{"product_id":"harbeth-nelson-bass-extender-stand-solution-pr","title":"Harbeth Nelson Bass Extender + Stand Solution (pr)","description":"\u003cdiv class=\"elementor-element elementor-element-3992a9e elementor-widget elementor-widget-text-editor\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"elementor-element elementor-element-952dc22 elementor-widget elementor-widget-text-editor\"\u003e\n\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cdiv class=\"elementor-element elementor-element-81dd12c elementor-widget elementor-widget-text-editor\"\u003e\n\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003ch2 style=\"text-align: center;\"\u003e\u003cstrong\u003eMore bass in the same space\u003c\/strong\u003e\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"elementor-element elementor-element-6d67d5b elementor-widget elementor-widget-text-editor\"\u003e\n\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp style=\"text-align: center;\"\u003eA high-performance design that produces dramatic bass without compromising space.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cdiv class=\"elementor-slide-heading\" style=\"text-align: center;\"\u003e\"The Harbeth smoothness that makes for continued fatigue-free listening is further enhanced with the extra richness the Nelson subwoofer stand has brought to the mix. If you own a pair of Harbeth P3ESR or LS3\/5A equivalents, you owe it to your ears to match them with this ultimate accessory.\"\u003c\/div\u003e\n\u003cdiv class=\"elementor-slide-heading\" style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"elementor-slide-description\" style=\"text-align: center;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eRobert Edwards - Bafta-Award winning Sound Director\u003c\/span\u003e\u003c\/div\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eDesigned specifically for compact mini monitors including all\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHarbeth P3ESR and BBC LS3\/5A\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003emodels, the Nelson incorporates a 110mm Harbeth-made bass driver in a bandpass enclosure powered by\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e50 watts of digital amplification\u003c\/strong\u003e, extending low-frequency response down to\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e30Hz (±3dB)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewhile functioning simultaneously as a purpose-built speaker stand. The Nelson solves two problems in a single product: it eliminates the compromises of conventional stand selection for compact monitors and delivers genuine subwoofer-grade bass extension without occupying additional floor space beyond the stand footprint the speaker already requires.\u003c\/p\u003e\n\u003ch2\u003eBandpass Bass Extension: More Bass in the Same Space\u003c\/h2\u003e\n\u003cp\u003eThe Nelson uses a 110mm Harbeth-manufactured bass drive unit loaded in a bandpass enclosure, a cabinet topology specifically chosen for its ability to produce high output over a defined and controlled frequency band with low distortion. The bandpass alignment filters the bass driver's output acoustically, producing a naturally rolled-off response above its operating range that integrates smoothly with the host loudspeaker's bass output beginning at 75Hz. This means the Nelson does not require an electronic low-pass filter in the signal path between the main amplifier and the host speaker, avoiding the phase and timing complications that conventional subwoofer crossovers can introduce. The result is a bass extension system that adds meaningful low-frequency output from 30Hz upward without creating an audible discontinuity between the sub-bass and the midrange of the P3ESR or LS3\/5A mounted above it. The composite materials used in the Nelson's construction, inspired by aviation industry structural engineering practices, provide high cabinet stiffness with low mass, minimising resonance and cabinet colouration in the bass register.\u003c\/p\u003e\n\u003ch2\u003eActive Amplification and Signal Integration\u003c\/h2\u003e\n\u003cp\u003eThe Nelson's internal 50W digital amplifier drives the 110mm bass unit directly, with the Nelson drawing its signal from the binding posts of the host loudspeaker rather than from a separate preamp output or line-level tap. A fitted lead connects the Nelson to the host speaker's binding posts, and the Nelson's transformer-balanced input presents an impedance greater than 5 kilohms to the main amplifier, meaning it draws virtually no current from the amplifier driving the host speaker and has no measurable effect on the amplifier's load characteristics or the host speaker's frequency response. This connection method makes the Nelson compatible with essentially any amplifier and host speaker combination, requiring no modification to the existing system and no additional interconnects or signal splitting hardware. A front-panel sub-level control allows the listener to adjust the bass output up or down to suit personal preference, room characteristics, and programme material, giving the system genuine flexibility across different listening situations and music genres.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Stand and Bass Extender:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe Nelson functions simultaneously as a purpose-built speaker stand and a powered bass extension system, adding 30Hz to 75Hz low-frequency output without requiring any additional floor space beyond the stand footprint the host speaker already occupies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e110mm Harbeth-Made Bass Driver in Bandpass Enclosure:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eA Harbeth-manufactured 110mm bass unit loaded in a bandpass cabinet alignment delivers controlled, low-distortion bass output that integrates acoustically with the host speaker without requiring an electronic crossover in the main signal path.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50W Digital Amplification:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAn internal 50W RMS digital amplifier powers the bass driver with sufficient headroom for high-output listening levels, maintaining tight bass control across the full dynamic range of the programme material.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBinding Post Signal Connection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eA fitted lead connects the Nelson directly to the host speaker's binding posts, drawing signal in parallel with the main speaker without loading the amplifier or altering the host speaker's characteristics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGreater Than 5 Kilohm Transformer-Balanced Input:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe transformer-balanced active input presents virtually no load to the main amplifier, ensuring complete compatibility with tube and solid-state amplifiers of any output impedance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub-Level Control:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eA continuously variable bass level control allows the listener to adjust the Nelson's output to match room acoustics, personal preference, and musical genre without tools or system reconfiguration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAviation-Inspired Composite Construction:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCabinet panels constructed from composite materials sourced from aerospace manufacturing practice provide high structural stiffness and low mass, minimising cabinet resonance and colouration in the bass register.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible with Harbeth P3ESR and BBC LS3\/5A Models:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe Nelson is designed and dimensioned specifically for compact mini monitors including all Harbeth P3ESR variants and BBC LS3\/5A models from manufacturers including Falcon Acoustics and Graham Audio.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eActive bass extender and integrated speaker stand\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBass Driver\u003c\/td\u003e\n\u003ctd\u003e1 x 110mm Harbeth-made bass unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Type\u003c\/td\u003e\n\u003ctd\u003eBandpass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Range\u003c\/td\u003e\n\u003ctd\u003e30Hz to 75Hz ±3dB free-space\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Power Output\u003c\/td\u003e\n\u003ctd\u003e50W RMS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance\u003c\/td\u003e\n\u003ctd\u003eActive, greater than 5 kilohm transformer-balanced input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Connection\u003c\/td\u003e\n\u003ctd\u003eFitted lead connects to binding posts of host loudspeaker\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e24V DC, 2A, 5.5\/2.1mm connector, centre positive, reverse polarity protected\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight to Speaker Mounting Plate\u003c\/td\u003e\n\u003ctd\u003e750mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight to Top of P3ESR\u003c\/td\u003e\n\u003ctd\u003e1250mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight to P3ESR Tweeter Level\u003c\/td\u003e\n\u003ctd\u003e1075mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e350mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight (without packing)\u003c\/td\u003e\n\u003ctd\u003e7.6kg each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight (with packing)\u003c\/td\u003e\n\u003ctd\u003e11.2kg each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Manufacture\u003c\/td\u003e\n\u003ctd\u003eEngland, United Kingdom\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Harbeth","offers":[{"title":"Default Title","offer_id":62848236388511,"sku":null,"price":3800.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5532\/6111\/files\/Nelson-subwoofer-stand-product_6ebfaf17-e877-49c3-8c21-41750cd69ee3.jpg?v=1786400372","url":"https:\/\/altitudoaudio.ca\/products\/harbeth-nelson-bass-extender-stand-solution-pr","provider":"Altitudo Audio","version":"1.0","type":"link"}