PACKAGING
4428 WIRING DIAGRAM
4428 SCHEMATIC
Technical Manual
4428
ACOUSTIC & ELECTRICAL SPECIFICATIONS:
•Nominal Impedance 8 ohms
• Max Amp Power 200 watts*
•Frequency Response 40Hz – 40kHz (–6dB)
• Sensitivity 91dB (2.83V @ 1 meter)
•Crossover Frequencies 900Hz, 7kHz
SYSTEM COMPONENTS:
• Cabinet 4428 (not for sale)
• Grille 351440-001
• UHF Transducer 7/8" (22mm) 015M
351265-001
DC Resistance 6.7 ohms ±10%
• High-Frequency Transducer 1-3/4" (44.4mm) 175Nd-2
339811-001
DC Resistance 3.7 ohms ±10%
• Low-Frequency Transducer 12" (305mm) 1200FE-8
339200-002
DC Resistance 5.6 ohms ±10%
•Crossover Network – LF 351410-002
HF/UHF w/L-Pad 351410-001
AURAL SWEEP TEST SPECIFICATIONS:
• System Aural Sweep Test 6.0V Input 40Hz to 20kHz
• L.F. Aural Sweep Test 6.0V Input 20Hz to 1.5kHz
• H.F. Aural Sweep Test 2.83V Input 500Hz to 8kHz
• U.H.F. Aural Sweep Test 1.0V Input 5kHz to 20kHz
PHYSICAL SPECIFICATIONS:
• Enclosure dimensions 25" x 16" x 12-1/2"
(H x W x D) (plus 1" for horn mouth)
(635mm x 406mm x 318mm)
•Weight 71 lb (32.3kg) each
WARRANTY:
• Refer to Warranty Statement packed with each product.
* The maximum recommended amplifier power rating will
ensure proper system headroom to allow for occasional
peaks. We do not recommend sustained operation at these
maximum power levels.
®
To Next Page
Need help?
General
