LA-221
Dual 21" ultra-low frequency loudspeaker
LA-221 is a dual 21-inch loaded low-frequency speaker that achieves ideal bass reproduction while maintaining clear and impactful low-frequency effects. It can be combined with mid-to-high frequency speakers to form a full-range system with ideal sound effects.
Application scope: Sound reinforcement for large bars, clubs, large halls, and live performances.
frequency response 32Hz - 150Hz (±3 dB)  28Hz ~ 200Hz (-10dB )
sound pressure level 140.6 dB，146.6dB Peak
Unit specification 2×21" (135mm voice coil)
Rated impedance: LF1：4Ω；LF2：4Ω
Speaker power (Program power): LF1:3400W;  LF2:3400W;
Box size (W x H x D) 1200mm×600mm×950mm
Net weight 134.5Kg
connector 2×8-pin NL4MP speaker sockets x2
connection method LF1：1+1- ；LF2：2+2-
Box material 24mm Grade A multi-layer birch plywood
surface treatment Black high-strength polyurea paint
Grid net 2mm black perforated mesh + splash-proof sound-permeable mesh


Contact us
86-020-34516748
Email: rjaudio@163.com
Contact
RJ (Ruijie) professional audio brand was founded in early 2000, mainly targeting large-scale touring performances and fixed installation markets. All components of our audio system are customized and undergo a rigorous selection process to ensure that all equipment has excellent quality. RJ (Ruijie) products are designed and manufactured based on the real needs and problems we have faced in the professional audio field for many years. Therefore, our system is designed to enable our customers to provide high-quality sound while saving installation time, labor, storage space, and transportation space.

RJ (Ruijie) professional audio system has won the recognition of numerous audio engineers and system engineers, as well as audio designers for touring and fixed installations. At present, we have well-known cases and partners in both Europe and Asia, and their recognition and number are constantly increasing.
RJ-audio All Rights Reserved