| Content |
- 94 dB sensitivity 1 W / 1 m
- 250 W Power handling
- 2" voice coil
- Double treated cone for water protection
- Neodymium magnet system
- Tripie aluminum demodulating rings for ultra low distortion
- Optimal for compact 2-way systems
- Light weight carbon fibre diaphragm
|
-
- 8” neodymium magnet driver with 1.5” voice coil, providing 200Wrms (AES) continuous power handling
- Suitable for line array applications, utilizing a space-efficient octagonal chassis profile
- Optimized flux distribution in the magnet assembly provides low harmonic distortion
- M-roll surround provides progressive excursion control, generating a smooth frequency response
- Intelligent heat management in both chassis and magnet assembly design offers reduced thermal compression
General specifications
| Nominal diameter (mm/in) |
203/8 |
| Power Rating (AES, W rms) |
200 |
| Nominal impedance (Ω) |
8 |
| Voice coil diameter (mm/in) |
50.8/2.0 |
| Magnet type |
Neodymium |
| Chassis type |
Cast aluminium |
| Sensitivity (dB) |
92 |
| Frequency range (Hz) |
70-6000 |
| Coil material |
Round copper |
| Cone material |
Kevlar loaded paper |
| Surround material |
Cloth-sealed |
| Suspension |
Single |
| Xmax (mm/in) |
4/0.16 |
| Gap depth (mm/in) |
8.0/0.32 |
| Voice coil winding width (mm/in) |
15.0/0.63 |
Small Signal Parameters
| D (m/in) |
0.17 |
| Fs (Hz) |
80.3 |
| Mmd (g/oz) |
22.39 |
| Mair |
1.94 |
| Qms |
1.33 |
| Qes |
0.59 |
| Qts |
0.41 |
| Re (Ω) |
5.85 |
| Vas (lt/ft3) |
11.3/0.399 |
| BI (Tm) |
11.22 |
| Cms (mm/N) |
0.16 |
| Rms (kg/s) |
9.6 |
| Le (mH) |
|
Mounting Information
| Overall diameter (mm/in) |
225/8.8 |
| Overall depth (mm/in) |
100/4.16 |
| Cut-out diameter (mm/in) |
187/7.4 |
| Mounting slot dimensions (mm/in) |
6.5/0.26 |
| Number of mounting slots |
8 |
| Mounting slot PCD/ width accross flats |
210/8.3 |
| Unit weight (kg/lb) |
1.52/3.34 |
|
JBL 124-58001-00 Woofer from JBL for control 28 speaker. - JBL Control 28 Factory Speaker Woofer Part # 124-58001-00
- This is a complete brand new JBL, Control 28 woofer
- Voice coil: 1-1/2" (25mm)
- Diameter: 8-1/4" (210mm) 9-1/4" (235mm) diagonally
- Impedance: 8 ohm, DCR: 6 ohm
- Poly cone with rubber edge
- Fits JBL Driver and Cabinet Models:
JBL: Control 28, Control 28T, Control 28T60, Control 28WH, 123-10002-00, 1231000200124-58001-00, 1245800100
|
Nominal Specifications
* Nominal Diameter 8“, 200 mm
* Overall Diameter 8.81/8.18“, 223.8/203.9 mm
* Bolt Circle Diameter 8.27“, 210 mm
* Baffle Cutout Diameter 7.24“, 184 mm
* Depth 4.59“, 116.7 mm
* Flange and Gasket Thickness 0.42“, 10.7 mm
Electrical Specifications
* Minimum Impedance 6.4 Ohm
* Nominal Impedance 8 Ohm
* Nominal Power Handling*** 200 W
* Maximum Power Handling**** 400 W
* Sensitivity (1W/1m) 95 dB
* Frequency Range 60 - 5000 Hz
* Voice Coil Diameter 2“, 52 mm
* Winding Material Aluminium
* Former Material Glass Fiber
* Winding Depth 0.76“, 19.3 mm
* Magnetic Gap Depth 0.35“, 9 mm
* Flux Density 1.15 T
THIELE & SMALL Parameters
* Resonant Frequency (fs) 58 Hz
* DC Resistance (Re) 5.1 Ohm
* BL Product (BL) 11.3 N/A
* Diaphragm Mass inc. Airload (Mms) 24 grams
* Mechanical Compliance of Suspension (Cms) 0.31 mm/N
* Rms 0.93 Kg/s
* Electromagnetic Q (Qes) 0.34
* Mechanical Q (Qms) 9.4
* Total Q (Qts) 0.35
* Compliance Equivalent Volume (Vas) 0.62 ft³, 17.6 dm³
* Surface Area of Cone (Sd) 30.8“², 199 cm²
* Maximum Linear Excursion (Xmax)* 8.15 mm
* Xdamage** 13.5 mm
* Coil Inductance (Le) 0.55 mH
* Diaphragm mass (Mmd) 22 g
* Eta Zero 1.02 %
Notes
* *Xmax = [(winding depth - magnetic gap depth) / 2] + (magnetic gap depth / 3)
* **Maximum excursion before permanent damage
* ***2 Hours Test According to AES 2-1984 Rev. 2003
* ****Maximum power is defined as 3dB greater than nominal power
| The B&C Speakers 8NDL51-16 is an efficient and lightweight cast frame 8" neodymium driver. Its ventilated voice coil gap ensures long term power handling and reduced power compression, and a copper cap on the pole piece reduces inductance and extends high frequency response. The 8NDL51-16 is highly recommended for compact 2-way speaker systems or as the midbass/midrange element in high-output 3-way and 4-way designs.
- Great for line arrays and horn loading
- Neodymium magnet assembly
- Ventilated voice coil gap for reduced power compression
- Inductance-reducing copper cap on pole piece extends HF response
- 2" copper voice coil on polyimide former
- 400 watts continuous program power capacity
- 65 - 3,000 Hz response
|
- 96 dB Sensitivity 1 W / 1 m
- 200 W Power Handling
- 2" Aluminium Sandwich Voice Coil for low Power Compression
- Double treated Cone for Water Protection
- Neodymium Magnet System
- Triple Aluminum demodulating Rings for ultra low Distortion
- Optimal for compact 2- or 3-way Systems
|
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