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Description:
By combining years of innovation, invention and insight from HARMAN brands, JBL Commercial Series Amplifiers (CSA) go well beyond the expected in generating powerful sound. From the switch-mode universal power supply to the efficient performance of Crown’s DriveCore Technology, we continue to set new standards in commercial power amplifier technology. Simple to configure, the Commercial Series amp provides a DriveCore-based sound solution. This replaces up to 500 parts with one small chip, significantly reducing the part count and increasing reliability while maintaining superb performance. Supporting 70V and 100V installations out of the box, Commercial Series amps include RJ45 connectors for use with JBL CSR-V in-wall volume controls. Its universal power supply allows every Commercial Series amp to accept AC voltages from 100 to 240 VAC, 50/60 Hz. And with HARMAN’s GreenEdge environmental initiative, Commercial Series amps quickly pay for themselves in energy savings.
Features:
1 output channel with 40W
Built-in 70V and 100V
Fanless, space-saving 1U design
Sleep mode disable function
Energy-efficient amplifier
Sleek industrial look with illuminated rings making knobs easy to see and use
Supports the JBL CSR-V wall controller via Ethernet cable
Universal power supply
Energy Star Certified
Specifications:
Power Output: 40W
Output Channels: 1
Input Sensitivity: 1.4Vrms for 8-ohms
Phantom Power: 27VDC
AC Line Voltage: 100 - 240V, 50/60 Hz
Input Impedance: 20K ohms/50K ohms
Dimensions: 1.7" x 8.6" x 11.9" (43.3mm x 218.5mm x 303.4mm)
Included Accessories: Rack mounting kit
Notable mostly for being a commercial 70v piece rather than a typical home-audio listing, this lands right on the money. At US$240, it sits exactly at the database median of US$240, well above the US$152 25th percentile but below the US$297 75th percentile, so this reads as fair pricing, not a bargain or an ask that’s stretching.
The upside here is utility: JBL’s commercial 70v gear is built for straightforward, dependable distributed sound, and buyers value them for robust output, easy integration, and long service life. If it’s complete and truly working, a clean used example at US$240 is a sensible buy; just confirm the taps, transformers, connectors, and any mounting hardware, since those details matter more than cosmetics on this type of piece.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
JBL traces its roots to 1946, when pioneering audio engineer James Bullough Lansing founded the company in Los Angeles, California, initially as James B. Lansing Sound, Incorporated. A veteran of loudspeaker design from earlier ventures like the Lansing Manufacturing Company and collaborations on Hollywood's first practical cinema systems, Lansing infused JBL with his relentless pursuit of acoustic clarity and fidelity. Though he passed away in 1949 amid financial strains, the brand endured under new leadership, accelerating in 1969 with acquisition by Harman International—now under Samsung—fueling global expansion and innovation.
JBL excels across professional and consumer audio realms, renowned for its loudspeakers that dominate studios, touring rigs, cinemas, and home setups. Iconic models like the D-130 woofer, Paragon stereophonic system, and L-100 Century defined eras of high-output sound, while modern lines span portable Bluetooth speakers, wireless headphones, soundbars, and pro monitors. The brand prioritizes robust transducers, advanced horns, and diamond-surround tech over niche components like turntables, DACs, or cables.
Positioned as a mid-tier powerhouse with pro-grade heritage, JBL commands respect among discerning buyers for delivering punchy, reliable performance at accessible prices, bridging live-event energy and home listening without high-end esoterica. Its vintage icons draw collectors, yet contemporary ubiquity in arenas and everyday gear cements market dominance for those valuing scale and excitement over boutique refinement.
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