NEW 8” Neodymium Midrange, 2.5” voice coil, 250 W, 100 dB

 

8NM250_pic

KEY FEATURES:

  • 100 db 1W / 1m average sensitivity
  • 64 mm high temperature voice coil
  • Two demodulating rings
  • 500 W AES program power
  • Ultra low distortion

 

Application : Power midrange speaker

The 8NM250 V2 is high efficiency, high power midrande neodymium loudspeaker with ultra-low distortion, specially designed to provide superior sound pressure level. It features 64 mm aluminium voice coil, aluminium die cast frame with powerful neodymium magnet structure with double demodulating rings. It is suitable for application as high power midrange in direct radiating boxes and horn loaded application.

 

 

SPECIFICATIONS

Nominal Diameter
Impedance
Minimum Impedance
Power Capacity AES ¹
Program Power ²
Sensitivity
Frequency Range
Voice Coil Diameter
Voice Coil Material
Voice Coil Former
V. C. Winding Depth
Magnet Gap Depth
Cone Material
Basket
Magnet
Flux Density

8"/210 inch/mm
16 Ohm
13.23 Ohm
250 W
500 W
(500-5000 Hz) 100 dB/W/m
100 – 5000 Hz
64 mm
Aluminium
Glassfiber
10 mm
7 mm
Paper with carbone fiber
Die cast aluminium
Neodymium
1.55 T

THIELE-SMALL PARAMETERS

Fs
Qms
Qes
Qts
Vas
Mms
Re
Sd
Xmax*
Cms
BL 
Le at 1kHz 

67.7 Hz
13.94
0.257
0.252
8.39 Litres
16.83 grams
10.97 Ohms
202 cm2
± 4 mm
0.1501 mm/N
21.26 T.m
0.27 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
Baffle Hole Diameter
Mounting Holes
Bolt Circle Diameter
Overall Depth
Net Weight

225 mm
187 mm
8 with dia. 6.5 mm
210 mm
84 mm
2.70 kg

 

Copyright © 2018 Oberton. All Rights Reserved.
Back to Top