BOSE 502B ลำโพงซับเบส  450-Watt Acoustimass Subwoofer ,Panaray® 502® B Bass Loudspeaker
ตู้เบส 502®B ให้เสียงเบสหรือเสียงทุ้มสำหรับเสียงเพลงและเสียงดนตรี ใช้งานร่วมกับเครื่องควบคุมลำโพงรุ่น Panaray® System Digital Controller II หรือ 502®B EQ Card ตอบสนองความถี่ 55 Hz + 150 Hz ใช้งานได้กับเครื่องขยายเสียง ขนาด 450-1200 วัตต์ ที่ 8 โอห์ม ขอแนะนำให้ใช้ร่วมกับลำโพง Bose® รุ่น 802®,402®,502®A,MA12
The Panaray® 502® B bass loudspeaker delivers low-frequency response down to 55 Hz for installations requiring additional bass extension. Bose® patented Acoustimass® speaker technology launches low-frequency sound on two air masses. This filters out audible distortion, making the low-frequency sound non-localizable. As a result, the enclosure can be placed where it is most convenient—even hidden out of sight.
With a frequency response of 55 Hz to 150 Hz, the Panaray 502 B bass loudspeaker is engineered to match acoustically with the Panaray 502 A speaker systems.

Designed for applications requiring portability.

Works with the Bose 402, 502, and 802 speakers (requires optional system controller) to provide deep bass sound. Operates only below 150Hz. Features a 12" speaker with a cast aluminum basket and 4" voice coil. Recessed side handles, scratch-resistant vinyl covering, and shock-resistant edge and corner protectors for added durability. Recommended power: 450-900W. Dimensions: 14-1/2"W x 32"H x 16"D. 90 lb. 5-year transferable warranty.

The Bose Panaray 502B Acoustimass Bass Module | Gray is a low-frequency loudspeaker designed for indoor permanent installations. Originally designed as the companion low-frequency unit to the Panaray 502 A mid/high-frequency loudspeaker, the 502 B loudspeaker features patented Acoustimass®speaker technology to deliver low-frequency down to 45 Hz.

Key Features

• Single 12" (305 mm) woofer with Bose®patented Acoustimass®speaker technology, which reduces audible distortion and delivers nonlocalized bass
• 450 W long-term and 1800 W peak power rating
• Integrated suspension inserts allow easy permanent installations with optional rigging accessories
• Engineered to match acoustically with the Panaray 502 A speaker systems

Technical Specs

Frequency Response                  (+/-3 dB)1 50 Hz - 140 Hz

Frequency Range                        (-10 dB)1 45 Hz - 160 Hz

Nominal Dispersion                     Omni-directional below 200 Hz

Loudspeaker EQ Required

Overload Protection                    7-ampre AGC or 3AG (Littlefuse)

Long-Term Power Handling            450 W (1800 W peak)

Sensitivity (SPL / 1 W @ 1 m)      90 dB SPL

Maximum SPL                            @ 1 m4 116 dB SPL (122 dB SPL peak)

Nominal Impedance                           8 Ω

Transducers                               Driver Compliment 12" (305 mm) woofer

Physical

Enclosure Vinyl-wrapped, high-density wood composite

Environmental Indoor use only

Connectors Two (2) parallel-wired barrier strips

Suspension / Mounting Eight (8) 8 mm threaded inserts (4 top, 4 bottom), 20 mm depth

Dimensions 31.0" H x 14.0" W x 15.5" D (787 mm x 356 mm x 394 mm)

Net Weight 85 lb (38.6 kg)