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www.beyma.com
KEY FEATURES
FREE AIR IMPEDANCE CURVE
● 1,4” exit (36 mm) high frequency compression driver
● 4” (100 mm) voice coil diameter
● 200 W program power above 500 Hz
● Sensitivity: 112 dB, 2,83 V @ 1 m
● Integral pure Titanium diaphragm
● Lightweight aluminium voice coil
● Aluminium cover
● Neodymium magnet
TECHNICAL SPECIFICATIONS
Throat diameter
Rated impedance
D.C. resistance
Power capacity*
Program power
Sensitivity**
Frequency range
Recommended crossover
Voice coil diameter
Magnetic assembly weight
Flux density
BL factor
36 mm. 1,4 in.
8 Ω
5,6 Ω
100 W
AES
above 500 Hz
150 W
AES
above 1,2 kHz
200 W above 500 Hz
300 W above 1,2 kHz
112 dB 2.83v @ 1m
coupled to TD-365
0,5 - 20 kHz
0,5 kHz or higher
(12 dB/oct min.)
100 mm 4 in
3,6 kg 7,9 lb
2 T
16,5 N/A
MOUNTING INFORMATION
Overall diameter
Depth
Mounting
Net weight
Shipping weight
160 mm 6,29 in
80 mm 3,14 in
Four M6 threaded holes, 90º apart
on 101,6 mm (4”) diameter circle
4,3 kg 8,81 lb
4,8 kg 10,57 lb
DIMENSION DRAWINGS
CP-855Nd
COMPRESSION DRIVER
O
1
0
1
,
6
±
0
.
1
5
M
6
O 160 ±0.5
81
+1
0
O
3
6
[Hz]
[Ω]
Note: Electrical impedance measured coupled to TD-385 horn
Notes:
* The power capaticty is determined according to AES2-1984 (r2003) standard. Program
power is defined as the transducer’s ability to handle normal music program material.
** Sensitivity was measured at 1m distance, on axis, with 2,83 V input, averaged in the
range 1 - 7 kHz.
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Polígono Industrial Moncada II ▪ C/. Pont Sec, 1c ▪ 46113 MONCADA - Valencia (Spain)
▪ Tel.: (34) 96 130 13 75 ▪ Fax: (34) 96 130 15 07 ▪ http://www.beyma.com ▪ E-mail: beyma@beyma.com ▪
8M70-V2
LOW & MID FREQUENCY TRANSDUCER
www.beyma.com
CP-855Nd
COMPRESSION DRIVER
Note: On axis frequency response measured coupled
to TD-365 horn in anechoic chamber, 2,83 v @ 1m
[Hz]
[dB]
Note: On axis frequency response measured coupled
to TD-385 horn in anechoic chamber, 2,83 v @ 1m
[dB]
[Hz]
FREQUENCY RESPONSE AND DISTORTION
03/11
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