{"product_id":"allnic","title":"Allnic ASRA \/ RHPA-7500 High-Power Headphone \/Integrated Amplifier","description":"\u003ch3 data-start=\"101\" data-end=\"137\" data-fontsize=\"31\" data-lineheight=\"46.5px\" class=\"fusion-responsive-typography-calculated\"\u003eHigh-Power Headphone Amplifier\u003c\/h3\u003e\n\u003cp data-start=\"139\" data-end=\"206\"\u003e\u003cstrong data-start=\"139\" data-end=\"206\"\u003eA High-End Headphone Amplifier Designed Around Drive Capability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"208\" data-end=\"372\"\u003eAllnic answers the most fundamental question in headphone amplifier design:\u003cbr data-start=\"283\" data-end=\"286\"\u003e\u003cstrong data-start=\"286\" data-end=\"372\"\u003e“Not how much output power is required, but how precisely the load is controlled.”\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"374\" data-end=\"520\"\u003eThe ASRA \/ RHPA-7500 is a high-end headphone amplifier that addresses this question head-on, redefining the essence of true drive-oriented design.\u003c\/p\u003e\n\u003cp data-start=\"522\" data-end=\"796\"\u003eThe RHPA-7500 moves beyond the conventional low-power assumptions of traditional headphone amplifiers.\u003cbr data-start=\"624\" data-end=\"627\"\u003eIt is a drive-centric headphone amplifier engineered according to the same principles of current delivery, load control, and output structure used in speaker amplifiers.\u003c\/p\u003e\n\u003cdiv class=\"fusion-text\"\u003e\n\u003ch3 data-start=\"819\" data-end=\"867\" data-fontsize=\"31\" data-lineheight=\"46.5px\" class=\"fusion-responsive-typography-calculated\"\u003e1. Pentode · Triode Dual Output Architecture\u003c\/h3\u003e\n\u003cp data-start=\"869\" data-end=\"985\"\u003eThe ASRA \/ RHPA-7500 adopts a dual output architecture, delivering\u003cbr data-start=\"935\" data-end=\"938\"\u003e\u003cstrong data-start=\"938\" data-end=\"985\"\u003e20W in Pentode mode and 10W in Triode mode.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"987\" data-end=\"1179\"\u003eIn Pentode mode, the sound emphasizes energy, scale, and authoritative control.\u003cbr data-start=\"1066\" data-end=\"1069\"\u003eIn Triode mode, density, purity, and the refined tonal character unique to vacuum tubes come to the forefront.\u003c\/p\u003e\n\u003cp data-start=\"1181\" data-end=\"1381\"\u003eRather than focusing on output figures alone, the core design philosophy of the RHPA-7500 lies in allowing the listener to select the most appropriate drive mode to match the music and the headphones.\u003c\/p\u003e\n\u003ch3 data-start=\"1388\" data-end=\"1425\" data-fontsize=\"31\" data-lineheight=\"46.5px\" class=\"fusion-responsive-typography-calculated\"\u003e2. Permalloy Output Transformer\u003c\/h3\u003e\n\u003cp data-start=\"1426\" data-end=\"1458\"\u003e\u003cem data-start=\"1426\" data-end=\"1458\"\u003e(Permalloy Output Transformer)\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"1460\" data-end=\"1541\"\u003eThe output stage employs high-purity, nickel-based Permalloy output transformers.\u003c\/p\u003e\n\u003cp data-start=\"1543\" data-end=\"1742\"\u003eWith its exceptionally high magnetic permeability and superior micro-signal responsiveness, Permalloy minimizes coloration and transient delay that commonly occur in conventional output transformers.\u003c\/p\u003e\n\u003cp data-start=\"1744\" data-end=\"1974\"\u003eAs a result, the RHPA-7500 achieves an openness and speed reminiscent of OTL designs, while simultaneously preserving the distinctive texture and tonal richness of vacuum tubes—despite utilizing a transformer-coupled output stage.\u003c\/p\u003e\n\u003chr data-start=\"1976\" data-end=\"1979\"\u003e\n\u003ch3 data-start=\"1981\" data-end=\"2031\" data-fontsize=\"31\" data-lineheight=\"46.5px\" class=\"fusion-responsive-typography-calculated\"\u003e3. Dedicated Output for RAAL Ribbon Headphones\u003c\/h3\u003e\n\u003cp data-start=\"2033\" data-end=\"2117\"\u003eRibbon headphones inherently require dedicated impedance matching and output design.\u003c\/p\u003e\n\u003cp data-start=\"2119\" data-end=\"2373\"\u003eRather than treating RAAL ribbon headphones as an exceptional or problematic load, the ASRA \/ RHPA-7500 formally integrates a dedicated drive circuit, including a dedicated Permalloy output transformer, specifically engineered for RAAL ribbon headphones.\u003c\/p\u003e\n\u003cp data-start=\"2375\" data-end=\"2558\"\u003eThis design allows ribbon headphones to be driven directly and stably without any external interface, delivering fast, transparent high frequencies and outstanding spatial resolution.\u003c\/p\u003e\n\u003ch3 data-start=\"2565\" data-end=\"2612\" data-fontsize=\"31\" data-lineheight=\"46.5px\" class=\"fusion-responsive-typography-calculated\"\u003e4. Versatility Beyond a Headphone Amplifier\u003c\/h3\u003e\n\u003cp data-start=\"2614\" data-end=\"2787\"\u003eIn addition to 1\/4-inch and 4-pin XLR headphone outputs, the RHPA-7500 is equipped with speaker binding posts, enabling it to directly drive small, high-efficiency speakers.\u003c\/p\u003e\n\u003cp data-start=\"2789\" data-end=\"2940\"\u003eThis amplifier transcends the traditional boundaries between a headphone amplifier and an integrated amplifier, offering an expanded playback platform.\u003c\/p\u003e\n\u003ch3 data-start=\"2947\" data-end=\"2980\" data-fontsize=\"31\" data-lineheight=\"46.5px\" class=\"fusion-responsive-typography-calculated\"\u003e5. Precision Volume Control\u003c\/h3\u003e\n\u003cp data-start=\"2981\" data-end=\"3029\"\u003e\u003cem data-start=\"2981\" data-end=\"3029\"\u003e(41-Step Constant Impedance Attenuator Option)\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"3031\" data-end=\"3164\"\u003eThe optional 41-step Constant Impedance Attenuator maintains consistent channel balance and tonal density regardless of volume level.\u003c\/p\u003e\n\u003cp data-start=\"3166\" data-end=\"3272\"\u003eEven during fine volume adjustments, it provides precise control without compromising the sonic character.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fusion-sep-clear\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"fusion-separator fusion-full-width-sep sep-none\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"table-1\"\u003e\n\u003cp\u003e\u003cspan dir=\"LTR\" lang=\"en-US\"\u003e\u003cb\u003eS\u003c\/b\u003e\u003c\/span\u003e\u003cspan dir=\"LTR\" lang=\"en-US\"\u003e\u003cb\u003ePE\u003c\/b\u003e\u003c\/span\u003e\u003cspan dir=\"LTR\" lang=\"en-US\"\u003e\u003cb\u003eCI\u003c\/b\u003e\u003c\/span\u003e\u003cspan dir=\"LTR\" lang=\"en-US\"\u003e\u003cb\u003eF\u003c\/b\u003e\u003c\/span\u003e\u003cspan dir=\"LTR\" lang=\"en-US\"\u003e\u003cb\u003eI\u003c\/b\u003e\u003c\/span\u003e\u003cspan dir=\"LTR\" lang=\"en-US\"\u003e\u003cb\u003eC\u003c\/b\u003e\u003c\/span\u003e\u003cspan dir=\"LTR\" lang=\"en-US\"\u003e\u003cb\u003eA\u003c\/b\u003e\u003c\/span\u003e\u003cspan dir=\"LTR\" lang=\"en-US\"\u003e\u003cb\u003eT\u003c\/b\u003e\u003c\/span\u003e\u003cspan dir=\"LTR\" lang=\"en-US\"\u003e\u003cb\u003eI\u003c\/b\u003e\u003c\/span\u003e\u003cspan dir=\"LTR\" lang=\"en-US\"\u003e\u003cb\u003eO\u003c\/b\u003e\u003c\/span\u003e\u003cspan dir=\"LTR\" lang=\"en-US\"\u003e\u003cb\u003eN\u003c\/b\u003e\u003c\/span\u003e\u003cspan dir=\"LTR\" lang=\"en-US\"\u003e\u003cb\u003eS F\u003c\/b\u003e\u003c\/span\u003e\u003cspan dir=\"LTR\" lang=\"en-US\"\u003e\u003cb\u003eO\u003c\/b\u003e\u003c\/span\u003e\u003cspan dir=\"LTR\" lang=\"en-US\"\u003e\u003cb\u003eR:\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong data-start=\"3298\" data-end=\"3314\"\u003eVacuum Tubes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eECF80 × 2 \/ 12AU7 (6211) × 2 \/ 7558 × 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong data-start=\"3360\" data-end=\"3376\"\u003eOutput Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e20W (Pentode) \/ 10W (Triode)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong data-start=\"3411\" data-end=\"3431\"\u003eOutput Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e10Ω – 300Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong data-start=\"3448\" data-end=\"3464\"\u003eVoltage Gain\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e+28dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong data-start=\"3476\" data-end=\"3497\"\u003eHeadphone Outputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e1\/4″ (6.35mm) × 1\u003cbr data-start=\"3517\" data-end=\"3520\"\u003e4-pin XLR × 1\u003cbr data-start=\"3533\" data-end=\"3536\"\u003eRAAL Ribbon Dedicated 4-pin XLR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong data-start=\"3571\" data-end=\"3589\"\u003eSpeaker Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e1 Pair Binding Posts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong data-start=\"3616\" data-end=\"3633\"\u003eAnalog Inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eRCA × 3 \/ XLR × 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong data-start=\"3657\" data-end=\"3675\"\u003eVolume Control\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003ePrecision Potentiometer\u003cbr data-start=\"3701\" data-end=\"3704\"\u003e(Option: 41-Step Constant Impedance Attenuator)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong data-start=\"3755\" data-end=\"3777\"\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e20Hz – 20kHz (±0dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong data-start=\"3803\" data-end=\"3829\"\u003eDimensions (W × D × H)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e35.5 × 44.5 × 14.0 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong data-start=\"3857\" data-end=\"3867\"\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e12 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Allnic","offers":[{"title":"Black \/ Standard","offer_id":56768220168565,"sku":null,"price":5900.0,"currency_code":"GBP","in_stock":true},{"title":"Black \/ CIA Version","offer_id":56768293732725,"sku":null,"price":7200.0,"currency_code":"GBP","in_stock":true},{"title":"Silver \/ Standard","offer_id":56768220201333,"sku":null,"price":5900.0,"currency_code":"GBP","in_stock":true},{"title":"Silver \/ CIA Version","offer_id":56768293765493,"sku":null,"price":7200.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2222\/0805\/files\/z-wiasPiEJWIpMYP65LGyAw_0_gps_generated.png?v=1780673759","url":"https:\/\/www.kronosav.com\/products\/allnic","provider":"Kronos AV","version":"1.0","type":"link"}