{"product_id":"rdl-ru-pa518","title":"RDL RU-PA518 – Stereo 5 W \/ 18 W Mono Amplifier","description":"\u003ch2\u003eWhat is the RDL RU-PA518?\u003c\/h2\u003e\u003cp\u003eThe RDL RU-PA518 is a compact audio power amplifier that runs in stereo or bridged mono, delivering more than 18 W RMS into 8 Ω in mono. In stereo it provides more than 5 W RMS per channel into 8 Ω or more than 9 W RMS per channel into 4 Ω. A switchable peak limiter and 1\/3-rack RACK-UP chassis make it a practical utility amplifier for small rooms and zones.\u003c\/p\u003e\u003ch2\u003eHow does it work?\u003c\/h2\u003e\u003cp\u003e\u003cimg src=\"https:\/\/rdlnet.com\/wp-content\/uploads\/2024\/01\/ru-pa518.jpg\" alt=\"RDL RU-PA518 stereo or bridged mono power amplifier\" style=\"max-width:100%;height:auto\" loading=\"lazy\"\u003e\u003c\/p\u003e\u003cp\u003eA rear-panel switch selects stereo or bridged mono operation. In stereo, each input feeds its own output, and front-panel knobs set the gain for channel A and channel B. In bridge mode, inputs A and B are mixed together and fed to the single output. An internal peak limiter, enabled by a rear-panel switch, protects speakers from transient peaks and lets more power reach the speakers without clipping. A front-panel LED flashes when the limiter operates, which helps set gain accurately at high levels. Each input has balanced connections on a rear-panel barrier block and unbalanced connections on a phono jack. Outputs are on a barrier block, and 24 Vdc power connects through barrier block terminals or a rear-panel dc jack. The 1\/3-rack chassis mounts at high density with RDL RACK-UP accessories such as the \u003ca href=\"https:\/\/creationnetworks.net\/products\/rdl-ru-hra1\"\u003eRDL RU-HRA1\u003c\/a\u003e or \u003ca href=\"https:\/\/creationnetworks.net\/products\/rdl-rc-1ur\"\u003eRDL RC-1UR\u003c\/a\u003e.\u003c\/p\u003e\u003ch2\u003eWhat are the key features?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStereo or bridged mono\u003c\/strong\u003e — Switch between 2-channel and 18 W mono operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable peak limiter\u003c\/strong\u003e — Protects speakers and delivers more unclipped power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLimiter indicator\u003c\/strong\u003e — Front-panel LED flashes when limiting occurs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalanced and unbalanced inputs\u003c\/strong\u003e — Barrier block and phono jack for each input.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFront-panel level controls\u003c\/strong\u003e — Separate gain knobs for both inputs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1\/3-rack chassis\u003c\/strong\u003e — High-density rack mounting with RACK-UP accessories.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhere is it typically used?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHuddle room\u003c\/li\u003e\n\u003cli\u003eConference room\u003c\/li\u003e\n\u003cli\u003eTraining room\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\"\u003eRU-PA518\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eInputs (2)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003eLine level (+4 dBu nominal bal, -10 dBV nominal unbalanced)\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 Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e20 kΩ balanced bridging, or 10 kΩ unbalanced\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 Connectors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003eBalanced on barrier block; Unbalanced on phono jack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eMinimum Input Signal Levels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003eBalanced: -6 dBu for rated power Unbalanced: -20 dBV for rated power\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 Signal Levels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003eBalanced: +20 dBu Unbalanced: +6 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\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e20 Hz to 40 kHz (±1 dB, stereo mode,8 Ω output @ 5 W RMS) 25 Hz to 40 kHz (±1 dB, stereo mode, 4 Ω output @ 9 W RMS) 25 Hz to 30 kHz (±1 dB, bridge mono mode, 8 Ω output @ 18 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\u003eTHD+N\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e\u0026lt; 0.05% below rated power (1 kHz) \u0026lt; 0.1% below 18 W RMS (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\u003eNoise\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e\u0026lt; -85 dB below rated 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\u003eCMRR\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e\u0026gt; 55 dB (50 Hz to 120 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\u003eCrosstalk\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e\u0026lt; -60 dB (stereo mode, 1 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\u003eOutput Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003eStereo Mode: \u0026gt; 5 W RMS per channel Into 8 Ω \u0026gt; 9 W RMS per channel into 4 Ω Mono Mode: \u0026gt; 18 W RMS into 8 Ω\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 104° F (0° C to 40° C); 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\"\u003eHeight: 1.7 in. (4.3 cm), Width: 5.8 in (15.0 cm), Depth 8.0 in. (20.3 cm)\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 Requirement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003eGROUND-REFERENCED, 24 Vdc @ 1500 mA (RMS output) 1000 mA (Continuous music or voice)\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\u003eHow much power does it deliver?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eMore than 5 W RMS per channel into 8 Ω or 9 W into 4 Ω in stereo, and more than 18 W RMS into 8 Ω in bridged mono.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eHow is mono mode selected?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eWith a rear-panel switch; in bridge mode inputs A and B are mixed and fed to the output.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eWhat inputs does it accept?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eLine-level sources: +4 dBu balanced on a barrier block or -10 dBV unbalanced on a phono jack.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eWhat power does it need?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003e24 Vdc, ground-referenced, at 1500 mA for rated output or 1000 mA for continuous music or voice.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eCan it be rack mounted?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eYes. It is a 1\/3-rack RACK-UP module for high-density mounting with RDL rack accessories.\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 small-room 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":68025745899756,"sku":"RU-PA518","price":340.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0603\/7982\/4364\/files\/ru-pa518.jpg?v=1793583135","url":"https:\/\/creationnetworks.net\/products\/rdl-ru-pa518","provider":"Creation Networks","version":"1.0","type":"link"}