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 |
- 95.5 dB sensitivity 1 W / 1 m
- 200 W + 80 W Power Handling
- 2" + 1.75" Aluminum Sandwich Voice Coil
- Single Point Source providing coherent Wave Front
- 90° conical Dispersion
- Optimal for compact 2-way Systems
- Ligh weight Carbon Fiber Diaphragm
| Product type
Loudspeaker Chassis
Type
PA
Nominal Diameter
8 "
Nominal Diameter
200 mm
Voice Coil
1.46 "
Voice Coil
37 mm
Overall diameter
209.2 mm
Pitch Circle Diameter
196.9 mm
Cut- out Measurement
178 mm
Mounting holes
8
Diameter of fixing holes
6 mm
Depth
89 mm
Nominal Impedance
8 Ohm(s)
Nominal Load Capacity
130 W
maximum rated load
260 W
Sensitivity (1 W / 1 m)
95 dB
Frequency response
60 - 5000 Hz
Voice Coil Material
Aluminum
Magnet
Ferrite
Depth of the magnetic gap
6 mm
Thiele & Small Parameter
Fs (Resonance Frequency)
80 Hz
Re (DC resistance)
5.9 Ohm(s)
Qms (mechanical quality)
13
Le (inductance of the voice coil)
0.44 mH
Qes (electrical quality)
0.66
Qts (overall quality)
0.63
Vas (equivalent volume)
13.6
Mms (moving mass)
15 g
BL (power factor)
8.2 T/m
Xmax (maximum displacement)
4.67 mm
Cms (elasticity of the suspension)
0.36 mm/N
Sd (membrane area)
191 cm²
Rms (mechanical loss resistance)
0.6 kg/s
Weight
2,2 kg | ALPHA- Serie 100W- 200W
Recommended for professional audio mid-range applications in a sealed cabinet, or as a mid-bass in a vented
satellite enclosure.
SPECIFICATION
- Nominal Basket Diameter 8“, 203.2 mm
- Nominal Impedance 8 ohms
- Power Rating Watts 125 W / Music Program 250 W
- Resonance 73 Hz
- Usable Frequency Range 58 Hz - 5 kHz
- Sensitivity 94
- Magnet Weight 20 oz.
- Gap Height 0.25“, 6.35 mm
- Voice Coil Diameter 1.5“, 38.1 mm
THIELE & Small Parameters
- Resonant Frequency (fs) 73 Hz
- DC Resistance (Re) 5.3
- Coil Inductance (Le) 0.44 mH
- Mechanical Q (Qms) 4.6
- Electromagnetic Q (Qes) 0.68
- Total Q (Qts) 0.59
- Compliance Equivalent Volume (Vas) 17.7 liters / 0.6 cu. ft.
- Peak Diaphragm Displacement Volume (Vd) 67 cc
- Mechanical Compliance of Suspension (Cms) 0.28 mm/N
- BL Product (BL) 7.8 T-M
- Diaphragm Mass inc. Airload (Mms) 17 grams
- Efficiency Bandwidth Product (EBP) 107
- Maximum Linear Excursion (Xmax) 3.2 mm
- Surface Area of Cone (Sd) 210.0 cm²
- Maximum Mechanical Limit (Xlim) 7.1 mm
MOUNTING Information
- Recommended Enclosure Volume
Sealed 5-7 liters / 0.18-0.25 cu. ft.
Vented 16.7-25.5 liters / 0.59-0.90 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 3.25“, 83 mm
MATERIALS of Construction
- Copper voice coil
- Polyimide former
- Ferrite magnet
- Vented core
- Pressed steel basket
- Paper Cone
- Cloth cone edge
- Solid composition paper dust cap
|
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
|
Mεγάφωνο 8" ομοαξονικό με μαγνήτες Νεοδυμίου, 8Ω, απόκριση 70-18000 Hz, LF 500W / 250W(Continuous / Nominal) 97dB, HF 100W /50W (Continuous / Nominal) 104dB, βάρος 2,5Kg. | Weight | 1.52 kg | 2.15 kg | 2.20 kg | 2.50 kg | 1.00 kg | 2.50 kg |
Dimensions | Μ/Δ | Μ/Δ | Μ/Δ | Μ/Δ | Μ/Δ | Μ/Δ |
Additional information |
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