Shure
Shure 520DX "Green Bullet"
High-impedance omni dynamic harmonica mic with a volume control and an attached cable with a 1/4-inch plug
Power None: a dynamic mic needs no power.
- Type
- Dynamic
- Pattern
- Omni
- Sensitivity
- −38 dBV/Pa
- Among 78 dynamics: more output than 100%
- Among 311 mics: more output than 62%
- Rated range
- 100 – 5k Hz
vs 25 handheld dynamics
More output than 100% of 25 handheld dynamics.
Each stripe is one handheld dynamic with a published sensitivity, and each bar counts them; further right means more output. This mic is in blue.
Instruments sources recommend it for most
Proximity effect: the bass it gains up close
From the user guide, p. 3.
"Typical Frequency Response"; relative dB. Distance, room and smoothing not stated.
Dashed: outside the rated range, or simulated (other angles and distances). Hover or tap the graphs for values.
In practice
All specs
| From the user guide | ||
|---|---|---|
| Sensitivity | −38 dBV/Pa (13 mV/Pa)1 kHz, open circuit voltage. "Open Circuit Voltage –38.0 dBV/Pa (13 mV)". | p. 3 |
| Rated load impedance | 100000 ohmminimum. "Load Impedance Range: Minimum: 100 kΩ". | |
| Rated frequency range | 100 Hz to 5 kHzThe brochure gives "100Hz - 5kHz" too (page 2). | |
| Connector | 1/4-inch phone plug on an attached 6.1 m (20 ft) two-conductor shielded cable"supplied wired for high-impedance, unbalanced connection". | |
| Weight | 737 gwith cable. "737 grams (26 oz)". | |
| Dimensions | 63 × 82.6 mm"63 mm (2.5 in) max diameter, 82.6 mm (3 1/4 in) long". | |
| Finish | green and chrome"Green and chrome finished die casting". | |
| Volume control | Knob at the base of the mic, with an off position | p. 2 |
| Case | Die-cast | p. 3 |
| Polarity | Positive pressure on the diaphragm gives positive voltage on the plug tip | |
| Low-impedance use | Use a low-to-high impedance-matching transformer such as the Shure A95U; the mic can be rewired for low impedance, but that disables the volume control | |
| Replacement parts | R198 cartridge; 95A2353 cable and plug; 90A4487 volume control pot | p. 4 |
| UseShure | Plug straight into a guitar amplifier for the classic blues harp sound; turn the mic volume down before plugging in | p. 2 |
| Impedance | High, unbalanced (no figure given) | p. 3 |
Documents
- 520DX "Green Bullet" Harmonica Microphone, user guide27A13222 Rev. 2
- Classic Collection brochure
Copies kept by Mic Archive (manufacturers move and drop their documents). Each is © Shure, unchanged, with its original address.
Recommended for
By recording guides, engineers and mic makers, for this mic or an earlier version of it.