8MVCX (8NMB250VCX)

NEW 8" Coaxial Neodymium Loudspeaker, 2.5" LF + 1.75" HF voice coil, 250 W + 40 W , 98 dB +110 dB

KEY FEATURES:

98 db SPL 1W / 1m ( LF ) average sensitivity
62 mm ( 2.5”) high temperature voice coil ( LF )
500 W AES program power ( LF )
Double aluminium demodulating rings
Double neodymium magnet assembly
Water protected cone (front)
1” exit HF neodymium compression driver
44 mm (1.75”) HF high temperature voice coil
60 degrees nominal dispersion

PART NUMBER: 13108N0108

Application: Compact reflex boxes

The 8MVCX (8NMB250VCX) is a 8" / 1" coaxial transducer with integrated HF horn, designed for use in compact reflex enclosures with high SPL and nominal dispersion of 60 degrees.

The low profile, smooth curvilinear LF cone together with HF horn increase the SPL in vocal range, which ensure big headroom. The cone with water prove protective coating, allowing application in a wide range of environments. The state-of-the-art 62 mm (2.5 in) LF voice coil has Glassfiber former, which together with high temperature resistant resin ensure high reliability by high power.

The double aluminium demodulating rings reduce distortion and inductance and improve transient response.

The neodymium 1" exit compression driver adopted is our ND45 model.

The HF driver diaphragm assembly, using triple layer polyester dome this together with phasing plug improve linearity of frequency response in high end.

SPECIFICATIONS

Nominal diameter
Impedance
Minimum impedance LF
Frequency range
Dispersion angle

LF unit
Sensitivity (200-2000 Hz)
Power Capacity AES ¹
Program Power ²
Voice Coil Diameter
Voice Coil Material
Voice Coil Former
V. C. Winding Depth
Magnet Gap Depth
Cone Material
Basket
Magnet
Flux Density

HF unit
Minimum impedance HF
DC resistance
Sensitivity (1-15 kHz)
Power capacity (1-20 kHz)
Program power
Voice coil diameter
Winding material
Diaphragm material
Flux density

210 mm (8 in)
LF 8 Ohm /HF 16 Ohm
6.87 Ohm
85 - 20000 Hz
60 deg

98 dB
250 W
500 W
62 mm (2.5 in)
Aluminium
Glassfiber
12 mm
7 mm.
Paper with carbon fibers
Die Cast Aluminium
Neodymium
1.55 T

12.37 Ohms
10.6 Ohms
110 dB
40 W
80 W
44 mm (1.75 in)
Aluminium
sandwich polyester
1.9 T

THIELE-SMALL PARAMETERS

Qms

Qes

Qts

Vas

Mms

Xmax*

Cms

Le at 1kHz

85.17 Hz

7.24

0.168

0.164

10.66 L

18.30 g

5.40 Ohms

202 cm2

± 4.25 mm

0.191 mm/N

17.76 T.m

0.068 mH

1. AES standard. Power is calculated on rated minimum impedance. Measurement is in 18 L box enclosure tuned 82 Hz using a 60-2000 Hz band limited pink noise test signal applied continuously for 2 hours.
2. Program power is defined as 3db greater than AES Power Capacity.
* Linear Mathematical Xmax is calculated as: (Hvc - Hg)/2 + Hg/4 where Hvc is the voice coil depth and Hg is the gap depth.

MOUNTING INFORMATION

Overall diameter
Depth
Baffle hole diameter
Bolt circle diameter
Mounting holes
Net weight

225 mm (8 in)
162.3 mm
187 mm
210 mm
8 with dia 6.5 mm
3.88 kg

LF Recone Kit:
RK8MVCX, part No: R3108N0108

HF Service Kit:
Diaphragm assembly:
NDA45_1/h-16 PET part No: R411700616

8NMB250VCX к

Frequency Response

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Assem 8NMB250VCX dr