Legacy product
SMX-Line

SE21

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Technical details

Model NameSE 21
TypeCompact monitor and control speaker with EQ, mixer and Bluetooth®
TECHNICAL INFORMATION
ELECTRO-ACOUSTICAL DATA
Frequency range70 Hz – 20 kHz
Sensitivity90 dB
Maximum SPL112 dB
System typeCoaxial
Transducers5.25" driver
AMPLIFICATION
TypeClass-D
Power180 W
Protectionyes
IndicatorsSystem: On, Signal, Limit, Protect
Channel: Clip
ConnectorsInputs:
1× Mic-/Line-Input, XLR / 6.3mm Combo connector, balanced
2× RCA connector, unbalanced
1× 3.5mm TRS connector, stereo, unbalanced
1× Line-Input, XLR Combo connector, balanced
1× Bluetooth®
Outputs:
1× Direct-Out, XLR 3-pin (m), balanced
Power: C14, IEC socket
Operating Voltage100 VAC – 240 VAC, 50 – 60 Hz (Max. 140 W), Fuse: T2AL250V
WiringPin layout XLR: Pin 2: Signal+; Pin 3: Signal-; Pin 1: Shield
Pin layout TRS: Tip: Signal+; Ring: Signal-; Shaft: Shield
Pin layout Stereo-TRS: Tip: Left; Ring: Right; Shaft: Shield
Pin layout RCA: Tip: Signal; Shaft:Shield
Pin layout IEC socket: N: Neutral; L: Conductor; E: Earth, Ground
ConnectivityBluetooth® Version 4.0
Processing3-Band EQ: Bass, Mid, Treble
User controlsPower: On/Off-Switch; Auto-Power: On/Off-Switch
Output-Level: Main Level
Input-Level: Line-Mic; Bluetooth®; MP3/RCA
EQ: Bass; Mid; Treble
MECHANICAL DATA
Product dimensions [H x W x D] (incl. rigging)180 × 323 × 205 mm
Net weight3.5 kg
Hardware3/8" mount

Downloads & resources

User manual EN

PDF · 11.5 MB · Updated: 08/2025

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User manual ZH

PDF · 11.5 MB · Updated: 08/2025

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