mode. That's mute, right? I have volume on my ME50B that works just fine. As for the notch, either on or off is fine. Once I dial in my tone, I'm done messing with the amp. Oh well. Don't know what I was expecting. Just wondered because there's no info. Anybody seen the stuff from EHX's efectology series? That guy is always plugging weird stuff into various jacks. Wonder what a trem pedal would do...?
 
The reason to use the Standby is if you need to pull the jack on one bass and insert it into another without the big pop.

You can also use the TUNER OUT behind the head with the tuner on a dead-ended jack and just hit the STANDBY and have the tuner work and the amp go silent. This way the tuner isn't in the sound lineup and cannot cause any noise too.

The Notch Filter is switchable too - although it is hard to understand if you try to use just any-type of dual switch and the TRS jack.

If you try just any dual-stomp, you will not get the NOTCH to go ON or OFF should you want to control it too remotely.

This is the switch I used - but it needs to be modified to make it work:::

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Some pixs first:::

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Remove all the wires except for the ones you see here.

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You have to make up what you see as that RED jumper between the two switches though.

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That's really all there is to it - there are a lot of little jumper wires in the housing when you first open and look at it - and they have to be removed and just rewire the three that you DO have to use as I have them here.

The other lugs are either for indicator lights which you CANNOT use or they are isolated and you need to have a common source to both switches and just one return leg back to the amp.

Any other combo won't allow you to use the Notch Filter, but the Standby will work.

And NO indicator lights will work with the Acoustic system at all!

100_6318.png
 
SurferJoe49...I DO have a question / favor to ask of you....

The acoustic amp website is always a bit thin on specs from item to item, plus I've found enough discrepancies that I don't trust them to be 100% accurate, so, can you check your equip?.....

I need to know what jacks and how many of each type are on the back of your B600H head vs. your B450 combo? I think they are the same amp, just one put into a 2x10 cab?

Also, what are the dimensions (approx) of the B600H and the B450.... not so much the height, but the width and depth?

And finally, does the B450 come with the sockets ready to receive the Ernie Ball casters? Any idea if the B210 Neo has the sockets?

I'm considering getting a used B600H head + used B210 Neo cab, but want to know if the head will fit well (perfectly) on top. I've seen pics that seem to show that they are identical dimensions (W x D) , but the website lists them as a bit different.

If you'd rather PM me, that's fine.;)
 
SurferJoe49...I DO have a question / favor to ask of you....

The acoustic amp website is always a bit thin on specs from item to item, plus I've found enough discrepancies that I don't trust them to be 100% accurate, so, can you check your equip?.....

I need to know what jacks and how many of each type are on the back of your B600H head vs. your B450 combo? I think they are the same amp, just one put into a 2x10 cab?

Well, Acoustic put it into a 210+Horn cab if that's what you mean. The B-600H is inside a slot that is not unlike a single rack space, and if you want it can come out the back after releasing the four top screws that go in through the top of the cab itself.

The back of the B-600H and the B-450 cab are pretty close to the same::

Two speaker OUT 1/4" connex (B600H has a Speak-On output also)

EFX LOOP Send & Return; unbalanced 1/4" dual mono jacks to insert between the pre- and before the post-amp.
NOTE: Has a WET/DRY pot for adjustment​

Direct OUT XLR w/Vol control line level for PA or recording device; w/Vol to control potential clipping; also with a switch to select Pre or Post EQ.

Ground lift Switch

Tuner Send

Footswitch; Stereo-type, TRS 1/4" jack

The B-600H also has an externally serviceable fuse

102VAC female power inlet w/removable cord


Also, what are the dimensions (approx) of the B600H and the B450.... not so much the height, but the width and depth?

The B-450 cab?
If so, it is 15" deep and 19 7/8" wide.

The amp inside the top of the cab is:
18 3/16" wide and it is 12 1/2" deep

Acoustic doesn't agree with these dimensions, but they are prolly talking OVERALL dimensions of the cab and the case including the Tolex, wood and corner guards in which it is mounted.

The B-600H is exactly the same size, but the rear of the chassis for it is a little different design to accommodate the slight placement changes to the external jacks, not needing a punch-out on the underside to allow the B-450 cab wires to the drivers inside the cabinet.


And finally, does the B450 come with the sockets ready to receive the Ernie Ball casters? Any idea if the B210 Neo has the sockets?

I believe ALL the larger cabs by Acoustic are equipped with the same sockets, but they don't need EB casters. I bought some Shepherd furniture casters at Lowe's with dual wheels and they are very satisfactory so far.

The pins on the Acoustics all accept the .430" pins on the casters too. I haven't had any differences in all of my gear as to what might be different in other Acoustic gear, and I know someone here had a big problem with trying to find the right ones - shaft-diameter-wise, anyway.

My B-450 and all of my B410s and the B-115 are so equipped, although I don't run casters on my B-410.


I'm considering getting a used B600H head + used B210 Neo cab, but want to know if the head will fit well (perfectly) on top. I've seen pics that seem to show that they are identical dimensions (W x D) , but the website lists them as a bit different.

The Neo cabs are designed to dimensionally accept the B-200H and the B-600H heads and they look just right.

On top of the non-Neos, the amp heads are a little narrower and they still look good, just not the same width.

FWIW: The B-450 is the same external dimensions and will look good on and of the Neos too.


If you'd rather PM me, that's fine.;)[/QUOTE]

I can keep this on the front end of TB for other's to read if they need the same info.

Sorry I was a little late getting this answered, as I am moving all my gear around this AM to get one of my B-410s back into my room.

I also proof-read this a few times to make sure I didn't make any mistakes, but if something sounds wrong, let me know.
 
Thanks!.... That was exactly what I was needing... and very thorough, too! No prob on the "delayed response" as I'm just now getting to check this--long day at work!:mad:

Now it's my turn for a long-ish post:hmm:

I'm trying to maximize my wattage while minimizing bulk (1 combo or 1 cab only)... and at the same time trying to allow for future expandability. My current rig (B200 combo) meets the first 2 criteria, but not the third due to serial speaker out jacks on the back of the amp (as opposed to parallel).

I was thinking of a B600H head + B210Neo (or B115Neo--both are rated 400 watts and 8 ohms), but if I'm doing the simplified version of the math correctly, the wattage output of that head with a single cab is only 150 watts:

Output watts = Amp watts x (Amp rated ohms / Speaker ohms)

Output watts = 600 x (2/8)

Output watts = 150


That is less than my current B200 combo!

So now I'm thinking I'll just get the B450 combo (450 watts @ 4 ohms), but not sure how the 2x10's compare in sound to my current 1x15. I've read various posts discussing projection beam differences, tone, volume displacement, and wave form cancellation, etc. and with my science background I get all that...

...but my question is: Due to the offset arrangement of the 2x10's in the B450, do you feel there is less loss of the mids? I love my mids and wonder how the 2x10 compares to a 1x15 in your opinion? (i.e. less low end? less mids? something else?)

I understand this is very subjective, but if you could only have 1 driver set up (1x15 or 2x10), which would you want?

Thanks for your input (and patience)!

Seeing as it is now 2:45 a.m.:crying:, I think I'll take this answer "off the air" and go get some sleep.
 
See you tomorrow - but it's midnight here so I'll try to be brief for my own sake too.

If I had my druthers - the 210 in the B-450 wins over a single 15".

I get some righteous tone and great voicing outta them alone in the B-450 and of course, it also has a Piezzo horn - although I find it a little shrill to my ears.

I also ran the B-115 under the B-450 for quite a while as it's a somewhat portable group (hah!) - as much as two cabs over 70-something pounds each can be.

When I push the 115, it has troubles complying with the demands, so I just went out and got my B-410 back from the 'gig-spot' where I have my B-810 yet and the B-600H.

Here's the combo I really like though for when I needed a powerful setup where sound gets eaten by drapes, lots of chairs, furniture, alcoves, ponds, barns, horses or cows:

B-450 on top of the B-410 for 6-10" and 2 Horns

Anyway - if you get to play an occasional BBQ in a 40-acre pasture, there's nothing like lots of 10-inch drivers pounding the air - and at those volumes a 15-incher won't be able to comply as well.

Notice I said: 'as well' - since some people insist they can somehow fill a stadium with a single 15" and 60 Watts; maybe with a three piece kazoo band and a pair of bongos.

Tain't so. But I love my B-450 and the B-115 for those quieter jazz combo gigs where the blue hairs don't want their lingerie flapping. I know it's serious overkill for Wattage, but I like to have the reserves just in case they need an additional little thrill.


The B-450 on top of a B-410 should give you around 375Watts.

If you add another b-410, you should be in the neighborhood of 575Watts at 2.67Ω.

I have run the B-450 (210s) and the B-410 (410s) and the B-810 (810s) for a total of 14-10" drivers and 575 or so Watts at 2.67Ω and not strained the head at all.

That's because the B-450 is rated at 2Ω, whereas the B-600H is rated for 4Ω min.
 
What do you guys think about the acoustic B20? I saw the deal on M123 for $119 and it looks like an ok deal. This would be for keeping an amp upstairs just to practice with...not sure it would hold the low B on my Modulus...but I have a Fender coming in the next several weeks so I would probably use it for the Fender anyway.

Also, keep your eyes on the lookout for a used B600h...I was going to try the B200 but figured I might as well just hold out if the B600 is way better. Thoughts?
 
What do you guys think about the acoustic B20?
First off, a disclaimer; I don't own a five-string and so can't speak to that part. That said...I've had a B20 in my bedroom for over two years now and have no plans on replacing it any time soon. IMO, about the only thing it lacks is the punch of a higher-wattage amp (probably a "...duh!..." statement). I had considered replacing it with an Ampeg BA112 but realized that I was getting the same tone from the amp I already have.

You really should go test-drive one before buying anything.
 
What do you guys think about the acoustic B20? I saw the deal on M123 for $119 and it looks like an ok deal. This would be for keeping an amp upstairs just to practice with...not sure it would hold the low B on my Modulus...but I have a Fender coming in the next several weeks so I would probably use it for the Fender anyway.

Also, keep your eyes on the lookout for a used B600h...I was going to try the B200 but figured I might as well just hold out if the B600 is way better. Thoughts?

Are you talking about HEADS or a CAB?

At this time the only place to get a B-600H is in the B-450; although the B-200H is a head and the B-200 is a combo cab w/amp inside it.

The B-600Hs are not gonna get traded in by an great numbers as they are getting bought and kept so far. They are young yet, and that may change - especially is something 'new' comes from Acoustic.

What snobs think they know about them is wrong.

Acoustic B-600Hs can very well hold their own against pretty much any production 600Watt amps out there.

The drivers are mid-level like many other cab manufacturers.
 
The B-450 on top of a B-410 should give you around 375Watts.

If you add another b-410, you should be in the neighborhood of 575Watts at 2.67Ω.

Hmmmm.... not sure I follow the math on that, but I trust you, o sage of the acoustic!

Care to expand on the long hand math to calculate that? Or are you using your trusty slide rule again!

SurferJoe46 said:
I have run the B-450 (210s) and the B-410 (410s) and the B-810 (810s) for a total of 14-10" drivers and 575 or so Watts at 2.67Ω and not strained the head at all.

That's because the B-450 is rated at 2Ω, whereas the B-600H is rated for 4Ω min.

Actually, acoustic lists the B600H as rated at 2 ohms min.... see it here:
http://acousticamplification.com/products/index.cfm?catid=3&&modid=13&product=B600H

Does that change any ideas you have? Seems you should be able to drive that with just a B600H, too.


No matter, I'll be looking to pick up a B450 as soon as finances allow, then sell my B200 combo to help offset the cost. I hope there are some bassists around Gainesville that like acoustic, 'cause I ain't shipping that thing!