Acoustic Amps with phantom power?

[Charlie Bernstein]

Originally Posted by Nymuso

No. Not only that, but I have an older powered mixer that has phantom power - but it is not 48v. Gotta check the specs on everything

Interesting. Thanks!

[Koamon]

The Roland AC 60 or 90 and the Boss Acoustic Guitar Singer and Pro has 48v phantom power

[SpruceTop]

Originally Posted by YamahaGuy

LR Baggs Synapse has phantom power.

+1, and the LR Baggs Synapse sounds wonderful enabling any acoustic guitar to sound its amplified best!

[leew3]

Originally Posted by Rudy4

Here's a quote directly from the Shure website:

"The worldwide standard for phantom power is 11 to 52 volts of DC (typical studio mics run on 48v). Your preamp will typically have a button labelled 48v, which allows you to turn this on/off. However, some older mixers and cheaper audio interfaces may not have phantom power."

In non-critical consumer applications phantom power is often less than 48v and mics and other equipment requiring phantom power generally work fine.

Some of my friends who have Fishman amps use their phantom power, totally oblivious to the lower voltage. I'm not telling them...

Here's what Fishman says about 24v phantom power on their website:

"Why do some Fishman amps feature 24 volt phantom power?
The Loudbox Artist and Loudbox Performer use a 24v high current phantom power supply standard that allows users to operate condenser microphones and other devices requiring phantom power without issue. In many cases, the high current standard provides increased power and stability than 48v sources."

Thanks Rudy4...now I know!

[dnf777]

Originally Posted by leew3

Thanks Rudy4...now I know!

I wonder what the cost is t9 running HALF the recommended 48v? Ive used several LDCs with my Fishman Artist with no appreciable deficits. I wonder if since a condenser diaphram is basically a capacitor, the 24v are quickly stored up to 48v at the mic?

[darkwave]

I tried my Audio Technica SDC (4051, I believe) though my Loudbox 100 for vocals at a rehearsal several years ago and it was disappointing. That's when I found out the phantom power was only 24V. Output was very low, haven't tried it since.

[Rudy4]

Originally Posted by darkwave

I tried my Audio Technica SDC (4051, I believe) though my Loudbox 100 for vocals at a rehearsal several years ago and it was disappointing. That's when I found out the phantom power was only 24V. Output was very low, haven't tried it since.

AT is one of the manufacturers who specify 48 volt phantom power. They state that their mics may not provide acceptable results or may not work at all on lower phantom voltages.

[darkwave]

Originally Posted by Rudy4

AT is one of the manufacturers who specify 48 volt phantom power. They state that their mics may not provide acceptable results or may not work at all on lower phantom voltages.

Well - apparently they're not lying! ;-)

[PineMarten]

Most of the instrument-mounted miniature condensers will run happily on less than 48v - DPA 4099, AKG clip-on mics etc. I'm guessing during the design process somebody decided that type of microphone would be the most likely use case with a backline acoustic amp.