{"product_id":"unison-research-triode-25","title":"Unison Research Triode 25","description":"\u003cstrong\u003eThe Unison Research Triode 25 operates on a push-pull design that harnesses the full potential of EL34 tubes to deliver exceptional audio fidelity. This amplifier exemplifies the critical relationship between engineering precision and acoustic performance.\u003c\/strong\u003e\u003cbr\u003e\u003chr\u003e\u003cbr\u003eThe Triode 25 amplifier utilizes a push-pull configuration, inherently designed to optimize efficiency and linearity by employing a final stage that amplifies both the positive and negative halves of the audio signal. This dual-mode operation leverages ultralinear technology, allowing for improved power output and reduced distortion levels across the audio spectrum. The output transformer is a key component, designed symmetrically to maintain linear signal reproduction while also addressing concerns of odd-order harmonic distortion common in traditional amplifier designs. The configuration enables a higher output power of approximately 45 watts per channel in pentode mode and approximately 25 watts per channel in triode mode, ensuring efficient energy management with lower thermal output. Additionally, the carefully designed amplification stages and negative feedback mechanism work to further reduce distortion, which enhances overall sound quality, extending the amplifier's performance within the operational limits of the EL34 valves.\u003cbr\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePush-pull Configuration:\u003c\/strong\u003e Provides higher output power and efficiency, leading to less heat generation and prolonged tube life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltralinear Operation:\u003c\/strong\u003e Achieves a more linear response in the audio band, minimizing harmonic distortion and enhancing sound clarity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Operation Modes:\u003c\/strong\u003e Triode mode for rich and warm sound, and pentode mode for higher power and efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Quality Output Transformer:\u003c\/strong\u003e Designed for symmetrical performance, crucial for accurate audio signal reproduction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNegative Feedback:\u003c\/strong\u003e Reduces distortion and improves overall sound fidelity, ensuring a more accurate auditory experience.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOutput Stage: Push-pull, ultralinear, Class-AB\u003c\/li\u003e\n\u003cli\u003eOutput Power: Approx. 45 watts per channel (Pentode), Approx. 25 watts per channel (Triode)\u003c\/li\u003e\n\u003cli\u003eOutput Impedance: 6 Ohm\u003c\/li\u003e\n\u003cli\u003eInput Impedance: 47 kOhm \/ 50 pF\u003c\/li\u003e\n\u003cli\u003eNegative Feedback: 5 dB or 1.8 dB\u003c\/li\u003e\n\u003cli\u003eValve Complement: 2 x ECC83 (12AX7), 1 x ECC82 (12AU7), 4 x EL34 (6CA7)\u003c\/li\u003e\n\u003cli\u003ePower Consumption: 300 watt max\u003c\/li\u003e\n\u003cli\u003eFuses: T6.3A from 100V to 130V, T3.15A from 220V to 250V\u003c\/li\u003e\n\u003cli\u003eDimensions: 30 cm x 45 cm x H. 20 cm\u003c\/li\u003e\n\u003cli\u003eNet Weight: 20 Kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Unison Research","offers":[{"title":"Cherry","offer_id":43088230973553,"sku":"URT25CH","price":4499.0,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":43088231006321,"sku":"URT25B","price":4499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0642\/0571\/7617\/files\/TRIODE2525W_002_1e758abf-4196-4044-b010-c20c5a6ab2a9.jpg?v=1774188136","url":"https:\/\/shopodsy.com\/products\/unison-research-triode-25","provider":"ODSY","version":"1.0","type":"link"}