Speaker Building 3-2 Dayton Audio SPA250DSP and SPA500DSP Subwoofer Plate Amplifiers with DSP What if you could wring every last drop of performance from your subwoofer, whether the cabinet is the “optimum” size or not? Who wouldn’t want that? With Digital Signal Processing (DSP) you can. These plate amps allow you to optimize the output of your woofer in your cabinet, rather than trying to build the cabinet to suit the driver. You no longer have to sacrifice low frequency for SPL, or box size for low frequency. You can adjust PEQs, HPF, LPF, Phase, Limiting, and Mains Delay, all according to your specific taste and needs. All the power is in your hands. Various parameters can be easily adjusted using the LCD display screen, or (for the deepest level of management over all functions) via USB connection to your computer using the included software package! Volume/Phase 5-Band Parametric Equalizer #300-8011 • DSP functions include: 7 PEQ bands, LPF, phase, subsonic filter, limiter, mains delay, and HPF • Single-knob control panel with high-contrast LCD display and status LEDs • Fast, intuitive PC-based GUI software enables full access to the DSP functions • Efficient Class D output topology ensures high-impact low frequency performance • Includes both balanced and unbalanced line level inputs and outputs The Dayton Audio SPA250DSP and SPA500DSP digitally processed plate amplifiers offer an elite level of control over your entire system (i.e. subwoofer and mains). These unique amplifiers allow you to adjust your system's low frequency performance through the simple on-board single knob control panel, or more advanced adjustments with our intuitive user friendly PC based GUI. Specifications: • Power output: 250/500 watts RMS into 4 ohms, THD+N <0.1% • Signal to noise ratio: 97.9 dB (A-weighted) • Power requirements: 110~120/220~240 VAC selectable, 50/60 Hz • Amplifier dimensions: 10.25" H x 7.25" W x 2.125" D; Amplifier cutout: 9.25" H x 6.25" W. #300-8012 500 Watts #300-8010 250 Watts Dayton Audio SPA-F Subwoofer Plate Amplifier Surface Mounting Frame for SPA250DSP and SPA500DSP • Structurally sound 16 gauge steel provides a rigid mounting point • Concealed mounting for clean and neat installation Speaker Building Plate Amplifiers 3 Section Fine tune your systems low end performance with DSP Part # Model Power Output 4Ω RMS (watts) Crossover Dimensions (H x W x D) 300-782 SA25 25 60 to 180 Hz, 12 dB 6-1/4" x 6-1/4" x 2-1/2" 300-784 SA70 70 40 to 180 Hz, 12 dB 8-11/16" x 7-1/2" x 3-1/2" 300-802 SA100 100 40 to 180 Hz, 12 dB 8-11/16" x 7-1/2" x 4-3/4" 300-803 SPA250 252 40 to 180 Hz, 24 dB 9-13/16" x 9-13/16" x 5" 300-807 SPA500 540 30 to 200 Hz, 24 dB 11-15/16" x 11-15/16" x 5-1/4" 300-809 SPA1000 950 30 to 200 Hz, 24 dB 11-15/16" x 11-15/16" x 5-1/4" Don’t be afraid…crank it up!! Sophisticated “soft clip” feature and optical limiting circuits monitor input levels and gently protect the amp and speaker from damage. This allows your subwoofer system to handle extreme input peaks such as movie explosions without distortion or damage to the subwoofer driver or the amplifier itself. 25 Watt Specifications: • Measured power output: 215 watts RMS into 8 ohms @ 0.1% THD, 25 watts RMS into 4 ohms @ 0.2% THD • Signal to noise ratio: 90 dB (A-weighted). 70 Watt Specifications: • Measured power output: 45 watts RMS into 8 ohms @ 0.1% THD, 70 watts RMS into 4 ohms @ 0.2% THD • Signal to noise ratio: 90 dB (A-weighted). 100 Watt Specifications: • Measured power output: 75 watts RMS into 8 ohms @ 0.1% THD, 100 watts RMS into 4 ohms @ 0.2% THD • Signal to noise ratio: 90 dB (A-weighted) . 250 Watt Specifications: • Measured power output: 156 watts RMS into 8 ohms @ 0.1% THD, 252 watts RMS into 4 ohms @ < 1.0% THD • Signal to noise ratio: 90 dB (A-weighted). 500 Watt Specifications: • Measured power output: 273 watts RMS into 8 ohms @ 0.06% THD, 540 watts RMS into 4 ohms @ 0.15% THD • Signal to noise ratio: 98 dB (A-weighted). 1000 Watt Specifications: • Measured power output: 512 watts RMS into 8 ohms @ 0.09% THD, 1,024 watts RMS into 4 ohms @ 0.15% THD • Signal to noise ratio: 98 dB (A-weighted). Discover what increased definition and dynamic range can do for your subwoofer system Dayton Audio Subwoofer Plate Amplifiers • 6 different plate amplifiers to fit your exact application • Built-in adjustable crossovers for custom sound blending with other speakers • SPA250 has a switchable 6 dB of bass boost centered at 35 Hz • SA25, SA70, SA100, and SPA250 feature speaker-level inputs • SPA500 and SPA1000 are built with parametric EQs for optimizing output #300-809 Additional plate amplifier located on page 3-42.
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