The triple 15" Yorkville Sound SA315S is a professional, powered portable PA subwoofer from the Synergy Array Series system designed to be used as a dedicated subwoofer for the SA153 full-range top or used in conjunction with the SA153 and the SA221S powered subwoofer to create a scalable point-source sound system well suited for professional sound reinforcement companies, rental houses, touring bands, musicians, festivals, concerts, mobile DJs, and other sound providers.
Yorkville has invested a lot of time and research into developing and building their own amplifiers, customizing other raw speaker manufacture products and using sophisticated DSP to optimize performance/protection, resulting in remarkable peak power performance. The S315S provides a punchy transient, followed by an enveloping sustained bass tone, making it a great addition to any setup.
The rear panel provides a simplified set of controls for integrating the subwoofer into any environment. There are indicator LEDs for power, activity, input clip, X-Max limiting, and VC-Limiting. The integrated DSP provides processing to prevent over-excursion (X-Max), voice coil overheating (VC thermal) and clipping. With the use of IIR filters for crossover and equalization, the Synergy system provides clean and accurate audio reproduction.
A small delay is added to time align with the SA153 top box, while the X-Max limiter and the VC thermal limiter are both frequency sensitive and calibrated to match the characteristics of the driver and cabinet system. The Sub Level control knob attenuates or boosts the subwoofer's output, while a dedicated Average Power Limit knob (100%, 75%, and 50%) can be advanced to limit the power draw in cases where there is less than ample power available. This is a huge benefit for touring and mobile applications, where the available power changes from night to night. By limiting the average power, you can ensure that you won't trip that 15-amp breaker that happens to be sharing power with the ice machine.
The SA315S has a single XLR input with two parallel XLR outputs for connecting a SA153 speaker or additional SA315S or SA221S subwoofers. Up to 20 subwoofers/tops can be daisy-chained without signal loss (with balanced cables). The rugged enclosure is made from 15mm Birch plywood with a tough speaker paint coating. The subwoofer features a rail and lockbar rigging system makes flying the system a safe and simple affair. The lockbar also attaches to the cabinet dolly for safe and easy transport. Interlocking UHMW feet and cups are also on the top and bottom to ensure stability when stacking. A power cable is included.
- Bass-reflex powered subwoofer: 6000W (program), 13,000W (peak)
- Triple 15" ceramic woofers with 3" voice coil
- Fully scalable for any size event
- Designed for use with Synergy SA153 full-range speaker and SA221S subwoofer
- Exceptionally high output and deep bass
- Large capacitor bank ensures powerful transients with long sustained bass tones without power sag. Bass performance remains strong throughout a long signal duration.
- Measured max SPL (C-weighted, max hold): 130 dB continuous, 136 dB peak
- Frequency response (±3 dB): 31 to 100 Hz
- Crossover frequency (Hz): 100 Hz low-pass
- Constructed of high-strength multiply birch plywood
- DSP uses IIR filters for crossover and equalization
- DSP platform provides processing to prevent over-excursion (X-Max), voice coil overheating (VC thermal), and clipping
- Reduces power operation on limited availability
- Full power transients will be allowed through, but limits if the average power is excessive
- Works by advancing the limiter that limits the voice coil temperature
- Average power limit control
- 100%: power is limited only by the voice coil temperature
- 75%: music with deep continuous bass will be limited but many types of music will not
- 50%: only certain types of music will not be limited, primarily music without deep bass or where the bass is unprocessed. Voice applications typically will not be limited in the 50% position
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