Lb1-uw06x-x is an affordable 6 W universal speaker for indoor applications with or without volume control. The keyhole on the back panel facilitates quick and simple wall installation. The front baffle has a certain Angle tilt, which can make the listening area get better sound. The speakers come in black or white. The MDF (medium density fiberboard) housing has a solid base function and is covered with durable and easy-to-clean vinyl film, providing both white and black styles. The front panel is made of ABS material and is covered with fine color matching speakers. The front baffle has a certain Angle tilt, which can improve the high frequency playback effect in the listening area. The speaker can be with or without a volume control. All Bosch speakers are certified to meet IEC 268-5 power handling capacity (PHC) standards and can operate continuously for 100 hours at rated power. Bosch has also conducted simulated acoustic feedback exposure tests to ensure they can withstand twice the rated power in a short period of time. This ensures high reliability in extreme conditions, improves customer satisfaction, extends service life, and significantly reduces the chance of failure or performance degradation. Three key holes in the panel after installation/configuration in accordance with EN 60065 standard allow users to install walls easily and quickly. The rear panel is equipped with convenient and easy to use four-way pole push - in junction box, suitable for field connection. The junction box provides a power tap connection for the 100 V matching transformer in the sound column. This allows the user to select the rated full power, half power, or quarter power radiation (increase by 3 dB). 1 lb1-uw06-x size (unit: Mm), with a volume control (1) ~ Ø LB1 - UW06 ~ Ø LB1 - UW06V - x - x diagram and circuit diagram level frequency response directed graph (pink noise is used to measure the vertical directivity diagram (using the pink noise measurement) technical specifications Electrical specifications * maximum power 9 W power rating orange-red / 1.5 W and 6 W / 1 W of sound pressure level (99 dB / 1 kHz, 1 m) 91 dB (SPL) 6 W / 1 W of sound pressure level (4 kHz, 1 m) 100 dB / 92 dB (SPL) effective frequency range of 180 Hz and 20 kHz (10 dB) open Angle 1 kHz / 4 kHz (6 dB) level 165 ° 95 ° 158 ° vertically / 95 ° rated input voltage 100 V rated impedance of 1667 ohms interface 4 needle push type terminal box * technical performance data in accordance with IEC 60268-5 standard mechanical size (high x width x deep) 240 x151x141/119 mm (9.4 x 9.4 x 5.6/4.7 of an inch) weight 0.9 kg (2 lb) of color (L) (D) black or white boxes/veil (D) comply with the RAL 9004 standard cabinets/veil (L) RAL 9010 / RAL 7044 standard working temperature environment specification - 25 DHS to 55 DHS C + C (13 DHS F to + 131