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Specifications, General specifications, Amp.unit – Yamaha MS400 User Manual

Page 5: Dimensions, Performance graph, Block diagram, General specifications amp.unit, Dimensions performance graph block diagram, Dimensions performance graph, Standard frequency response

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5

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:

5PB 2/1)

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

HF:100 W at 5 kHz, THD=1%, RL=16

Crossover frequency ............. 1.6 kHz (30 dB/oct.)
Input Sensitivity ..................... LINE: +4 dB*, MIC: –50 dB*
Input impedance .................... LINE: 30 k

, MIC: 5 k

Controls

LEVEL ............... LINE, MIC, MASTER
EQ........................LOW: 0 (Max.) ~ –10 dB (Min.) at 55 Hz

HIGH: ±3 dB (HF)

Power switch.......................... On/Off
Connectors (all balanced):

LINE in/out........................XLR-3-31, XLR-3-32, phone

(They are all connected in parallel
and can be used as line outputs.)

MIC in............................ XLR-3-31

POWER indicator................... Green LED
Power Requirement

USA and Canada .......120 V, 60 Hz
Europe........................230 V, 50 Hz
Others ........................240 V, 50 Hz

Power Consumption .............. 120 W
Accessories

...................................Bracket adapter BAD251 (for

BWS251-400, BCS251, and BBS251)

* 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

Dimensions

Performance graph

Standard Frequency Response

Block Diagram

Unit: mm

683

379

449

203

241

M8

Remove the cover when you
use optional brackets

10k

1k

100

20

–30

–20

–10

0

+10

–40

FREQUENCY (Hz)

RESPONSE (dB)

+3

-3

0

0

–5

–10

LOW CUT

P.AMP

P.AMP

Mic Input

Line

Mic

Master

LPF

HPF

Freq. response

compensation

LF

HF

SPEAKER

SPEAKER

Line Input/Output

LOW

EQ

HIGH

EQ

Phone Jack

HPF