Shure
Shure Beta 98AMP
Miniature cardioid electret condenser instrument mic on a gooseneck with an integrated XLR preamplifier; sold with the A75M universal mount for drums and percussion
Power Phantom 11-52 V DC (IEC-61938).
- Type
- Condenser (electret)
- Pattern
- Cardioid
- Sensitivity
- −50.5 dBV/Pa
- Among 204 condensers: more output than 6%
- Among 311 mics: more output than 32%
- Self-noise
- 31 dB(A)
- Among 258 condensers: quieter than 3%
- Among 272 mics: quieter than 3%
- Max SPL
- 157.5 dB SPL
- Among 277 condensers: takes louder sound than 99%
- Among 343 mics: takes louder sound than 96%
- Rated range
- 20 – 20k Hz
- Released
- 2010
vs 16 clip-on condensers
More output than 27% of 16 clip-on condensers.
Each stripe is one clip-on condenser with a published sensitivity, and each bar counts them; further right means more output. This mic is in blue.
vs 14 clip-on condensers
Quieter than 23% of 14 clip-on condensers.
Each stripe is one clip-on condenser with a published self-noise, and each bar counts them; further right means quieter. This mic is in blue.
vs 16 clip-on condensers
Takes louder sound than 87% of 16 clip-on condensers.
Each stripe is one clip-on condenser with a published max SPL, and each bar counts them; further right means it takes louder sound. This mic is in blue.
Instruments sources recommend it for most
Proximity effect: the bass it gains up close
From the user guide, p. 5.
Frequency response graph titled "Beta 98AMP"; 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.
Polar pattern
From the user guide, p. 5.
Polar plots under the response graph: two plots (250 to 1000 Hz, 2500 to 10 000 Hz), 0° at the bottom, 5 dB per ring.
In practice
All specs
| From the user guide | ||
|---|---|---|
| Capsule | replaceable cardioid cartridge RPM98A/C"Replacement Parts: Cardioid Cartridge RPM98A/C". Page 3: make sure the cartridge is tightly secured before each use, as drumstick hits may loosen it. | p. 4 |
| Sensitivity | −50.5 dBV/Pa (2.5 mV/Pa)open circuit voltage, 1 kHz, typical. "–50.5 dBV/Pa (2.5 mV)". | |
| Self-noise | 31 dB(A)equivalent SPL, A-weighted, typical. "31.0 dB SPL-A". | |
| Max SPL | 157.5 dB SPL1 kHz, 1% THD, 2500 ohm load; also 153 dB SPL, 1 kHz, 1% THD, 1000 ohm load. "THD of microphone preamplifier when applied input signal level is equivalent to cartridge output at specified SPL". Measured with 48 V phantom. | |
| Signal-to-noise ratio | 63 dBref. 94 dB SPL. "S/N ratio is the difference between 94 dB SPL and equivalent SPL of self noise, A-weighted". | |
| Dynamic range | 126.5 dB1 kHz, 2500 ohm load; also 122 dB, 1 kHz, 1000 ohm load | |
| Output impedance | 150 ohm"Output Impedance 150 Ω". | |
| Rated load impedance | 1000 ohmrecommended minimum; higher gives more headroom. "Shure recommends a minimum input load impedance of 1000 Ω". | |
| Rated frequency range | 20 Hz to 20 kHz | |
| Powering | phantom 11-52 V DC (IEC-61938)"11–52 V DC phantom power (IEC-61938), 5.5 mA"; "performs best with a 48 Vdc supply"; all specs measured at 48 V. | |
| Current draw | 5.5 mA | |
| Connector | XLR, on the integrated preamplifier"an integrated preamplifier with XLR connection". | p. 3 |
| Weight | 130 gnet. "130 g (4.6 oz.)". | p. 4 |
| Dimensions | 182.37 × 20.07 mmDrawing: overall length 182.37 mm (7.18 in), preamplifier body diameter 20.07 mm (0.79 in); the angled head is 32.77 mm (1.29 in) long. Printed with decimal commas ("182, 37 mm"). | p. 5 |
| Supplied accessories | A75M universal microphone mount; A75-57F A75M small mic clip; 95A2314 zippered carrying bag; 95A2064 snap-fit windscreen"Furnished Accessories". | p. 4 |
| Models | Beta 98AMP/C: with the A75M universal mount; Beta 98AMP/C-3PK: three mics and three A75M mounts | p. 3 |
| Mount | Flexible gooseneck; A75M universal microphone mount (drum rims, stands and other hardware), with its own guide | |
| Output clipping level | 12.5 dBV into 2500 ohm, 7.5 dBV into 1000 ohm (1 kHz, 1% THD) | p. 4 |
| Common mode rejection | ≥60 dB, "10 to 100,000 kHz" | |
| Polarity | Positive pressure on the diaphragm gives positive voltage on pin 2 with respect to pin 3 | |
| Construction | Enamel-coated metal, stainless steel inner grille | p. 3 |
| Optional accessories | RK183WS snap-fit windscreens (4); A412MWS metal locking windscreen; A57F mic clip; C25E 7.6 m (25 ft) cable; A75-25D A75M large mic clip; A75-UMA A75M universal microphone adapter; A53M Shock Stopper isolation mount | p. 4 |
| PlacementShure | Toms: 2.5-7.5 cm above the head, or inside with the bottom head removed. Snare: 2.5-7.5 cm above the rim, aimed at the head. Cymbals: close, with the A75M, clear of the cymbal's swing | p. 3 |
| From the Recording Hacks page | ||
| Released | 2010 | |
Documents
- BETA 98AMP Instrument Microphone, user guide27A14268 Rev. 1
- Shure Beta 98AMP | RecordingHacks.com
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.