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Double Bass Dual-channel-preamp?

#21
filco1 said:
The EA doubler looks really nice and can also be used as a preamp too. How is the vent on the back? Does it blow loud?
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It's a mini fan, and it's pretty quiet. In a live situation, it's not a factor at all. I have heard from folks who used a Doubler or Micro in the studio and they mentioned that there was a bit of fan noise in that hyper-critical environment, so they had to put the amp behind a baffle if they had an open mic in the room. But I never notice it for rehearsals or performances.
 
#22
Mark Gollihur said:
It's a mini fan, and it's pretty quiet. In a live situation, it's not a factor at all.
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Yup, that's what's relevant. As I posted earlier in this thread:
drurb said:
...In a live setting, signal-to-noise ratio is a very practical consideration in the sense that many sins are not only forgiven, but are not and often cannot be noticed. On the bandstand, in combination with other instruments and considering room and audience noise, it really doesn't matter if the quiescent output of your pre-amp is 10 dB greater than what would be considered "studio grade." No human is likely to hear the difference even if he/she were focusing on it and, let's face it, no one will be.
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No one in the audience will detect a mini-fan when the music is being played and no one is likely to detect it between tunes either.
 
#24
Can anyone recommend a wiring setting for the EA Doubler? The manual of the doubler says: Power: 550 watts RMS@4 ohms, 550 watts RMS@2 ohms, 350 watts RMS@8 ohms
I have two LF-Drivers (Eminence BP102) and two tweeters (Eminence APT80) I figured out 3 possibilities. Which one would be the best?
 

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#25
filco1 said:
I think i will go for the IAmp doubler. Gary from EA will modify an amp, so that channel two (mic channel) goes to the DI out. So i can send only the mic sound to the FOH. (and i will sell the hypex audio modul, wich is nice but...) the EA doubler looks more attractive for me.
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Why would you need to run the mic through the preamp then? Just send it to FOH directly.
 
#27
filco1 said:
i want both: using the mic-signal for the stage for myself and only give the mic-signal to FOH (not the pick up signal because a lot of live-mixing-guys can not deal with it well enough) so the mic-signal will be always the "master-signal" the pick-up-signal would be only used as emergency-signal
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Filco,
Here's the gear you listed in your earlier post.


Mic: Schoeps MK 41G (it's a really good mic and gives me the real sound of my bass)

Ehrlund pickup with pre (it's the best pickup for me but I use it only if i have to use it)

RNP Preamp (i like this little box, but it's only a preamp with 48V and phase-switch not more)

EA Doubler

Are You Going To Just Use The Doubler with The Schoeps eliminating the Really Nice Pre Amp? Just Curious.

I've never had a problem sending the Ehrlund FOH because it's got such a great sound and it's a linear device.

I just used it last evening at a concert in a hall that has all kinds of acoustical challenges. Worked beautifully.

If I owned that Schoeps. I'd send it FOH, and use the Ehrlund into the amp.

As far as your speaker compliment goes. The EA will go all the way down to 2 ohms. So I believe you are set.


Ric
 
#28
hi Ric, i do not have the doubler now, I just ordered it and i'm hoping it's a nice amp. i want only to carry the stuff I really need, so i'm hoping, that the EA doubler mic-pre will also do a great job for the shoeps. (to keep in mind, it's for live setting, don't need that much high end) My idea is similar to yours. Using the mic-signal for main (always FOH, if there is one) and if I can deal also with the mic-signal on stage that would be great, if not, the mic is only FOH and on the bandstand I'll operating with the pickup. (as you said) With the EA doubler I have all this routing possibilities, so one device for almost everything. And if I don't have to bring my own amp, i can use the Doubler as a preamp/2-Channel-Mixer. (the size and weight will be ok) I really like the RNP, but if i don't really need it, I will leave it at home. (I use it a lot for recording,...)
 
#29
filco1 said:
hi Ric, i do not have the doubler now, I just ordered it and i'm hoping it's a nice amp. i want only to carry the stuff I really need, so i'm hoping, that the EA doubler mic-pre will also do a great job for the shoeps.

........With the EA doubler I have all this routing possibilities, so one device for almost everything. And if I don't have to bring my own amp, i can use the Doubler as a preamp/2-Channel-Mixer. (the size and weight will be ok) I really like the RNP, but if i don't really need it, I will leave it at home. (I use it a lot for recording,...)
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That will certianly make your system easier to transport.
The Doubler is the only amp other than the Acoustic Image that has all the features you require. I hope it works well for you.

Ric
 
#30
Hey Talkbasspeople, long time ago.

I finished for about 99% my "lightweight" bass amplifier system. (2x8" mid-bass driver with 2x1" adjustable horn-driver / two speaker housings) Maybe some of you guys will be interessted or have some upgrading ideas. Amplifier is still the EA Doubler.

My Philosophie: having two smaller speakers to spread the sound and don't have to put the level that loud. (in my opinion better then one heavy, big, loud, bass-cab) One speaker for me and the drummer (left of me) and one speaker maybe for the piano player (right of me) I still played a few gigs and it's working fantastic.

The whole system is about 14kg / 30lb (including amp, cables and suitcase) Maybe you will ask "is that lightweight" in case of flexibility and sound quality it is for me.

(on the second pic, there is a drum stick for imagine the size)
 

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