sE Electronics
X1 S
Large-diaphragm condenser · Cardioid · 20–20,000 Hz
- 30 mV/Pa and 9 dB(A) noise — the step up from the X1 A is mostly quieter electronics and a much higher ceiling.
- Pad and low-cut each have two steps rather than one, so it reaches 160 dB SPL.
Frequency response
No response curve yet.
MicSense only draws a curve redrawn from a graph the manufacturer publishes — it never estimates one from the microphone’s class. No published graph has been redrawn for the X1 S yet, so the numbers are in the spec table below.
Polar pattern
Generated from the first-order directivity formula for cardioid. It illustrates the pattern type — it is not a measurement of this individual model.
Specifications
| Manufacturer | sE Electronics |
|---|---|
| Model | X1 S |
| Type | Large-diaphragm condenser |
| Form factor | Side-address |
| Polar pattern | Cardioid |
| Frequency range | 20–20,000 Hz |
| Sensitivity | 30 mV/Pa · -31.0 dBV/Pa |
| Max SPL | 140 dB SPL (0.5 % THD) |
| Self-noise | 9 dB(A) |
| Impedance | 125 Ω (electrical) |
| Connector | XLR3M |
| Powering | Phantom 48 V |
| Weight | 445 g |
Specifications: sE Electronics specifications page · last checked 2 Oct 2026. These are the maker’s published figures for this model. A dash never means zero: “not published by the maker” means the maker’s documents give no figure; “not yet checked” means MicSense has not confirmed one yet. Spotted an error? Tell us.
MicSense notes
| Price tier | Mid |
|---|---|
| Introduced | — not recorded |
Price tier and “a rider regular” are MicSense’s own judgement, not the maker’s.
What it gets used for
- FOH vocal
- Acoustic instrument
- Overhead
MicSense tags microphones by the job on a live stage, not by studio category — so you can filter for “kick in” or “monitor vocal” instead of working backwards from “large-diaphragm condenser”.
X1 S alternatives: closest in published specs
Based on published specifications only — always listen at soundcheck. These are the microphones in the MicSense library whose datasheet figures sit closest to the sE Electronics X1 S’s for the same live job, with the reasons. It says nothing about how they sound.
Not compared for the sE Electronics X1 S: response curve not redrawn yet.
-
Sennheiser
MK 4
- Same job: FOH vocal, acoustic instrument, overhead
- Same type: condenser (large diaphragm)
- Same cardioid pattern
- Same form: side-address
- About the same output — within the datasheets’ tolerance
- Max SPL as high or higher (140 vs 140 dB SPL)
-
sE Electronics
X1 A
- Same job: FOH vocal, acoustic instrument, overhead
- Same type: condenser (large diaphragm)
- Same cardioid pattern
- Same form: side-address
- ≈ 3 dB less output — add about 3 dB gain
- Check: Max SPL 10 dB lower (130 vs 140 dB SPL) — check it on loud sources
-
Sennheiser
MK 8
- Same job: FOH vocal, acoustic instrument, overhead
- Same type: condenser (large diaphragm)
- Switchable pattern — set it to cardioid
- Same form: side-address
- Max SPL as high or higher (142 vs 140 dB SPL)
- ≈ 6 dB less output — add about 6 dB gain
Compare it against the alternatives.
MicSense lets you put up to four microphones side by side — spec table, overlaid response curves and polar diagrams on one screen. Free with a free Squaresmile account.