{"product_id":"rdl-ds-hpa3c","title":"RDL DS-HPA3C","description":"\u003cp\u003e(Custom Labeled)\u003c\/p\u003e\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThe D SERIES-HPA3 is a high efficiency 3.5 W power amplifier with one line input, an amplified output to drive a 4 or 8 ohm speaker and a separate headphone amplifier. The -HPA3 features a balanced line level input that may be connected unbalanced. The gain range will accommodate standard unbalanced levels as well as professional balanced levels. The amplified output levels are controlled by a front-panel volume control.\u003c\/p\u003e\u003cp\u003eThe amplifier features a Mini-Jack headphone output on the front panel. When a headset is plugged in, the power amplifier may be switched off. Two recessed slide switches located on the top of the rear enclosure are set prior to mounting the module. One switch is provided for setting the input sensitivity. The mute switch determines whether the power amplifier operates when headphones are plugged in.\u003c\/p\u003e\u003cp\u003eAmplification for the speaker output 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.\u003c\/p\u003e\u003cp\u003eThe D SERIES-HPA3 is designed to be mounted in a wall box. The front panel does not include any illuminated indicators, making the -HPA3 ideally suited to installation in dark rooms or areas. Wiring is connected through a rear-panel detachable terminal block. Module operation is from a 24 Vdc ground-referenced power supply.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eWall-Mounted Amplifier with 2 Outputs\u003c\/li\u003e\n\u003cli\u003eBalanced Input on the Rear Panel\u003c\/li\u003e\n\u003cli\u003eSpeaker Output on the Rear Panel\u003c\/li\u003e\n\u003cli\u003eMini-Jack Headphone Output on the Front Panel\u003c\/li\u003e\n\u003cli\u003eSetting to Turn Off Power Amplifier upon Headphone Connection\u003c\/li\u003e\n\u003cli\u003eAmplifier Muting Using Solid-State Switching\u003c\/li\u003e\n\u003cli\u003eSingle Gain Adjustment for the Speaker and Headphone Amplifiers\u003c\/li\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\u003eHigh-Efficiency Class D Operation\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\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable class=\"table1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput\u003c\/td\u003e\n\u003ctd\u003e20 k? balanced or unbalanced bridging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Level\u003c\/td\u003e\n\u003ctd\u003e+4 dBu nominal (Balanced, Low input sensitivity); -15 dBV nominal (Unbalanced, High input sensitivity)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Input Level\u003c\/td\u003e\n\u003ctd\u003e-18 dBu (Balanced, Max. gain)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Input Level\u003c\/td\u003e\n\u003ctd\u003e+22 dBu (Low input sensitivity); +4 dBu (High input sensitivity)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGain Adjustment\u003c\/td\u003e\n\u003ctd\u003eSingle-turn audio taper (front-panel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Power (headphones)\u003c\/td\u003e\n\u003ctd\u003e10 mW into 100 ohms (normal); 30 mW into 100 ohms (maximum)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Power (speaker)\u003c\/td\u003e\n\u003ctd\u003e3.5 W RMS (Max., into 8 ohms); 6.5 W RMS (Max., into 4 ohms)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003e20 Hz to 50 kHz (Headphones, ± 1 dB); 20 Hz to 20 kHz (Speaker, ± 1 dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD+N\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 0.1% (Headphones, 20 Hz to 20 kHz, 10 mW into 100 ohms); \u0026lt; 0.1% (Speaker, 1 kHz, 1 W)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; -85 dB (Headphones, below 10 mW into 100 ohms); \u0026lt; -80 dB (Speaker, below 1 W into 8 ohms)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCMRR\u003c\/td\u003e\n\u003ctd\u003e\u0026gt; 50 dB (50 Hz to 120 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Requirement\u003c\/td\u003e\n\u003ctd\u003e24 Vdc @ 30 mA (Idle); 55 mA (1\/8 power; normal voice or music); 225 mA (3.5 W into 8 ohms)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmbient Operating Environment\u003c\/td\u003e\n\u003ctd\u003e0° C to 40° C Maximum; 20° C Recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eHeight: 4.13 in. 10.49 cm; Width: 1.7 in. 4.32 cm; Depth: 2.05 in. 5.21 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Type\u003c\/td\u003e\n\u003ctd\u003eCardboard Box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Dimensions\u003c\/td\u003e\n\u003ctd\u003e3.625 x 4.625 x 2.125 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e.405 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWEEE weight\u003c\/td\u003e\n\u003ctd\u003e.270 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTariff code\u003c\/td\u003e\n\u003ctd\u003e8518.40.2000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"RDL","offers":[{"title":"Default Title","offer_id":43895077666859,"sku":"RDL-DS-HPA3C","price":302.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0642\/3019\/5243\/files\/rdl-ds-hpa3-2_1__62201.1682443411.1280.1280.jpg?v=1775683862","url":"https:\/\/www.empirepro.com\/products\/rdl-ds-hpa3c","provider":"Empire Pro","version":"1.0","type":"link"}