ページ1に含まれる内容の要旨
74947_JBL_Ctrl30 6/28/07 9:28 AM Page 1
®
Three-Way High Output
Control 30 Indoor/Outdoor Monitor Speaker
Professional Series
Key Features:
Extended bandwidth, extremely smooth
frequency response.
Fully outdoor-capable design, featuring
WeatherMax™ multi-layer grille.
120° x 110° HF coverage.
150 Watt transformer for 70V or 100V
lines, with 4Ω thru.
®
SonicGuard overload protection.
®
250 mm (10 in) fiberglass/Kevlar cone LF
woofer, with neodymium magnet coaxial
125 mm (5 in) anodi
ページ2に含まれる内容の要旨
74947_JBL_Ctrl30 6/28/07 9:28 AM Page 2 Control 30 Three-Way High Output Indoor/Outdoor Monitor Speaker 100 316 Frequency Response, on axis in half-space (2, dotted line) and full space (4, solid line) at thru (4Ω ) setting, 100 90 Input Impedance. 80 10 70 60 1 20 100 1000 10000 20000 Frequency (Hz) 360 Beamwidth vs. Frequency 100 V Beamwidth H Beamwidth 10 20 20000 100 1000 10000 Frequency (Hz) 106 [4.17] Directivity Index, Q Directivity Index (dB) 20 100 128 [5.0] 109 [4.29] 87 10 10
ページ3に含まれる内容の要旨
74947_JBL_Ctrl30 6/28/07 9:28 AM Page 3 Horizontal 1/3 Octave Polars Architectural Specifications: The loudspeaker shall consist of a 250 mm (10 in) low frequency transducer, a coaxial 125 mm (5 in) mid frequency transducer with a 25 mm (1 in) compression driver, and frequency dividing network. The low frequency driver’s voice coil shall be 50 mm (2 in) in diameter and the mid frequency driver’s voice coil shall be 25 mm (1 in) in diameter. Performance specifications of a typical unit shall be
ページ4に含まれる内容の要旨
74947_JBL_Ctrl30 6/28/07 9:28 AM Page 4 Control 30 Three-Way High Output Indoor/Outdoor Monitor Speaker Vertical 1/3 Octave Polars High-Pass Frequency Recommendations The line-matching transformer in the Control 30 has been designed to minimize saturation; however, it is rec- ommended that the system be high-passed to prevent very low-frequency content from overloading the trans- former and/or the driving amplifier at high signal levels. The high-pass requirements vary according to the tap s
