Line Audio Design
Line Audio CM4
Small cardioid (slightly wide) condenser with a permanently biased capsule, XLR-plug sized
Power Phantom, 12 - 48 V (P48 recommended).
- Type
- Condenser (electret)
- Pattern
- Cardioid
- Sensitivity
- −42 dBV/Pa
- Among 204 condensers: more output than 25%
- Among 311 mics: more output than 47%
- Self-noise
- 16 dB(A)
- Among 258 condensers: quieter than 45%
- Among 272 mics: quieter than 46%
- Max SPL
- 135 dB SPL
- Among 277 condensers: takes louder sound than 40%
- Among 343 mics: takes louder sound than 36%
- Rated range
- 20 – 20k Hz
vs 75 end-address condensers
More output than 12% of 75 end-address condensers.
Each stripe is one end-address condenser with a published sensitivity, and each bar counts them; further right means more output. This mic is in blue.
vs 104 end-address condensers
Quieter than 48% of 104 end-address condensers.
Each stripe is one end-address condenser with a published self-noise, and each bar counts them; further right means quieter. This mic is in blue.
vs 110 end-address condensers
Takes louder sound than 38% of 110 end-address condensers.
Each stripe is one end-address 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 graph, p. 1.
Titled "CM4 Typical frequency response at 0.3m and 1m distance"; "Max allowed deivation from flat, 100-16.000Hz, is +-1dB (measured with MLS noise and 1/12 octave narrow smoothing)". The product page adds "on axis, at 1m, 23C". Room 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 product page | ||
|---|---|---|
| Capsule | Permanently biased capsule made to Line Audio's specification; each capsule measured, selected and modified | p. 1 |
| Sensitivity | −42 dBV/Pa (8 mV/Pa)"Sensitivity: 8mV/PA -42dB". | |
| Self-noise | 16 dB(A)"Noise level: 16dB(A)". | |
| Max SPL | 135 dB SPL0.5% THD, P48; also 140 dB SPL, distortion not stated; also 130 dB SPL, at 24 V; also 120 dB SPL, at 12 V. "Max SPL: 140dB, 135dB@ 0.5% THD (130dB@24V, 120dB @ 12V)". | |
| Signal-to-noise ratio | 78 dBDIN A-weighted; 68 dB CCIR. "S/N ratio (DIN A-weighted/CCIR): 78dB/68dB". | |
| Output impedance | 100 ohmless than ("<100 Ohm"). "Impedance: <100 Ohm". | |
| Rated frequency range | 20 Hz to 20 kHz"20-20000Hz (100-16000Hz+-1dB on axis, at 1m, 23C, MLS noise stimuli, 1/12 oct narrow smoothing)". | |
| Powering | phantom, 12 - 48 V (P48 recommended)"12 - 48V (P48 recommended for best performance)". | |
| Connector | XLR-3 (Neutrik, gold-plated)"Connector: XLR (Neutrik gold plated)". | |
| Dimensions | 77 × 20 mm"Size: 77mm x 20mm": length × diameter. | |
| Finish | Black"Its size and black colour makes it less visible on stage". | |
| Supplied accessories | foam windshield; microphone clip/holder for 3/8" and 5/8" (K&M 85035)"Delivered with foam windsheild and microphone clip/holder (3/8" and 5/8")"; the K&M 85035 clip "is included with all new CM4 and Omni1 microphones". | |
| Flatness | 100-16,000 Hz ± 1 dB on axis, at 1 m, 23 °C (MLS noise, 1/12-octave smoothing) | |
| Retail price | 1350 SEK excl. VAT, with windshield and clip | |
| Optional accessory | CMEA elastic adapter (shock mount) for the K&M 85035 clip, 180 SEK | |
| Made in | Sweden, by Line Audio Design | |
Documents
- CM4 - Cardioid Condenser MicrophoneLine Audio Design product page
- CM4 typical frequency response and polar plotimage on the product page
Copies kept by Mic Archive (manufacturers move and drop their documents). Each is © Line Audio Design, unchanged, with its original address.
Recommended for
By recording guides, engineers and mic makers, for this mic or an earlier version of it.