Radio Design Labs DB-PSP1

The D SERIES-PSP1 is a compact active loudspeaker that delivers rich, detailed sound in Decora-compatible wall or chassis mounts. The input accepts either a -10 dBV unbalanced or a +4 dBu balanced signal on the rear-panel detachable terminal block. Amplification is provided by a high-efficiency Class D power stage with audio filtering tailored for crisp, pleasant audio clarity. The high-efficiency Class D output stage produces negligible heat for all levels of expected voice or music modulation. The amplified output level is controlled by a front-panel volume control. The PSP1 includes an analog compressor/limiter that makes higher average sound output levels possible without clipping.The driver is constructed of materials found in premium larger speakers. The unique steel enclosure provides full baffling in a tightly sealed rigid structure. This produces sonic presence within an extended frequency range expected from larger speakers. Internal filtering rolls off out-of-band frequencies to reduce distortion and increase peak power capability. Dispersion covers a spherical area of nearly 180 degrees with the speaker mounted in a wall. Models are available with grills in black (DB-PSP1), white (D-PSP1), gray (DG-PSP1) or stainless steel (DS-PSP1).Main Features:Exceptional Audio Quality for Ultra-Compact Size2 Watt RMS Audio AmplifierCompressor/Limiter Prevents ClippingBalanced +4 dBu Input on the Rear PanelUnbalanced -10 dBV input on the Rear PanelFront-Panel Gain AdjustmentAcoustically Optimized Decora EnclosureFidelity Comparable to Larger DriversHemispherical Dispersion Mounted In Wall or Flat SurfaceSpecifications:Inputs (2): 30 k balanced or 10 k unbalancedInput Level: +4 dBu nominal (Balanced); -10 dBV nominal (Unbalanced)Minimum Input Level: -18 dBu (Balanced, Max. gain); -19 dBV (Unbalanced, Max. gain)Maximum Input Level: +22 dBuGain Adjustment: Single-turn audio taper (Front-panel)Maximum SPL: 81 dBFrequency Range: 150 Hz to 20 kHz, nominalCMRR: > 50 dB (50 Hz to 120 Hz)Power Requirement: 24 Vdc @ 55 mA (Idle); 100 mA (maximum), Ground-referencedAmbient Operating Environment: 0 C to 40 C Maximum; 20 C RecommendedDimensions: Height: 4.12 in. 10.46 cm; Width: 1.72 in. 4.37 cm; Depth: 2.64 in. 6.7 cmPackage Type: Cardboard BoxPackage Dimensions: 3.625 x 4.625 x 2.125 in.Shipping Weight: .573 lbs.WEEE weight: .43 lbs.Tariff code: 8518.21.0000