JBL4771A, cerco informazioni

[Fotony]

Ciao a tutti,

da un bel po' si trova un annuncio su subito di vendita di questi diffusori.

Siccome non trovo nulla on-line qualcuno mi potrebbe dire cosa sono?!?!? 😀

[c10m]

The 4771A is based on 4770A and it is configured by adding two bioradial ring radiator 2404H for high region. Two 38cm cone type Woofer 2226H are carried in low-pass. In addition, a horn type unit combining a flat front / bi-radial horn 2380 A with a compression driver 2445 J using a 10 cm diameter titanium diaphragm is carried in the mid range. The wedge type is adopted as the enclosure, and it is possible to configure the cluster side by side. In this case, the coverage spreads by 30 degrees horizontally for each increment. Tri-amp drive system is adopted. In addition, by inserting the mid-to-high range crossover network N4751AP as an option, it is possible to change to a bi-amp drive divided into a low range and a mid to high range. method 3 way · 5 speaker · bass ref system unit For low-pass: 38 cm cone type (2226 H) x 2 For mid range: horn type (2445 J + 2380 A) For high region: horn type (2404 H) x 2 Playback frequency band 30 Hz to 20 kHz - 10 dB Output sound pressure level L: M: H: 101 dB / 2.83 V / m 133 dB (maximum) 112 dB / 2.83 V / m 133 dB (maximum) 105 dB / 2.83 V / m 124 dB (maximum) Allowable input L: 1,200 W (AES Standard 50 - 500 Hz) M: 150 W (continuous program) H: 40 W (continuous program) Crossover frequency 800 Hz, 7 kHz (recommended value) Directional characteristics (-6 dB) H 90 ° x V 40 ° Impedance L: 4 Ω M: 16 Ω H: 16 Ω Input / output connector Neutrik NL 8 MPR x 2 External dimensions Width 750 x height 1,250 x depth 533 mm weight 115 kg

[SpiritoBono]

Tanta roba.

Sono toste e poco "adatte" ad ambienti domestici, ma come ogni JBL di razza se curi il progetto nel suo insieme ottieni qualcosa di unico