The cardioid e 906 instrument microphone was especially designed for guitar amps and is also excellent for percussion and horns.

Dimensions: 2.2 x 1.3 x 5.3 in. (55 x 34 x 134 mm)
Frequency response: 40 - 18,000 Hz
Min. terminating impedance: 1000 ?
Nominal impedance: 350 ?
Pick-up pattern: Supercardioid
Sensitivity in free field, no load (1kHz): 2.2 mV/Pa
Weight: 4.9 oz. (140 g)