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Double Bass ehrlund contact pu-mike

William,
The technician did say that the pickup had an extra ground that had to be connected inside the RCA Jack.

The brown cable can get connected with the shielding. SO you have a) white and b) brown + shielding.

BTW, the Fishman jack is made by Switchcraft.
 
Johnas,
Thanks that clears that up. I've not been able to find the Fishman Jack on the Switchcraft site, so I assume it's a custom made item for Fishman.

Ric
I think only the metal part that attaches to the strings is custom made.
I usually take this part off when I install a Full Circle, I don't like to attach the jack to the strings. Too noisy.
 
Thanks Ric for telling me about this pickup, was chasing for a DPA but after reading this thread I sold my Dyn-B and ordered the Ehrlund today, let's see how it goes...

I admit...
I'm a gear junkie...
I'll get professional help, I promise...


Nahhh....
 
Ah... I haven't visited this thread in a while. I never had any mounting cable issues except for the stupid spring thing that FrontEnd used on the connector. I ripped it off tonight and that ended any potential buzzes. Mine is shortened to 15" and coiled up using a velcro cable strap. I make sure the cable doesn't touch anything and my connector mounting method is very secure. Zero issues.

Played it in a recital tonight and I was pretty happy. Room was largish (Berkeley Jazzschool) and had no problems. The amp was crap and during sound check I went through the "is the amp on?" confusion again because it was so transparent. Every time that happens I realize I'm actually bathing in the bass' sound. Yeah and that's with a SWR amp. Low end was kinda lacking but that was due to the position of the amp placed way off the ground. Had to push it against the wall to get a little bit of coupling. Overall very happy and not turning back. Can't think of another pup that offers the same level of transparency and reproduction.

And oh yeah... the Ehrlund is mounted near the bass f-hole. I just made one medium sized gob of tacky gum and push it firm against the table. Not enough that it's oozing out the sides tho. I get the best sound that way.
 
Thanks Ric for telling me about this pickup, was chasing for a DPA but after reading this thread I sold my Dyn-B and ordered the Ehrlund today, let's see how it goes...

I admit...
I'm a gear junkie...
I'll get professional help, I promise...


Nahhh....

Jmmcc,
It's a nice pickup. Here's a few pointers.

1. Make sure that the cable dosen't contact with any of your instruments vibrating surfaces.

2. IMHO the 1/4" jack that comes with the pickup isn't suited to the bass since it has a spring that will vibrate the cable and
cause it to distort.

3. Use a pair of headphones and a practice amp to locate the sweet spot for the pickup.

4. Only shorten the cable after you have found the ideal spot for placing the pickup.

Ric
 
Hey guys
This pickup sounds intriguing. One question for users. I hear that it gets a high level before feedback (better than mikes-more like a piezo). I often play on small stages where we're playing loud and I'm near a drummer. I worry that since it's amplifying vibrations in the air (like a mic)rather than a physical transfer of vibrations (like a piezo) doesn't it pick up tons of drums? I'm wondering if this pickup is better for low stage volumes or large concert halls where other sound sources are further away? Even with a piezo, if you listen to an unaccompanied drum solo you can hear a lot coming through the amp. If this pickup picks up more drums than, say, a piezo, it would be not so useful in contexts where there is a small stage and higher volume.
 
@ everyone else - It sounded and worked great last night. I still need to find the perfect mounting solutions, but I enjoyed it and would like for it to work out. I also had a friend sit in, so I got to listen from the bar and it sounded perfect out there.

@ Mike - no feedback issues for me. I've played both of the scenarios you mentioned with it in the last week and it works great for both. I've never noticed bleed in my amp, but I've never noticed it with a piezo either, so you're ears may be better than mine. Someone else might know better.

The only think I'll say is compared to something like a Full Circle - The sound is more natural (or can be when it's positioned just so), but not all that much and it's a lot more trouble. My move away from the Full Circle was largely about wanting something I could take off when it wasn't in use. I don't know that for working in clubs, it's enough better to be worth the trouble if being able to uninstall isn't important to you. Just my $.02, others may disagree.
 
@Troika: disagree. :) IMO, the sound is quite different than an FC on my bass. The is more even and natural.

@Mike: It really does take in vibration from the bass and not in the air. Proof? Press the pickup against the bass with your hand and it picks up lots more volume. If it's loosely coupled with the top, you won't hear anything. Simply touching it and tapping it is very very loud and crackles easily (thus why anything rattling on your bass will sound like distortion).
 
@Troika: disagree. :) IMO, the sound is quite different than an FC on my bass. The is more even and natural.

@Mike: It really does take in vibration from the bass and not in the air. Proof? Press the pickup against the bass with your hand and it picks up lots more volume. If it's loosely coupled with the top, you won't hear anything. Simply touching it and tapping it is very very loud and crackles easily (thus why anything rattling on your bass will sound like distortion).

+1 IMHO it has the tonal characteristics of a microphone coupled with the isolation of a peizo. It's gain is very linear, so as you increase the volume it comes up gradually, but the tone quality stays the same.

Ric
 
Let me clarify, I'm not saying it sounds like the Full Circle. Certainly not in a quiet, controlled room.

On stage, in a bar, with a band, factoring the psyco-acoustic factor of "what sounds natural under perfect conditions sounds indistinct on the gig and what sounds strident in perfect conditions sounds more natural in the mix", they are both good sounds. I think that when things are going well with it, the Ehrlund is better. But so far, not enough better to be worth the issues that Fishman worked out in advance of shipping their product.

I'm home from my 2nd good night in a row with this pickup, so I think it's going to work out for me, but I'm just saying. No one I play with or for has said "wow, you sound so much better than before. Did you get a new pickup?" The differences in the real world as subtle from some of the other (quality) pickups, like the Full Circle.
 
I worry that since it's amplifying vibrations in the air (like a mic) rather than a physical transfer of vibrations (like a piezo) doesn't it pick up tons of drums?
Is it?

From their website: "The pickup’s function is to pick up the vibrations from the acoustic instrument." i.e. like a piezo, right? :confused:
@Mike: It really does take in vibration from the bass and not in the air. Proof? Press the pickup against the bass with your hand and it picks up lots more volume. If it's loosely coupled with the top, you won't hear anything. Simply touching it and tapping it is very very loud and crackles easily (thus why anything rattling on your bass will sound like distortion).
OK. Understood. Thanks.

But in the same paragraph: "Ehrlund Acoustic Pickup (EAP) is a linear microphone ..." Microphone? Like Mike said ...

Some time ago I auditioned the Schertler DYN-B. Sounded like the perfect p/u ( / mic). But I encountered issues very similar to what Mike alluded too, and I sent it back.

Certainly does pique my interest, like Mike said. Thanks for sharing guys.
 
Hello Everyone,
Well It Looks Like Using The Full Circle Jack Isn't A Good Solution After All.

Bob Grow Posted This Today In Another Thread.


"The jack for the Fishman Full Circle actually has a passive filter network inside of it and is intended specifically for the FC. Using it with another pickup probably would have unpredictable results. Although it's not listed on fishmanparts.com, perhaps you could get the jack assembly for the BP-100 from Fishman. It's just a simple jack, and doesn't contain a filter network."

So I substituted and addaptor in place of the Full Circle Jack and it dose change the tone by reducing high frequency and volume response of the Ehrlund.

Ric
 
Yeah, I'm just trying to find the best solution for clubs. I've got the concert and recording sound thing down, but small clubs with a slammin' band---really difficult. Musically, the small club low bread stuff is really the most satisfying for me, but the volume level can make amplifying a challenge. I was playing with a great group last night with an awesome young drummer and the volume crept up, but it was appropriate for the context. As you guys know, with amplifying the DB, the louder you get, the less impact you get. Feedback is not an issue with the FC. I'm pretty sure that what is happening is that the bass really becomes a large microphone that creates a loop. As volume increases, the amp sound excites the bass and is picked up by the piezo and then creates a phase conflict. Which is why you'll be playing at a lower volume and the walking feel is really thumpin' and then as you start playing more intense stuff at an appropriate higher volume and you just can't seem to get the rhythmic pulse happening. So without thinking you just keep playing harder and your hands are killing you at the end of the night. Put your ear near a speaker during a loud anaccompanied drum solo and trust me, even with a FC you'll hear it at a surprising volume through your amp. At least with piezos you have more isolation than a mic which is why they were invented. You're not getting it through the air, but through your bass. Which is my concern with the Ehrlund. As someone stated, as you press the pickup down and lessen the air gap it will likely sound more like a piezo. Because the ratio of sound through the air and vibrations transmitted through the pickup has changed. Which is my worry about picking up drums too much. I guess it's a conundrum without a viable solution. Even if you use a magnetic pickup you're still sending vibrations back through the instrument. I know a lot of guys will say "then play with a drummer who plays softer". But the reality whether we like it or not is that since Elvin Jones and Tony Williams the dynamic level for jazz has changed. But the music that has been produced as a result is still something that we aspire toward. If it was 1963 and I had the chance to play with Trane as opposed to say, a Barry Harris trio (which still would be wonderful music) I'd want to play with Elvin. Even though it might be frustrating. I'm too young to have heard Trane live, but I know that you couldn't hear Jimmy Garrison at all in a club. Even if Jimmy had used a FC and the sound of a piezo is a compromise, at least I would have been able to hear him. Alright, I'm done.