The JBL 100 Hour Torture Test!
Put on a set of industrial hearing protectors, step through three sound proof doors and you’re in the JBL Power Test room. All JBL Professional speaker designs, including JRX100, come here for a brutal 100 hour torture test. When we specify a speaker as having 250 watts continuous power capacity, that means samples have survived a 100 hour test with IEC noise at 250 watts. And that’s 250 watts average – the signal we use actually has 6 dB (1000 watt) peaks. If the systems don’t pass, we change the design and start the tests again. No one in the industry uses a more demanding standard.
Hardware :
JRX100 Series doesn’t scrimp on the hardware either. All the JRX models use tough, non-resonant all-steel handles with big, beefy bars. And the entire baffle (not just the woofer) is protected by an 18 gauge steel grille.
Enclosure Construction :
Competitive systems typically use particleboard construction and rely entirely on glue to hold it together. For JRX100, we selected a more rugged and acoustically superior 3/4” MDF material for the enclosures. And to make sure they stay together, we constructed them with advanced adhesives and closely spaced mechanical fasteners. Not only are the cabinets rugged, but the denser enclosure walls are more rigid, delivering better low end as a result.
JBL Drivers :
All woofers and compression drivers used in JRX100 are manufactured in Northridge, California by JBL Professional.
Progressive Transition Waveguide :
Just one example of JBL’s innovation is the PT™ Waveguide design. For decades, horn designers were faced with trade-offs between well controlled coverage, low-distortion, and good frequency response. JBL developed proprietary algorithms which give our PT Waveguides the best performance in all three areas.
SonicGuard™ :
Feedback, dropped microphones, pushing the amps into clipping – all these things can quickly destroy even the best high-frequency drivers. That’s why JBL JRX100 speakers include SonicGuard™ protection. SonicGuard circuitry absorbs excess energy without interrupting the performance. No circuit breakers to reset, no fuses to replace, and no “poly-switches” to degrade sound quality.
JRX115i Installation Version :
The JRX115i is an installation version of the portable JRX115 model. Designed for suspension where ground stacking or pole mounting is impractical or undesirable. Handles, feet and pole-mount socket have been removed. Three internal metal braces, threaded to receive M10 bolts have been added. To complete the package, three forged M10 eyebolts are provided. All other performance characteristics are identical to their portable counterparts.
JBL JRX115i Features :
- JBL 15 inch low frequency driver with a 64 mm (2.5 in) diameter edgewound ribbon voice coil which provides more cross-sectional wire area in the voice coil gap than # round wire designs, for greater efficiency and power handling.
- Ferro-fluid cooled compression driver with titanium diaphragm improves high frequency performance as well as system reliability.
- The advanced network topology crossover design shapes the frequency response to deliver coherent summation in the crossover region.
- High-voltage capacitors and inductors with massive cores and heavy gauge wire enable the crossover network to handle high power without saturating.
- Progressive Transitionª highfrequency waveguide provides superior coverage control, reduced distortion, and smoother frequency response.
- The rugged, acoustically superior enclosure is constructed from 19 mm (.75 in) MDF (Medium Density Fiberboard) using advanced adhesives and mechanical fastener technology for extreme durability and improved low-frequency performance.
- SonicGuardª protects the highfrequency driver from excess power without interrupting the performance.
- Attractive 18-gauge perforated, steel grille protects components from damage.
- Cabinet is fitted with three M10 threaded suspension points.
- Rigging hardware kit containing three 10 mm forged shoulder eyebolts with washers is included.
