JBL 4670D Cinema Loudspeaker System, 34Hz to 20kHz Frequency Range, 100dB Sensitivity

The JBL 4670D Cinema Loudspeaker System provides powerful, smooth and accurate reproduction of cinema soundtracks from a compact and effective system. The system is comprised of two parts: the 4670D-HF high frequency pack and the 4638TH low frequency system.

The 4670D-HF high frequency pack features the JBL 2446H, 100 mm (4") diaphragm compression driver, JBL 2380A Bi-Radial horn and JBL 2509 adjustable bracket. Together, these elements provide clear, accurate reproduction of the mid/high frequency information. All of these components come pre-assembled to reduce field assembly time.

The 4638TH employs the latest in JBL low frequency transducer technology offering exceptional performance benefits. The JBL 2035H 380 mm (15") transducer employs a copper-sleeved magnetic pole piece providing a stabilized magnetic field, which provides lower second and third order harmonic distortion and flat power response.

The copper-sleeved pole piece reduces flux modulation and acts as a shorted turn causing the impedance curve to flatten at higher frequencies. This helps in maintaining a smooth transition between the low and high frequency devices in the crossover region producing, among other things, accurate reproduction of dialog throughout the entire listening area.