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Nominal Specifications - Nominal Diameter 3“, 80 mm
- Overall Diameter 3.1“, 81 mm
- Bolt Circle Diameter 3.62“, 92 mm
- Baffle Cutout Diameter 2.9“, 73.6 mm
- Depth 1.55“, 46 mm
- Flange and Gasket Thickness 0.26“, 6.5 mm
Electrical Specifications - Minimum Impedance 6.2 Ohm
- Nominal Impedance 8 Ohm
- Nominal Power Handling*** 20 W
- Maximum Power Handling**** 40 W
- Sensitivity (1W/1m) 91 dB
- Frequency Range 100 - 20,000 Hz
- Voice Coil Diameter 0.75“, 19 mm
- Winding Material Aluminium
- Former Material Kapton
- Winding Depth 0.26“, 5 mm
- Magnetic Gap Depth 0.2“, 4 mm
- Flux Density 1.5 T
THIELE & SMALL Parameters - Resonant Frequency (fs) 110 Hz
- DC Resistance (Re) 6.2Ohm
- BL Product (BL) 4.5N/A
- Diaphragm Mass inc. Airload (Mms) 2.4 grams
- Mechanical Compliance of Suspension (Cms) 0.7 mm/N
- Rms 0.35 Kg/s
- Electromagnetic Q (Qes) 0.5
- Mechanical Q (Qms) 5
- Total Q (Qts) 0.45
- Compliance Equivalent Volume (Vas) 0.03 ft³, 0.95 dm³
- Surface Area of Cone (Sd) 4.5“², 29.4 cm²
- Maximum Linear Excursion (Xmax)* 1.8 mm
- Xdamage** 7.3 mm
- Coil Inductance (Le) 0.15 mH
- Diaphragm mass (Mmd) 2.3 g
- Eta Zero 0.28 %
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
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LSR25P LF Driver Description:
This is the JBL low frequency driver (MPN 124-10002-00) for the LSR25P powered reference monitor. It is a genuine JBL replacement part sold to you sealed just the way we get it from JBL. The device is mounted in a frame which bolts into the front baffle of the speaker from the inside. You must dismantle the speaker to replace this driver. Order carefully, returns for your mistakes are not allowed.
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5" Neodymium Coaxial Transducer - 90 dB sensitivity 1 W / 1 m
- 130 W + 25 W Power Handling
- 1.5" + 1" Voice Coil
- Single point source providing coherent wave front
- 90° conical dispersion
- Optimal for compact 2-way Systems
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JBL Control 24 Series Driver Description: This (MPN 124-13000-00) is a replacement JBL Control 24 series coaxial driver.
This is a replacement JBL Control 24 series coaxial driver. It has a set of input spades for the LF part and a separate pair of wires exiting thru the back of the magnet to reach the voice coil of the HF unit. Compact and tough, a mighty reproducer in a small package. Remember, it does not include a crossover network. It is intended as a replacement for a blown unit in a JBL Control 24 series unit...you hobbiests will have to provide the external crossover that is already in the Control 24 mounting container. The opening for a front load is 3.5+" with the overall depth of 4" and 3.16" remaining under the baffle. It is a genuine replacement part and it is shipped to you sealed just the way we get it from JBL.
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- 91 dB sensitivity 1 W / 1 m
- 130 W + 60 W Power Handling
- 1.5" + 1.5“ Copper Voice Coil
- Single Point Source providing coherent Wave Front
- 90° conical Dispersion
- Optimal for compact 2-way Systems
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