Specifications; General Specifications; Amp.unit; Dimensions - Yamaha MS400 Manual Del Usuario

Specifications
General specifications
Type
Bi-Amp 2-way bass reflex powered speaker
(Bi-amplifier electronic crossover network))
Speaker unit
LF : 38 cm cone
HF : 5 cm Titanium diaphragm compression driver
Frequency Range .................. 50 Hz~16 kHz (–10 dB)
Maximum Output Level.......... 124.5 dB (1m on Axis)
Directional angle.................... 90˚ (H)/40˚ (V)
Dimension (W x H x D) .......... 449 x 683 x 379 mm
Weight ................................... 24.2 kg
Color ...................................... Black (approx. Munsell value:
Tripod pole diameter .............. 35~36 mm
Accessories.............................. Power cord (AC inlet type, 2.5 m)

Amp.unit

Maximum Output Power
LF: 300 W at 500 Hz, THD=1%, RL=4 Ω
HF:100 W at 5 kHz, THD=1%, RL=16 Ω
Crossover frequency ............. 1.6 kHz (30 dB/oct.)
Input Sensitivity ..................... LINE: +4 dB*, MIC: –50 dB*
Input impedance .................... LINE: 30 k Ω , MIC: 5 k Ω

Dimensions

Remove the cover when you
M8
use optional brackets
241
449

Block Diagram

Mic Input
Line Input/Output
Phone Jack
5PB 2/1)
379
Unit: mm
Master
Mic
HPF
Line
Controls
LEVEL ............... LINE, MIC, MASTER
EQ........................LOW: 0 (Max.) ~ –10 dB (Min.) at 55 Hz
Power switch.......................... On/Off
Connectors (all balanced):
LINE in/out........................XLR-3-31, XLR-3-32, phone
MIC in............................ XLR-3-31
POWER indicator................... Green LED
Power Requirement
Power Consumption .............. 120 W
Accessories ...................................Bracket adapter BAD251 (for
* 0 dB=0.775 V
• Specifications and appearance are subject to change without
notice.
For European Model
Purchaser/User Information specified in EN55103-1 and
EN55103-2.
Inrush Current: 25A
Conformed Environment: E1, E2, E3 and E4

Performance graph

Standard Frequency Response
+10
0
0
–5
–10
–10
–20
–30
–40
20
LOW CUT LPF
LOW
EQ
Freq. response
compensation HPF
HIGH
EQ
HIGH: ±3 dB (HF)
(They are all connected in parallel
and can be used as line outputs.)
USA and Canada .......120 V, 60 Hz
Europe........................230 V, 50 Hz
Others ........................240 V, 50 Hz
BWS251-400, BCS251, and BBS251)
100 1k
FREQUENCY (Hz)
P.AMP
LF
SPEAKER
P.AMP
HF
SPEAKER
+3
0
-3
10k
5