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Double Bass AMT S25 Bass Mic

#61
As I've said many times. I've never used other small bass-mounted mics like the K&K but from everything I've read of other people's experiences with it and others and the AMT too, I feel that what you're really paying for with the AMT is something that is very usable. The most natural sounding mic in the world is useless if you can't use it much because it feedbacks too easily.

Congratulations on your 1000th post Adrian!
 
#62
T-BONE said:
So you're using the AMT preamp too, or not? Regular or super? So let me see if I have this. AMT mic > AMT preamp > Raven PMB (where it's blended with the Full Circle) > TubePre > EQ3B > Pub. Well, one thing can be said, you sure bring a lot to the gig! :D
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Give that man a biscuit for paying attention! You basically have it right, but cut the TubePre out of the chain. The AMT pre and PMB are mounted on my stool, and travel to the and from the gig that way. The output of the pmb goes thru the EQ and into the PUB. I'd be thrilled if I could eliminate the need for the AMT pre, but right now the rig sounds so good I'll just keep it this way for a while. BTW, the whole rig (stool included fits on a folding dolly, so I can still one-trip it into the gig as long as there are no stairs involved. :hyper:
 
#63
Chris Fitzgerald said:
Give that man a biscuit for paying attention! You basically have it right, but cut the TubePre out of the chain. The AMT pre and PMB are mounted on my stool, and travel to the and from the gig that way. The output of the pmb goes thru the EQ and into the PUB. I'd be thrilled if I could eliminate the need for the AMT pre, but right now the rig sounds so good I'll just keep it this way for a while. BTW, the whole rig (stool included fits on a folding dolly, so I can still one-trip it into the gig as long as there are no stairs involved. :hyper:
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And the Schertler Dyn-B you tried? How did you like that transducer?

Just curious,

Vincent
 
#65
CON: If you're a total klutz like old DURRL, the skinny little cord attached to the AMT might not last long. I stepped on the cable while getting up onto my stool, and apparently disconnected one or more of the little wires that go into the tiny little XLR plug at the preamp. I've got a pretty high profile gig on Friday that I'd like to use the mic on (my bass sounds 10 times better with the mic), so I'm going to see if I can get the plug fixed here in town. I'll probably call the AMT guys for advice on what to do before doing that. Crud...
 
#66
Welcome, welcome to the world of the AMT mic. On mine the wire is going to give out any day now where it comes off the body-clamp for just the same reason. You do get the hang of it after a while, but there are still those nights/stages where you step on your own chord every time....
 
#67
Dittos. Mine went back to AMT a month after I got it. Marty Paglione, Mr. AMT tech guy, was so bugged by this that he cut the wire (still intact) along its length in one inch increments until he reached the bad part. Now that's dedication! It works fine now, but I treat it with kid gloves. I love the thing.

Adrian Cho mentioned Marty "talking your ear off", and that's true. But in this case, it's good talk, very helpful. I think he's justifiably proud of the mic he invented. He is one of the good guys in the biz, along the lines of ALLHAILBOBG. I wish all tech guys were as responsive as Marty.
 
#68
One of the good things about the tailpiece upgrade is that there is no permanent wire but instead you have a cable with a mini-XLR on it and each time you plug that into the mic and the preamp and you can get spare cables. The cable seems reasonably robust to me. I have stepped on it before many times before but unless I was wearing spiked shoes, I wouldn't expect it to do any damage (then again I only weigh 120 lbs and I tread lightly). However your experience makes me think I should order a spare cable especially for critical situations.
 
#69
Adrian Cho said:
One of the good things about the tailpiece upgrade is that there is no permanent wire but instead you have a cable with a mini-XLR on it and each time you plug that into the mic and the preamp and you can get spare cables. The cable seems reasonably robust to me. I have stepped on it before many times before but unless I was wearing spiked shoes, I wouldn't expect it to do any damage (then again I only weigh 120 lbs and I tread lightly). However your experience makes me think I should order a spare cable especially for critical situations.
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Glad to hear from SPARTACUS and RAY RAY that I'm not the only klutz in town when it comes to that skinny little cable. I'm pretty sure that I pulled some wires loose at the little mini-XLR thingie at the preamp. If I get a hold of Marty and he's cool with the idea, I may just have an extra XLR connection installed in my cable so I can carry an extra cable or two. That mic is too good to do without.
 
#70
I bought a used AMT 25B, no paperwork included. Initially I plugged the cord from the preamp into my Bass amp (500 watts, 4 ohms) and couldn't get any gain. Oh s..., buyers remorse. Then I plugged a mike cord with a low to hi Z transformer, that ends with a 1/4 inch plug at the bass amp end. Sounds great now. So, is this the typical solution when using a bass amp and not a Low Z mixing board? Thanks, Kip
 
#73
kip said:
I plugged the cord from the preamp into my Bass amp and couldn't get any gain. Then I plugged a mike cord with a low to hi Z transformer, that ends with a 1/4 inch plug at the bass amp end. Sounds great now. So, is this the typical solution when using a bass amp and not a Low Z mixing board?
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Yeah, man. Plugging a 600-ohm mic output into the 1/4" jack which is looking for 12,000 ohms or 1,000,000 ohms -- that dog won't hunt.

Anyway, problem solved. Good going!
 
#78
Just to report in: Talked to Marty from AMT this week, and as promised he was very helpful and talked my ear off. Nice guy. At first, he told me to send it in, but when I told him I needed it by Friday (tonight, in fact) and just wanted advice on how to go about fixing it, he told me more than I could understand. Anyway, to make a long story short, I took the mic to Gary Falk at Falk Audio, and he pretty much completely redesigned both the cable and the preamp so as to make them (per my request) "DURRLPROOF". Now there are heavy-duty Neutric connections on the mic cable, on the mic side of the preamp, and a heavy-duty 4-pin mic cable as a "DURRL Buffer" between the two. If I manage to break it now, then I'm an even bigger clumsy doofus than I thought. :D
 
#79
greitzer said:
so KIP, if I understand correctly, you're not using the preamp any more? You're plugging the AMT mike directly into a low-to-high Z transformer, and the Z directly into the amp?
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Yes I use the standard preamp, which is low Z out only, and I also use a transformer. Ancient History 101: when Shure started marketing mics like the SM 57 and SM58, which are low impedance mics, one of the only "PA" systems available was the Shure Vocalmaster, and the earlier models had hi impedance mic inputs. So they offered a little barrel shaped transformer with an XLR input and a 1/4 inch output (hi Z) to the amp. I still have some and that's what I put in line to boost the signal.
 

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