{"product_id":"rdl-hd-ma35","title":"RDL HD-MA35 – 35 W Mixer Amplifier, 4\/8 Ω Outputs","description":"\u003ch2\u003eWhat is the RDL HD-MA35?\u003c\/h2\u003e\u003cp\u003eThe RDL HD-MA35 is a three-input, 35 W Class D mixer amplifier built for background music, paging and music-on-hold in small commercial spaces. Its main zone drives 4 Ω or 8 Ω speakers, with the impedance selected on a rear-panel switch, while a second 2 W zone and a 600 Ω output serve a small area and telephone music-on-hold. Automatic or manual paging priority, tone controls and a remote-controllable master level make it a complete small-system amplifier.\u003c\/p\u003e\u003ch2\u003eHow does it work?\u003c\/h2\u003e\u003cp\u003e\u003cimg src=\"https:\/\/rdlnet.com\/wp-content\/uploads\/2024\/01\/hd-ma35.jpg\" alt=\"RDL HD-MA35 35 W Mixer Amplifier, 4\/8 Ω Outputs\" style=\"max-width:100%;height:auto\" loading=\"lazy\"\u003e\u003c\/p\u003e\u003cp\u003eInput 1 accepts a balanced mic or line source, with switch-selectable 24 Vdc phantom power and a transformer-isolated line input; inputs 2 and 3 accept unbalanced stereo RCA sources summed to mono. A paging source on Input 1 can duck inputs 2 and 3 by 25 dB through push-to-talk terminals or an adjustable VOX circuit, and the music fades back up when the page ends. The front-panel Zone 1 mixer gives users level controls for each input plus bass and treble tone controls on the 35 W output. A rear-panel Zone 2 mixer with installer trimmers feeds a 2 W amplifier for an 8 Ω speaker and a 600 Ω transformer-balanced music-on-hold output. The Zone 1 master level is VCA controlled and accepts RDL remote level controls or industry-standard 0 to 10 Vdc or 0 to 10 kΩ controls. An analog compressor\/limiter prevents output clipping for input overloads up to 20 dB, so the amplifier can deliver higher average output and clarity than its 35 W rating suggests. A balanced +4 dBu line output feeds additional amplifiers, and a ground-referenced 24 Vdc output (100 mA maximum) can power an optional RDL module mounted on the provided panel space. The included 24 Vdc power supply, standby mode and thermal and short-circuit protection support continuous commercial operation. For installation, use the \u003ca href=\"https:\/\/creationnetworks.net\/products\/rdl-hd-ra2\"\u003eHD-RA2 19-inch rack adapter\u003c\/a\u003e, \u003ca href=\"https:\/\/creationnetworks.net\/products\/rdl-hd-hra1\"\u003eHD-HRA1 10.4-inch rack mount\u003c\/a\u003e or \u003ca href=\"https:\/\/creationnetworks.net\/products\/rdl-hd-wm2\"\u003eHD-WM2 wall mount bracket\u003c\/a\u003e, and the \u003ca href=\"https:\/\/creationnetworks.net\/products\/rdl-hd-asc1\"\u003eHD-ASC1 security cover\u003c\/a\u003e helps prevent tampering with the controls.\u003c\/p\u003e\u003ch2\u003eWhat are the key features?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree inputs with priority ducking\u003c\/strong\u003e — Input 1 paging ducks inputs 2 and 3 by 25 dB via VOX or push-to-talk.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo amplifier zones\u003c\/strong\u003e — A 35 W main zone and a 2 W second zone cover two areas from one unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMusic-on-hold output\u003c\/strong\u003e — A 600 Ω transformer-balanced output feeds telephone equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemote master level\u003c\/strong\u003e — The VCA accepts RDL remote controls or 0 to 10 Vdc and 0 to 10 kΩ controls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnalog compressor\/limiter\u003c\/strong\u003e — Clean, unclipped output is maintained for input overloads up to 20 dB.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower supply included\u003c\/strong\u003e — An external 100 to 240 Vac supply delivers 24 Vdc to the amplifier.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhere is it typically used?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCommercial meeting space\u003c\/li\u003e\n\u003cli\u003eMulti-purpose room\u003c\/li\u003e\n\u003cli\u003eTraining room\u003c\/li\u003e\n\u003cli\u003eHouse of worship\u003c\/li\u003e\n\u003cli\u003eGovernment space\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\u003eAmplifier zones\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003eZone 1: 35 W RMS (front-panel mixer); Zone 2: 2 W RMS, 8 Ω (rear-panel mixer)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eZone 1 output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e4 Ω or 8 Ω, rear-panel switch\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 inputs (3)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e1 balanced mic\/line (terminal block); 2 unbalanced stereo summing (RCA)\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\"\u003eMic: -11.5 dBu; balanced line: +19 dBu; unbalanced: +9 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\u003ePhantom power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e24 Vdc (IEC 61938:2013), switch-selectable on mic input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eDucking\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e25 dB nominal on inputs 2 and\/or 3; VOX or contact closure; 4 s release\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\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eZone 1 frequency response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e±1 dB (50 Hz to 20 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\u003eLine outputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e+4 dBu balanced (terminal block); 0 dBu balanced 600 Ω (Zone 2 mixer)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eMOH output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e0 dBu nominal, 600 Ω transformer-isolated, \u0026gt; 16 dB headroom\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\"\u003e0 to 10 Vdc control, detachable terminal block\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eExternal module power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e24 Vdc, 100 mA maximum, ground-referenced\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\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eOperating 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\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e3.5 x 8.5 x 6.75 in (8.89 x 21.6 x 17.1 cm) H x W x D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e4.5 lb (2 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 the HD-MA35 drive?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eZone 1 drives 4 Ω or 8 Ω speakers, selected on a rear-panel switch, and Zone 2 drives an 8 Ω speaker.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eCan paging override background music automatically?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eYes. A VOX circuit on Input 1 or a push-to-talk contact closure ducks inputs 2 and\/or 3 by 25 dB during a page.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eCan it feed a phone system for music-on-hold?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eYes. A 600 Ω transformer-isolated MOH output is fed from the rear-panel Zone 2 mixer.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eIs the power supply included?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eYes. An external 100 to 240 Vac supply providing 24 Vdc is included.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eCan volume be controlled from the wall?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eYes. The Zone 1 master VCA accepts RDL remote level controls or 0 to 10 Vdc and 0 to 10 kΩ controls.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eIs there a version with different outputs?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eYes. The \u003ca href=\"https:\/\/creationnetworks.net\/products\/rdl-hd-ma35a\"\u003eHD-MA35A\u003c\/a\u003e is the constant voltage (25 V, 70 V or 100 V) version.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eWhat warranty applies?\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","brand":"RDL","offers":[{"title":"Default Title","offer_id":68025751666924,"sku":"HD-MA35","price":394.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0603\/7982\/4364\/files\/hd-ma35.jpg?v=1793583331","url":"https:\/\/creationnetworks.net\/products\/rdl-hd-ma35","provider":"Creation Networks","version":"1.0","type":"link"}