www.beyma.com

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.

** 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).

*** The Xmax is calculated as (Lvc - Hag)/2 + (Hag/3,5), where Lvc is the voice coil length and 

Hag is the air gap height.

Nominal diameter
Rated impedance
Minimum impedance
Power capacity*
Program power
Sensitivity
Frequency range
Recom. enclosure vol.
Voice coil diameter
Bl factor
Moving mass
Voice coil length
Air gap height
X

damage

 (peak to peak)

380 mm    15 in

8 Ω

6,3 Ω

800 W

AES

1600 W

101 dB   1W @ 1m @ Z

N

30 - 4.000 Hz

40 / 150 l     1,41 / 5,3 ft

3

101,6 mm          4 in

22,1 N/A
0,088 kg

20 mm
12 mm
52 mm

Overall diameter
Bolt circle diameter
Baffle cutout diameter:
 - Front mount
Depth
Net weight
Shipping weight

388 mm      15,28 in
370 mm      14,57 in

349,5 mm      13,76 in

163 mm        6,42 in

12,5 kg      27,56 lb
13,5 kg      29,76 lb

KEY FEATURES

THIELE-SMALL PARAMETERS**

TECHNICAL SPECIFICATIONS

MOUNTING INFORMATION

DIMENSION DRAWINGS

Resonant frequency, f

s

D.C. Voice coil resistance, R

e

Mechanical Quality Factor, Q

ms

Electrical Quality Factor, Q

es

Total Quality Factor, Q

ts

Equivalent Air Volume to C

ms

, V

as

Mechanical Compliance, C

ms

Mechanical Resistance, R

ms

Efficiency, η

0

 

Effective Surface Area, S

d

 

Maximum Displacement, X

max

 ***

Displacement Volume, V

d

Voice Coil Inductance, L

e

 

@ 1 kHz

32 Hz

5,3 Ω

5,5

0,19
0,18

305 l 

279 

µ

m / N

3,2 kg / s

5 %

0,088 m

2

7,5 mm

660 cm

3

1,2 mH

15P80Fe/N

LOW FREQUENCY TRANSDUCER

P80 Series

●  1.600 W program power
●  High sensitivity: 101 dB (1W / 1m)
●  FEA optimized magnetic circuit
●  Forced air convection circuit for low power compression
●  CONEX spider for higher resistance and consistency
●  Waterproof treatment for both sides of the cone
●  4” duo technology voice coil
●  Designed with MMS technology for high control, linearity and 

low harmonic distortion

●  Extended controlled displacement: X

max

 ± 7,5 mm

●  Massive mechanical displacement capability: X

damage

 ± 52 mm 

●  Excellent response in high efficiency and horn loading systems