Hallo
i am startet to find all the drivers for a 4344 clon (i already got JBL 2226H and some empty 2226H chassis that i will recone to 2235H
atm i am looking for the high driver 2425J
After what i can read on this forum 2425J and 2426J is the same? the 2425J is just the old production, but they should be similar in terms and speck, is that right?
and now i have strompled on the JBL 276ND (the 275ND is used in the 4344 MKII)
and it looks for me that the 276ND has the same spec as the 2425J and the 2426J
Is there someone who can confirm that i can replase the 2425J with the 275ND and use the same crossover? (see data below)
2425 Specifications:
http://www.jblpro.com/pub/obsolete/2425hj.pdf
2426 Specifications:Throat Diameter: 25 mm (1 in)Nominal Impedance: 2426H - 8 ohms2426J - 16 ohmsMinimum Impedance: 5 ohms (H), 9 ohms (J) @ 5 kHzD.C. Resistance: 3.3 ohms (H), 6.5 ohms (J) ± 10% @ 25°CPower Capacity1: 70 W continuous program above 800 Hz100 W continuous Program above 1.2 kHzSensitivity: 107 dB SPL, 1 W @ 1 m, JBL 2344A horn2110 dB SPL, 1 W @ 1 m, JBL 2370A horn2117 dB SPL, 1 mW on plane wave tubesNominal Efficiency: 25% (800 Hz to 2.5 kHz)Frequency Range: 500 Hz to 20 kHzRecommended Crossover4: 800 Hz or higher, 12 dB/octave slope minimunDiaphragm: 0.05 mm (0.002 in) pure titaniumVoice Coil Diameter: 44 mm (1% in)Voice Coil Material: Edgewound aluminum ribbonFlux Density: 1.8 T (18,000 gauss)Bl Factor: 6.3 N/A(H)9.3 N/A (J)Positive voltage to black terminal gives diaphragm motion toward phasing plugMOUNTING INFORMATION:Mounting: Three ¼-20 threaded holes, 120° apart on 57.2 mm(2¼ in) diameterFront snout may be removed (unscrewed) to exposestandard 1 3/8 in -18 screw threadsDimensions: 149 mm (5 7/8 in) diameter104 mm (4 1/8 in) depthNet Weight: 4.3 kg (9½ lb)
https://www.parts-express.com/pedocs...ifications.pdf
276ND Specifocations:
Throat Diameter: 25 mm (1 in)
Nominal Impedance:
2426H - 8 ohms
2426J - 16 ohms
276ND - 8 ohms
Minimum Impedance: 5 ohms (H), @ 5 kHz
D.C. Resistance: 3.3 ohms (H), ± 10% @ 25°C
Power Capacity1:
70 W continuous Program above 800 Hz
100 W continuous Program above 1.2 kHz
Sensitivity: 107 dB SPL, 1 W @ 1 m, JBL 2344A horn
110 dB SPL, 1 W @ 1 m, JBL 2370A horn
117 dB SPL, 1 mW on plane wave tubes
Nominal Efficiency: 25% (800 Hz to 2.5 kHz)
Frequency Range: 500 Hz to 20 kHz
Recommended Crossover4: 800 Hz or higher, 12 dB/octave slope minimum
Diaphragm: 0.05 mm (0.002 in) pure titanium
Voice Coil Diameter: 44 mm (1% in)
Voice Coil Material: Edgewound aluminum ribbon
Flux Density: 1.8 T (18,000 gauss)
Bl Factor: 6.3 N/A(H)
Positive voltage to black terminal gives diaphragm motion toward phasing plug
MOUNTING INFORMATION:
standard 1 3/8 in -18 screw threads
Dimensions: 149 mm (5 7/8 in) diameter
104 mm (4 1/8 in) depth
Net Weight: 4.3 kg (9½ lb)
https://picclick.com/JBL-276-compres...465906172.html
BR
Manley