Yamaha MS300 - Amp.unit; Performance Graph; Block Diagram

6
Specifications
■ General specifications
Type
Bi-Amp 2-way bass reflex powered speaker
(Bi-amplifier electronic crossover network))
Speaker unit
LF : 30 cm cone
HF : 5 cm Titanium diaphragm compression driver
Frequency Range.................. 50 Hz~16 kHz (–10 dB)
Maximum Output Level.......... 121 dB (1m on Axis)
Directional angle.................... 90˚ (H)/40˚ (V)
Dimension (W x H x D).......... 406 x 637 x 348.5 mm
Weight ................................... 23.7 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: 225 W at 500 Hz, THD=1%, RL=4
Ω
HF:85 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
Controls
LEVEL............... MASTER, MIC, LINE
EQ....................... LOW: 0 (Max.) ~ –8 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 .............. 100 W
Option.................................... Bracket 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: 31A
Conformed Environment: E1, E2, E3 and E4
Dimensions Performance graph
Standard Frequency Response
Block Diagram
150
348.5
406
637 184
2-M8 depth17
Unit: mm
Remove the cover when you
use optional brackets
10k1k100
20
FREQUENCY (Hz)
RESPONSE (dB)
–30
–20
–10
0
+10
+3
–3
0
0
–4
–8
–40
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