| Content |
Rated Power Handling: 300 Watts Program Power: 600 Watts Sensitivity 2.83V @ 1M: 95 dB Frequency Range @ -10Db: 76-6,000 Hz Resonance Frequency (Fs): 76.04 Hz Xmax: 6 mm Voice Coil Diameter: 2" Nominal Impedance: 8 Magnet Material: Ferrite Frame Material: Die Cast Aluminum Weight: 6.55 Lbs Mounting Depth: 3.11" (79 mm) MSRP: $103.58 |
50 mm (2 in) copper voice coil
70 - 3000 Hz response
94 dB sensitivity
Neodymium magnet allows a very light yet powerful motor assembly
Shorting copper cap for extended HF response
400 W continuous program power capacity
Ventilated voice coil gap for reduced power compression
Compatible with NEXO PS8
- Specifications
- Nominal diameter200 mm (8.0 in)
- Nominal impedance8 Ω
- Minimum impedance6.6 Ω
- Nominal power handling *200 W
- Continuous power handling *400 W
- Sensitivity (1W/1m) *94.0 dB
- Frequency range65 - 3000 Hz
- Voice coil diameter51 mm (2.0 in)
- Winding materialCopper
- Former materialGlass Fibre
- Winding depth17 mm (0.65 in)
- Magnetic gap depth8 mm (0.31 in)
- Flux density1.05 T
- Design
- Surround shapeDouble Roll
- Cone shapeExponential
- Magnet materialNeodymium Inside Slug
- SpiderSingle
- Pole designStraight Pole
- Woofer cone treatmentTWP Waterproof Both Sides
- Recommended enclosure14.0 dm3 (0.49 ft3)
- Recommended tuning65 Hz
- Parameters *
- Fs66 Hz
- Re5.3 Ω
- Qes0.41
- Qms3.6
- Qts0.37
- Vas14.0 dm3 (0.5 ft3)
- Sd220.0 cm2 (34.1 in2)
- η₀1.0 %
- Xmax7.0 mm
- Xvar7.0 mm
- Mms28 g
- Bl12.4 Txm
- Le0.5 mH
- EBP160 Hz
- Mounting And Shipping Info
- Overall diameter225 mm (8.8 in)
- Bolt circle diameter210 mm (8.3 in)
- Baffle cutout diameter187.0 mm (7.4 in)
- Depth90 mm (3.5 in)
- Flange and gasket thickness11 mm (0.4 in)
- Air volume occupied by driver1.1 dm3 (0.04 ft3)
- Net weight1.8 kg (4.0 lb)
- Shipping units1
- Shipping weight2.2 kg (4.8 lb)
- Shipping box300x160x180 mm (11.8x6.3x7.1 in)
| BETA Serie 225W- 350W
Recommended for professional audio mid-bass applications or as a woofer in vented enclosures. Also suitable
as a mid-bass speaker in sealed enclosures.
SPECIFICATION
- Nominal Basket Diameter 8“, 203.2 mm
- Nominal Impedance 8 ohms
- Power Rating Watts 225 W / Music Program 450 W
- Resonance 65 Hz
- Usable Frequency Range 78 Hz - 4.5 kHz
- Sensitivity 95.1
- Magnet Weight 34 oz.
- Gap Height 0.312“, 7.92 mm
- Voice Coil Diameter 2“, 50.8 mm
THIELE & Small Parameters
- Resonant Frequency (fs) 65 Hz
- DC Resistance (Re) 5.99
- Coil Inductance (Le) 0.49 mH
- Mechanical Q (Qms) 4.95
- Electromagnetic Q (Qes) 0.42
- Total Q (Qts) 0.38
- Compliance Equivalent Volume (Vas) 23.3 liters / 0.82 cu. ft.
- Peak Diaphragm Displacement Volume (Vd) 63 cc
- Mechanical Compliance of Suspension (Cms) 0.37 mm/N
- BL Product (BL) 9.6 T-M
- Diaphragm Mass inc. Airload (Mms) 16 grams
- Efficiency Bandwidth Product (EBP) 156
- Maximum Linear Excursion (Xmax) 3.0 mm
- Surface Area of Cone (Sd) 210.0 cm²
- Maximum Mechanical Limit (Xlim) 7.4 mm
MOUNTING Information
- Recommended Enclosure Volume
Sealed 5.7-9.9 liters/0.2-0.35 cu.ft.
Vented 8.5-19 liters/0.3-0.67 cu.ft.
- Overall Diameter 8.24“, 209.2 mm
- Baffle Hole Diameter 7.13“, 181 mm
- Front Sealing Gasket fitted as standard
- Rear Sealing Gasket fitted as standard Mounting Holes Diameter 0.22“, 5.5 mm
- Mounting Holes B.C.D. 7.75“, 196.9 mm
- Depth 3.5“, 89 mm
MATERIALS of Construction
- Aluminum voice coil
- Polyimide former
- Ferrite magnet
- Vented core
- Pressed steel basket
- Paper Cone
- Cloth cone edge
- Solid composition pape dust cap
|
Nom. Diameter 200 mm (8 in)
Overall Diameter 223.75/207.9 mm (8.81/8.19 in)
Bolt Circle Diameter 210 mm (8.27 in)
Baffle Cutout Diameter 183 mm (7.20 in)
Depth 110.7 mm (4.36 in)
Flange and Gasket Thickness 10.7 mm (0.42 in)
Net Weight 2.7 Kg (5.95 lb)
Shipping Box
(Single Carton Box) 246x246x150 mm (9.69x9.69x5.91 in)
Shipping Weight 3.4 Kg (7.50 lb)
Nom. Impedance 8 Ohm 8 Ohm
Minimum Impedance 6.6 Ohm 6.9 Ohm
Nom. Power Handling *** 250 W 30 W
Max Power Handling **** 500 W 60 W
Sensitivity (1W/1m) ***** 95 dB 107 dB
Frequency Range 75÷4000 Hz 1500÷20000 Hz
Voice Coil Diameter 65 mm (2.50 in) 37 mm (1.46 in)
Winding Material Al Al
Former Material Glass Fiber Kapton
Winding Depth 12.5 mm (0.49 in) 2.1 mm (0.08 in)
Magnetic Gap Depth 8 mm (0.31 in) 2.6 mm (0.10 in)
Flux Density 1.2 T 1.85 T
Min. Cross. Freq. ****** - 1700 Hz
Dispersion Angle - 90°
Diaphragm Material - Ketone Polymer
Diaphragm Shape - Annular
Fs 76 Hz
Re [LF] 5.5 Ohm
Re [HF] 5.5 Ohm
Qes 0.31
Qms 10.5
Qts 0.3
Vas 12.6 dm^3 (0.44 ft^3)
Sd 211 cm^2 (32.71 in^2)
Xmax * 4.92 mm
Xdamage ** 10.2 mm
Mms 22 g
Bl 13.7 N/A
Le 0.51 mH
Mmd 20.3 g
Cms 0.2 mm/N
Rms 1 Kg/s
Eta Zero 1.74 %
EBP 245 Hz
|
Nominal Specifications - Nominal Diameter 8“, 200 mm
- Overall Diameter 8.81/8.18“, 223.7/207.9 mm
- Bolt Circle Diameter 8.27“, 210 mm
- Baffle Cutout Diameter 7.20“, 183 mm
- Depth 3.88“, 98.5 mm
- Flange and Gasket Thickness 0.43“, 10.8 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) 97 dB
- Frequency Range 80 - 6300 Hz
- Voice Coil Diameter 2“, 52 mm
- Winding Material Aluminium
- Former Material Glass Fiber
- Winding Depth 0.39“, 9.8 mm
- Magnetic Gap Depth 0.31“, 8 mm
- Flux Density 1.3 T
THIELE & SMALL Parameters - Resonant Frequency (fs) 90 Hz
- DC Resistance (Re) 5.3 Ohm
- BL Product (BL) 13 N/A
- Diaphragm Mass inc. Airload (Mms) 23 grams
- Mechanical Compliance of Suspension (Cms) 0.14 mm/N
- Rms 1.53 Kg/s
- Electromagnetic Q (Qes) 0.41
- Mechanical Q (Qms) 8.5
- Total Q (Qts) 0.39
- Compliance Equivalent Volume (Vas) 0.29 ft³, 8.26 dm³
- Surface Area of Cone (Sd) 32.09“², 207 cm²
- Maximum Linear Excursion (Xmax)* 3.57 mm
- Xdamage** 10.65 mm
- Coil Inductance (Le) 0.41 mH
- Diaphragm mass (Mmd) 21.2 g
- Eta Zero 1.44 %
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
|
Reviews
There are no reviews yet.