Hornresp
.txt · Hornresp driver database
Driver file ready to place in Hornresp’s Drivers folder.
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Overview
LF Driver8NMB series
Oberton
Oberton 8NMB250v4
Oberton 8NMB250v4 is a 8" 8 ohm LF driver rated at 250W RMS. The validated T/S data includes Fs 82Hz, Qts 0.26, Vas 10.9L, Xmax 4.5mm, sensitivity 95.5dB, plus 91cm³ Vd and 305 EBP. bits tracks vendor pricing, datasheet links, simulator import data, and similar drivers from the same loudspeaker database.
Size
8"
Impedance
8Ω
RMS Power
250W
Sensitivity
95.5dB
100.0dBmanufacturer; using T/S-derived value (4.5dB delta).
EBP
305
Vented alignment
Vd
91cm³
T/S Parameters
Valid
Fs82Hz
Qts0.26
Qes0.27
Qms6.4
Vas10.9L
Re5.5Ω
Le0.13mH
BL14.3Tm
Sd202cm²
Mms19g
Xmax4.5mm
SPL96dB
Power250W
Impedance8Ω
Min Impedance6.6Ω
F Low80Hz
F High4000Hz
Voice Coil64mm
Flux Density1.45T
Pricing & availability
Price definitionsNo current price found
Pricing may appear after the next vendor refresh.
Use this driver
Open it in 00 Simulator, download it for your enclosure tool, or copy the specification values.
Files use canonical values. Required mechanical fields are derived only where the target format needs them.
WinISD
.wdr · WinISD driver editor
Native WinISD driver record with the required SI conversions.
Download for WinISDBASTA!
.bastaelement · BASTA! loudspeaker simulator
Native BASTA! element file using its documented SI-unit fields.
Download for BASTA!VituixCAD
.wdr · VituixCAD 2 Enclosure
A WinISD driver file that VituixCAD imports directly.
Download for VituixCAD00 Simulator
Direct import · Web app
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Plain text · Clipboard
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Dimensions & Physical
Weight2.6kg
Diameter225.0mm
Overall Depth83.5mm
Cutout Diameter187.0mm
Bolt Circle Diameter210.0mm
Similar Drivers
Size stays fixed. Tune the T/S ranges to change what counts as a match, or add a specific driver to compare it directly.
Reference
Oberton
8NMB250v4
8"
Compare on
Matches sit inside every range. Size stays fixed automatically.
5 active T/S params, plus size.
12 matches
Compare a specific driver
Added drivers stay at the front of the list, whatever the ranges say.
82%
Similarity
Sica
8 K 3 PL
8"
Xmax5mm+11%
Qts0.25-3%
BL16.1Tm+13%
Vas12.2L+12%
Qes0.270%
82%
Similarity
£99.92
RCF
MB8N251
8"
Xmax5mm+11%
Qts0.25-3%
BL15.2Tm+7%
Vas13L+19%
Qes0.26-3%
81%
Similarity
£123.00
B&C
8NDL64
8"
Xmax4.5mm0%
Qts0.25-3%
BL17.5Tm+23%
Vas9.6L-12%
Qes0.25-7%
81%
Similarity
Oberton
8NB201
8"
Xmax5.3mm+17%
Qts0.24-5%
BL14.4Tm+1%
Vas12.5L+15%
Qes0.26-5%
76%
Similarity
Monacor
FTX0820/8
8"
Xmax4mm-11%
Qts0.28+8%
BL14.6Tm+2%
Vas13.1L+20%
Qes0.31+15%
76%
Similarity
£139.00
Celestion
FTX0820
8"
Xmax4mm-11%
Qts0.28+8%
BL14.6Tm+2%
Vas13.1L+21%
Qes0.31+15%
75%
Similarity
CIARE
FXI8
8"
Xmax4.5mm0%
Qts0.29+12%
BL13.3Tm-7%
Vas13L+19%
Qes0.32+19%
72%
Similarity
B&C
8CLA64
8"
Xmax5.3mm+18%
Qts0.24-7%
BL16.4Tm+15%
Vas12.5L+15%
Qes0.25-7%
71%
Similarity
£137.66
BMS
8S215
8"
Xmax4.3mm-6%
Qts0.31+20%
BL13.6Tm-5%
Vas11L+1%
Qes0.33+23%
70%
Similarity
PRV Audio
8MR600X-NDY
8"
Xmax3.8mm-17%
Qts0.29+12%
BL15.2Tm+6%
Vas12.6L+16%
Qes0.3+12%
70%
Similarity
£219.76
FaitalPRO
8HX200
8"
Xmax4.9mm+9%
Qts0.3+16%
BL13.8Tm-3%
Vas13.1L+20%
Qes0.31+15%
67%
Similarity
Sica
8 FE 2.5 CP
8"
Xmax4mm-11%
Qts0.28+9%
BL13Tm-9%
Vas15.6L+43%
Qes0.3+12%