GHS A137

It is a cardioid microphone type, with a sensitivity of -47 dB, noise 80 dB and a bandwidth of 100 to 15,000 Hz signal ratio is low impedance (10,000 ohms).

OVERALL OPINION

Recently acquired, I installed an acoustic mandolin replacement of LR Baggs, which transmits with too much zeal resonances fingers on the fretboard ... I've seen spent a lot of microphones: the piezo with all faults we know them, the DPA certainly good but terribly expensive and, I must admit that I am amazed. The reproduced sound is completely neutral with remarkable fidelity and power output remains within normal limits. Contrary to my fears, the feedback is difficult to lead, which is a sign of quality for this type of microphone. The flaw can be seen on the packaging: the battery is removed from the rosette but as it is fixed with two cable ties, it is childish to cut and there is enough wire to place it in a more accessible area especially as the body of a mandolin. is not that of a guitar! In the latter case, a small hack with a soldering iron will be needed to move the battery to the desired location. To further reduce the risk of feedback on stage, I recommend placing a carved rosette on the soundhole to reduce the impact of external sound frequencies that could disrupt the capsule.

Micro "gooseneck" to be installed in an acoustic guitar. Just make a hole at the location of the strap button in the ass guitar. Operation a cinch
Condenser technology.

OVERALL OPINION

Used for about 6 months.
The sound is perfectly respected across the spectrum, I was even surprised at the price ($ 68 on a U.S. site).
I bought it blind (so to speak) for "electronic acoustiquer" my classical guitar, the only sorting criterion is for me one price and then I'm not disappointed!
Of course, if I had to do the same operation on another acoustic guitar, I would take the same microphone ... but I have no other guitar outfit, apart from a Martin 000-18 that is already .