Beyma 12MCB700 User guide

www.beyma.com

KEY FEATURES

12MCB700

LOW & MID FREQUENCY TRANSDUCER

Preliminary Data Sheet

● High power handling: 1.400 W program power

● Exclusive Malt Cross® Technology Cooling System

● Low power compression losses

● High sensitivity: 98 dB (1W / 1m)

● FEA optimized magnetic circuit

● Optimized non-linear behaviour

● Waterproof cone treatment on both sides of the cone

● 3” DUO double layer in/out copper voice coil

● Aluminium demodulating ring

● Extended controlled displacement: X

max

± 7 mm

● 45 mm peak-to-peak excursion before damage

● Optimized for low frequency and mid-bass applications

TECHNICAL SPECIFICATIONS

Nominal diameter
Rated impedance
Minimum impedance
Power capacity
Program power

1

2

Sensitivity
Frequency range
Recom. enclosure
(Bass-reflex design)
Voice coil diameter
Bl factor
Moving mass
Voice coil length
Air gap height
X

damage

Notes:

1

The power capaticty is determined according to AES2-1984 (r2003) standard.

2

Program power is defined as power capacity + 3 dB.

3

T-S parameters are measured after an exercise period using a preconditioning power test. The measurements are carried out with a velocity-current laser transducer and will reflect the long term parameters (once the loudspeaker has been

working for a short period of time).

4

The X

(peak to peak)

is calculated as (Lvc - Hag)/2 + (Hag/3,5), where Lvc is the voice coil length and Hag is the air gap height.

max

300 mm 12 in

8 Ω

7,1 Ω

700 W

AES

1.400 W

98 dB 1W / 1m @ ZN

55 - 4.000 Hz

Vb = 40 l

Fb = 67 Hz

76,2 mm 3 in

20,4 N/A
0,069 kg

18 mm

9,5 mm

45 mm

Resonant frequency, f
D.C. Voice coil resistance, R
Mechanical Quality Factor, Q
Electrical Quality Factor, Q
Total Quality Factor, Q
Equivalent Air Volume to Cms, V
Mechanical Compliance, C
Mechanical Resistance, R

Efficiency, η0

Effective Surface Area, S
Maximum Displacement, X
Displacement Volume, V
Voice Coil Inductance, L

THIELE-SMALL PARAMETERS

s

e

ms

es

ts

as

ms

ms

d

4

max

d

e

3

139 µm / N

5,6 kg / s

0,055 m

385 cm

0,9 mH

51 Hz

5,4 Ω

3,9
0,29
0,27

59,5 l

2,7 %

2

7 mm

3

Acústica Beyma SL - P.I. Moncada II, C/ Pont Sec, 1C - 46113 Moncada, Valencia (Spain) - Tel. [phone] - [e-mail]

www.beyma.com

01/20

12MCB700

LOW & MID FREQUENCY TRANSDUCER

Preliminary Data Sheet

[dB]

MOUNTING INFORMATION

Overall diameter

Bolt circle diameter

[Ω]

[Hz]

Note: Frequency response measured with loudspeaker standing

on infinite baffle in anechoic chamber, 1W @ 1m

DIMENSION DRAWING

312 mm 12,3 in

295 mm 11,6 in

Baffle cutout diameter:

- Front mount

Depth

Net weight

Shipping weight

Acústica Beyma SL - P.I. Moncada II, C/ Pont Sec, 1C - 46113 Moncada, Valencia (Spain) - Tel. [phone] - [e-mail]

278 mm 10,9 in

145 mm 5,7 in

7,8 kg 17,2 lb

9,5 kg 20,9 lb