{"product_id":"radio-design-labs-d-tpa1a-3-5-w-audio-power-amplifier-white","title":"RDL D-TPA1A 3.5 Watt Audio Power Amplifier on Decora Plate (White)","description":"\u003cp\u003e3.5 W Audio Power Amplifier on Decora Wall Plate - White\/Gray Finish\u003c\/p\u003e\n\u003cp\u003eThe -TPA1A modules are two pair audio amplifier modules compatible with RDL Format A twisted pair products. Each -TPA1A receives stereo audio and 24 Vdc power through a rear-panel RJ45 jack. The left and right audio signals received on pairs B and C of the twisted pair cable are summed to mono and amplified. The amplified output level is set by an internal VCA which is controlled by a front-panel volume control. The VCA attenuator provides years of scratch-free gain adjustment.\u003c\/p\u003e\n\u003cp\u003eThe -TPA1A circuits are all designed for low power consumption. 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. When the user reduces the audio level to minimum, the class D output stage is switched off. This sleep mode remains active until the user turns up the output level.\u003c\/p\u003e\n\u003cp\u003eThe output drives either a 4 Ohm or 8 Ohm speaker. The speaker cable connects to the module using a detachable terminal block.\u003c\/p\u003e\n\u003cp\u003eThe front panel does not include any illuminated indicators, making the -TPA1A ideally suited to installation in dark rooms or areas. Installation is simple and quick, requiring only the connection of the speaker leads and the twisted pair RJ45.\u003c\/p\u003e\n\u003cp\u003eThe -TPA1A may be fed and powered from any RDL Format-A sender, and is ideal in hospitality installations fed from a sender connected to a TV monitor (for example: FP-TPS4A Audio Sender from TV with fixed audio output level).\u003c\/p\u003e\n\u003cp\u003eUse the -TPA1A wherever a single speaker user-adjustable wall mounted amplifier is needed. Combine the amplifier with other RDL Format-A products for a cost-effective, high-performance audio system.\u003c\/p\u003e\n\u003ch2\u003eFeatures:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e3.5 Watt RMS Audio Amplifier into 8 Ohms\u003c\/li\u003e\n\u003cli\u003e6.5 Watt RMS Audio Amplifier into 4 Ohms\u003c\/li\u003e\n\u003cli\u003eOutput Drives 4 or 8 Ohm Speaker\u003c\/li\u003e\n\u003cli\u003eSetting Level to Minimum Activates Energy-Saving Sleep Mode\u003c\/li\u003e\n\u003cli\u003eHigh-Efficiency Class D Operation\u003c\/li\u003e\n\u003cli\u003eVCA Level Adjustment for Scratch-Free Long Life\u003c\/li\u003e\n\u003cli\u003eInput and Power Connection on RJ45\u003c\/li\u003e\n\u003cli\u003eConnects to Format-A Sender using Twisted-Pair Cable\u003c\/li\u003e\n\u003cli\u003ePowered from RDL Twisted Pair Format-A Sender\u003c\/li\u003e\n\u003cli\u003eSpeaker Output Connection on Detachable Terminal Block\u003c\/li\u003e\n\u003cli\u003eUltra-Compact All Metal Construction\u003c\/li\u003e\n\u003cli\u003eThermal and Short-Circuit Protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eInput: RDL Format-A\u003c\/li\u003e\n\u003cli\u003eInput Connector: RJ45\u003c\/li\u003e\n\u003cli\u003eGain Adjustment: Single turn audio taper, VCA attenuator\u003c\/li\u003e\n\u003cli\u003eFrequency Response: 50 Hz to 20 kHz (+\/- 1.5 dB)\u003c\/li\u003e\n\u003cli\u003eTHD+N: \u0026lt; 0.1% (@ 1 kHz, 1 W)\u003c\/li\u003e\n\u003cli\u003eNoise: \u0026lt;-70 dB (below 1 W RMS)\u003c\/li\u003e\n\u003cli\u003eCMRR: \u0026gt; 60 dB (50 Hz to 120 Hz)\u003c\/li\u003e\n\u003cli\u003eOutput Power: 3.5 W RMS (max., into 8 Ohms); 6.5 W RMS (max., into 4 Ohms)\u003c\/li\u003e\n\u003cli\u003ePower Consumption: 45 mA (idle), 95 mA (1 W into 8 Ohms), 150 mA (1 W into 4 Ohms), 215 mA (3.5 W into 8 Ohms)\u003c\/li\u003e\n\u003cli\u003eSleep Mode Power Consumption: \u0026lt; 0.3 W\u003c\/li\u003e\n\u003cli\u003eSleep Mode Enable: Active at audio gain \u0026lt;-60 dB\u003c\/li\u003e\n\u003cli\u003eAmbient Operating Environment: 0 C to 40 C Maximum; 20 C Recommended\u003c\/li\u003e\n\u003cli\u003eDimensions: Height: 4.13 in. 10.49 cm; Width: 1.7 in. 4.32 cm; Depth: 2.15 in. 5.47 cm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RDL","offers":[{"title":"Default Title","offer_id":42494256349362,"sku":"RDL DTPA1A","price":230.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0614\/8122\/2322\/products\/32744_sq.jpg?v=1753125367","url":"https:\/\/www.performanceaudio.com\/products\/radio-design-labs-d-tpa1a-3-5-w-audio-power-amplifier-white","provider":"Performance Audio","version":"1.0","type":"link"}