SPA500 500W Subwoofer Plate Amplifier
High power Class AB output stage for clean, controlled o
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One of the most technologically advanced subwoofer amplifiers on the market today! The Dayton Audio SPA500 subwoofer amplifier is based on a state-of-the-art Class G circuit topology that combines the proven high power, high fidelity characteristics of a Class AB amplifier with a patented tracking down converter power supply to achieve an operating efficiency up to 86%. You get the efficiency of a Class D amplifier without compromising audio quality and reliability. The Class AB output stage provides the clean and low-distortion sound that audiophiles demand, without any of the instability problems that plague other high-efficiency amplifier designs.
This American-designed and engineered amplifier uses patented circuitry that continuously tracks the input signal to modulate or control the voltage available to the output stage. This "tracking" capability delivers the exact amount of power based on demand instead of constantly keeping it in reserve, so the output stage only draws the amount of power that is required at any given time. Less energy is wasted as heat, and more power is available for the subwoofer driver. With its enhanced thermal management, the SPA500 is an upgrade over previous models—making it a nearly bulletproof amplifier choice for today's demanding HT audio and music playback applications.
Cutout dimensions: 10" W x 10" H.
• Patented tracking downconverter power supply for high efficiency
• Toroidal power supply transformer
• Low frequency parametric EQ allows you to boost or cut to custom-tailor sound
• Advanced soft clip circuitry improves headroom and protects woofers
• OTC TM (Optimized Thermal Circuit) protects amplifier from potential heat damage
• Hercules heat sinks dissipate and control heat for extreme reliability
|Unit of Measure||Each|
|Warranty - Parts||5 Years|
|Warranty - Labor||5 Years|
|Product Shipping Weight (lbs.)||20.0000|
|Amplifier Type||Subwoofer Plate Amplifiers|
|Power Output||273 Watts* into 8 ohms, 540 Watts* into 4 ohms|
|Power Output (RMS @ 70V) Range||--|
|Output Types||4 ohms, 8 ohms|
|Input Impedance||12K ohms|
|Signal-to-Noise Ratio||98 dB A-weighted|
|THD @ Rated Power||0.92%|
|Parametric EQ||Frequency: 18 Hz – 80 Hz Bandwidth: 0.1 – 1 Q Level: -14.5dB – +6dB|
|Phase Adjustment||0° (NOR) or 180° (REV)|
|Low Pass Adjustment||30 Hz – 200 Hz|
|Frequency Response||30 Hz – 200 Hz|
|Voltage Requirement||115/230 VAC, 50 Hz/60 Hz|
|Stand-by Power Rating||115V 24W;230V 18.4W|
|Special Features||Parametric EQPatented tracking downconverterAdvanced soft clip circuitryClass AB output stageVariable low pass filter|
Plate AmplifierBy: DEAN GALE on 4 November 2014Sensational speed, clarity musical and real grunt with movies. The dual purpose is a real bonus and my sub now intergrates with my Magneplanar's like never before.