{"product_id":"rdl-hd-pa35ua","title":"RDL HD-PA35UA – 35 W Energy Star 70V Amplifier","description":"\u003ch2\u003eWhat is the RDL HD-PA35UA?\u003c\/h2\u003e\u003cp\u003eThe RDL HD-PA35UA is a 35 W RMS single-input amplifier with a 25 V, 70 V or 100 V constant-voltage output, designed as a single-zone amplifier for energy-efficient commercial systems. It includes bass and treble controls, a VCA-controlled master volume with remote adjustment, and an analog compressor\/limiter that keeps peaks clean. An automatic sleep mode drops consumption below 1 W, meeting Energy Star Version 2.0 audio\/video requirements, and the power supply is included.\u003c\/p\u003e\u003ch2\u003eHow does it work?\u003c\/h2\u003e\u003cp\u003e\u003cimg src=\"https:\/\/rdlnet.com\/wp-content\/uploads\/2024\/01\/hd-pa35ua.jpg\" alt=\"RDL HD-PA35UA 35 watt amplifier\" style=\"max-width:100%;height:auto\" loading=\"lazy\"\u003e\u003c\/p\u003e\u003cp\u003eThe HD-PA35UA can be fed from a variety of RDL or OEM mixers, or add zones to a mix from another RDL HD series mixer amplifier. Unbalanced stereo sources connect on RCA jacks and are summed to the single amplifier channel. The output delivers 35 W RMS on a detachable terminal block at 25 V, 70 V or 100 V for distributed speaker lines. A front-panel control sets input gain, and bass and treble controls adjust equalization at the output. Output level can be VCA controlled from optional RDL remote controls or industry-standard 0 to 10 Vdc or 0 to 10 kΩ controls through a rear-panel RJ45 jack. The analog compressor\/limiter keeps audio unclipped for input overloads of up to 20 dB, and a red LED flashes when it is preventing clipping. Raising the input gain lets the compressor substantially increase average output beyond a standard 35 W amplifier. Rear-panel DIP switches set the sleep delay from 10 minutes to 2 hours in 10 minute increments, or disable sleep for continuous operation. Soft-start switching protects the output from clicks and pops during power-up and power-down. A blue POWER LED is dim in standby and bright when active, and a front-panel pushbutton switches between standby and active modes. The amplifier is engineered and manufactured in the U.S.A., and mounts with RDL HD series accessories such as the \u003ca href=\"https:\/\/creationnetworks.net\/products\/rdl-hd-ra2\"\u003eRDL HD-RA2 rack adapter\u003c\/a\u003e or \u003ca href=\"https:\/\/creationnetworks.net\/products\/rdl-hd-wm1\"\u003eRDL HD-WM1 wall mount\u003c\/a\u003e.\u003c\/p\u003e\u003ch2\u003eWhat are the key features?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e35 W Class D output\u003c\/strong\u003e — 35 W RMS at 25 V, 70 V or 100 V.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic sleep mode\u003c\/strong\u003e — Under 1 W in standby with a 10 minute to 2 hour delay.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressor\/limiter\u003c\/strong\u003e — Analog processing prevents clipping for input overloads up to 20 dB.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemote volume control\u003c\/strong\u003e — VCA master volume accepts RDL remotes or 0 to 10 Vdc control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTone controls\u003c\/strong\u003e — Front-panel bass and treble with center detent.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSumming RCA inputs\u003c\/strong\u003e — Unbalanced stereo sources sum into the single zone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower supply included\u003c\/strong\u003e — 100 to 240 Vac supply with 24 Vdc output.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhere is it typically used?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eConference room\u003c\/li\u003e\n\u003cli\u003eHuddle room\u003c\/li\u003e\n\u003cli\u003eTraining room\u003c\/li\u003e\n\u003cli\u003eCommercial meeting space\u003c\/li\u003e\n\u003cli\u003eMulti-purpose room\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch\"\u003e\u003ctable style=\"border-collapse:collapse;width:100%;min-width:300px;table-layout:fixed\"\u003e\n\u003ccolgroup\u003e\n\u003ccol style=\"width:44%\"\u003e\n\u003ccol style=\"width:56%\"\u003e\n\u003c\/colgroup\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003eHD-PA35UA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eRated Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e35 W RMS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eAudio Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003eUnbalanced stereo summing input on RCA jacks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eMaximum Input Level\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e+ 5 dBV (+11 dBV, one input); (for 1% THD+N at output)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eInput level\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e-15 dBV (180 mV), (to cross compressor threshold equaling 23 W amplified output, both input jacks driven)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eNoise\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e\u0026lt;-75 dB (max gain)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eTHD+N\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e\u0026lt; 0.5% (1 kHz at compressor threshold)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eCompressor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003eThreshold 2 dB below rated output, automatically adjusting attack and release times\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e± 3 dB (50 Hz to 18 kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eTone Controls\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e±10 dB @ 10 kHz, ±9 dB @ 100 Hz (front-panel) with center detent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003ePower Amplifier Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e35 W RMS (25, 70 or 100 V); \u0026lt;1% THD+N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eIndicators (3)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003eFront-panel: Signal present (green), Compressor activity (red), Power (bright=on, dim=standby, blue)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eVCA\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003eOutput level, 0 to 10 Vdc control, RJ45 (compatible with RDL VCA wall controls)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eFront-panel controls (4)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003eInput, EQ (2, bass and treble), Power (momentary pushbutton, toggle on\/standby)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eRear-panel controls (4)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003eSleep (standby) mode delay (4 binary switches)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eEfficiency Standard Used\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e“Energy Star® Program Requirements for Audio\/Video” Version 2.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eSleep Mode Power Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e\u0026lt; 1 W (amplifier and included power supply)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eSleep Mode Delay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e10 minutes to 2 hours (switch-selectable in 10 minute increments)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eSleep Mode Disable\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003eSelectable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eActive Mode Delay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e2 seconds (nominal) after input audio detected\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eAudio Detector Threshold\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e-42 dBV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eAmbient Operating Environment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e32° F to 122° F (0° C to 50° C) Maximum; 68° F (20° C) recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003ePower Supply (included)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e100 to 240 Vac, 50-60 Hz, 50 W; 24 Vdc output to amplifier chassis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eDimensions and Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003eHeight: 3.5 in.(8.89 cm); Width: 8.5 in.(21.6 cm); Depth: 10 in.(25.4 cm); Weight: 7.3 lb. (3.3 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eWhat speakers can it drive?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003e25 V, 70 V or 100 V constant-voltage speaker lines at 35 W RMS.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eCan volume be controlled remotely?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eYes. The VCA accepts RDL remote controls or 0 to 10 Vdc control on an RJ45 jack.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eIs the power supply included?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eYes. The included supply accepts 100 to 240 Vac, 50-60 Hz and provides 24 Vdc to the amplifier.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eWhat inputs does it have?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eAn unbalanced stereo summing input on RCA jacks.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eHow does the sleep mode work?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eWith no input signal the amplifier enters standby after a delay of 10 minutes to 2 hours, drawing under 1 W, and wakes about 2 seconds after audio returns.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eWhat warranty does it carry?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eThis product is covered by a 7-year RDL warranty. For warranty claims, RMAs or support, contact Creation Networks at (888) 230-3661 or sales@creationnetworks.net.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eCan Creation Networks help design the system?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eYes. Our team specifies, programs and installs zoned commercial audio systems for commercial projects nationwide. Call (888) 230-3661 for a quote or design review.\u003c\/p\u003e\u003c\/details\u003e","brand":"RDL","offers":[{"title":"Default Title","offer_id":68025745408236,"sku":"HD-PA35UA","price":348.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0603\/7982\/4364\/files\/hd-pa35ua.jpg?v=1793583134","url":"https:\/\/creationnetworks.net\/products\/rdl-hd-pa35ua","provider":"Creation Networks","version":"1.0","type":"link"}