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data-emotion-css=\"1vigfr\"\u003e\u003c\/style\u003e\n\u003cdiv class=\"builder-column css-1vigfr\"\u003e\u003cdiv class=\"builder-blocks builder-blocks-child css-h47494\" builder-type=\"blocks\" builder-parent-id=\"builder-384f65d12fc34a82be6d6cf4724ed6dd\"\u003e\n\u003cstyle data-emotion-css=\"hgfgng\"\u003e\u003c\/style\u003e\n\u003cdiv class=\"builder-block builder-acf5b8ececbd4a59b864c92ca5b6a1af builder-has-component css-hgfgng\" builder-id=\"builder-acf5b8ececbd4a59b864c92ca5b6a1af\"\u003e\n\u003cstyle data-emotion-css=\"1qggkls\"\u003e\u003c\/style\u003e\n\u003cspan class=\"builder-text css-1qggkls\"\u003e\u003cp\u003eThe Pass Labs INT-25 is an integrated amplifier and a harmonious fusion of power and precision in a single chassis. The INT-25 combines \u003cspan style=\"font-size: 14px;\"\u003ethe exceptional performance of the XP-12 line-level preamplifier\u003c\/span\u003e with the robust power of the XA25 amplifier, resulting in a formidable all-in-one solution for audiophiles. With its pure Class A topology and 25 watts per channel output, this integrated amplifier delivers breathtaking clarity and dynamics, effortlessly driving a wide range of speakers. The INT-25 features precise volume control and input selection, along with a host of connectivity options including balanced and single-ended inputs. Its sleek, minimalist design embodies Pass Labs' commitment to both aesthetics and audio excellence, making it a standout choice for those seeking uncompromising sound quality and convenience in one exceptional package.\u003c\/p\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cstyle data-emotion-css=\"zy4j2t\"\u003e\u003c\/style\u003e\n\u003cdiv class=\"builder-column css-zy4j2t\"\u003e\u003cdiv class=\"builder-blocks builder-blocks-child css-h47494\" builder-type=\"blocks\" builder-parent-id=\"builder-384f65d12fc34a82be6d6cf4724ed6dd\"\u003e\u003cdiv class=\"builder-block builder-7c04d3ce509a47a8a03d9d90a50177eb css-1y6p72u\" builder-id=\"builder-7c04d3ce509a47a8a03d9d90a50177eb\"\u003e\n\u003cpicture\u003e\u003csource srcset=\"https:\/\/cdn.builder.io\/api\/v1\/image\/assets%2F48d1cdcd52ec4d289f1ef8c4f75da167%2F0da24ca69eee4c5eb83b727cb4ebe46e?format=webp\u0026amp;width=100 100w, https:\/\/cdn.builder.io\/api\/v1\/image\/assets%2F48d1cdcd52ec4d289f1ef8c4f75da167%2F0da24ca69eee4c5eb83b727cb4ebe46e?format=webp\u0026amp;width=200 200w, https:\/\/cdn.builder.io\/api\/v1\/image\/assets%2F48d1cdcd52ec4d289f1ef8c4f75da167%2F0da24ca69eee4c5eb83b727cb4ebe46e?format=webp\u0026amp;width=400 400w, https:\/\/cdn.builder.io\/api\/v1\/image\/assets%2F48d1cdcd52ec4d289f1ef8c4f75da167%2F0da24ca69eee4c5eb83b727cb4ebe46e?format=webp\u0026amp;width=800 800w, https:\/\/cdn.builder.io\/api\/v1\/image\/assets%2F48d1cdcd52ec4d289f1ef8c4f75da167%2F0da24ca69eee4c5eb83b727cb4ebe46e?format=webp\u0026amp;width=1200 1200w, https:\/\/cdn.builder.io\/api\/v1\/image\/assets%2F48d1cdcd52ec4d289f1ef8c4f75da167%2F0da24ca69eee4c5eb83b727cb4ebe46e?format=webp\u0026amp;width=1600 1600w, https:\/\/cdn.builder.io\/api\/v1\/image\/assets%2F48d1cdcd52ec4d289f1ef8c4f75da167%2F0da24ca69eee4c5eb83b727cb4ebe46e?format=webp\u0026amp;width=2000 2000w, https:\/\/cdn.builder.io\/api\/v1\/image\/assets%2F48d1cdcd52ec4d289f1ef8c4f75da167%2F0da24ca69eee4c5eb83b727cb4ebe46e?format=webp\u0026amp;width=778 778w\" type=\"image\/webp\"\u003e\u003cstyle data-emotion-css=\"12153wi\"\u003e\u003c\/style\u003e\n\u003cimg role=\"presentation\" loading=\"lazy\" class=\"builder-image css-12153wi\" src=\"https:\/\/cdn.builder.io\/api\/v1\/image\/assets%2F48d1cdcd52ec4d289f1ef8c4f75da167%2F0da24ca69eee4c5eb83b727cb4ebe46e?width=778\" srcset=\"https:\/\/cdn.builder.io\/api\/v1\/image\/assets%2F48d1cdcd52ec4d289f1ef8c4f75da167%2F0da24ca69eee4c5eb83b727cb4ebe46e?width=100 100w, https:\/\/cdn.builder.io\/api\/v1\/image\/assets%2F48d1cdcd52ec4d289f1ef8c4f75da167%2F0da24ca69eee4c5eb83b727cb4ebe46e?width=200 200w, https:\/\/cdn.builder.io\/api\/v1\/image\/assets%2F48d1cdcd52ec4d289f1ef8c4f75da167%2F0da24ca69eee4c5eb83b727cb4ebe46e?width=400 400w, https:\/\/cdn.builder.io\/api\/v1\/image\/assets%2F48d1cdcd52ec4d289f1ef8c4f75da167%2F0da24ca69eee4c5eb83b727cb4ebe46e?width=800 800w, https:\/\/cdn.builder.io\/api\/v1\/image\/assets%2F48d1cdcd52ec4d289f1ef8c4f75da167%2F0da24ca69eee4c5eb83b727cb4ebe46e?width=1200 1200w, https:\/\/cdn.builder.io\/api\/v1\/image\/assets%2F48d1cdcd52ec4d289f1ef8c4f75da167%2F0da24ca69eee4c5eb83b727cb4ebe46e?width=1600 1600w, https:\/\/cdn.builder.io\/api\/v1\/image\/assets%2F48d1cdcd52ec4d289f1ef8c4f75da167%2F0da24ca69eee4c5eb83b727cb4ebe46e?width=2000 2000w, https:\/\/cdn.builder.io\/api\/v1\/image\/assets%2F48d1cdcd52ec4d289f1ef8c4f75da167%2F0da24ca69eee4c5eb83b727cb4ebe46e?width=778 778w\" sizes=\"(max-width: 638px) 98vw, (max-width: 998px) 28vw, 56vw\"\u003e\u003c\/picture\u003e\u003cstyle data-emotion-css=\"qjm9kp\"\u003e\u003c\/style\u003e\n\u003cdiv class=\"builder-image-sizer css-qjm9kp\"\u003e \u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cstyle data-emotion-css=\"1klx8kc\"\u003e\u003c\/style\u003e\n\u003cdiv class=\"builder-block builder-36509996755e433d991e945c4ac6efc8 builder-has-component css-1klx8kc\" builder-id=\"builder-36509996755e433d991e945c4ac6efc8\"\u003e\u003cspan class=\"builder-text css-1qggkls\"\u003e\u003cp\u003e\u003cstrong\u003eDragon Cable Recommendation:\u003c\/strong\u003e we recommend pairing the INT-25 amplifier with our award-winning \u003ca href=\"https:\/\/www.moon-audio.pro\/silver-dragon-interconnect-cable-v2.html\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eSilver Dragon Interconnects\u003c\/a\u003e. The Silver Dragon Interconnect is one of our best-selling cables at Moon Audio. Sold in Pairs, it is our top-of-the-line silver conductor-based interconnect. With a braided geometry and amazing shielding, this interconnect is a remarkable solution where noise isolation is key. The \u003ca href=\"https:\/\/www.moon-audio.pro\/blue-dragon-power-cord.html\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eBlue Dragon Power Cable\u003c\/a\u003e is also recommended to provide the cleanest and unbridled power to your high-end amplifier.\u003c\/p\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cstyle data-emotion-css=\"1grqok5\"\u003e\u003c\/style\u003e\n\u003cdiv class=\"builder-block builder-ba4a1b43cd9641d691adfd508a84801a builder-has-component css-1grqok5\" builder-id=\"builder-ba4a1b43cd9641d691adfd508a84801a\"\u003e\u003cspan class=\"builder-text css-1qggkls\"\u003e\u003cp\u003eThe INT-25 amplifier sports a brand-new design by Pass Labratories, inspired by the over fifty years of Nelson Pass' expertise of power amplifiers and the progression of combining sound, style, and performance. The INT-25 carries on the same legacy of beauty, in both the machine and the joys of listening to music.\u003c\/p\u003e\n\u003cp\u003eThe INT-25 is a Class A amplifier with 26dB of gain, amazing noise and distortion measurements, and much more. Inside the box you'll find the remote control, power cord, and spare fuse. The speaker binding posts can accept spades, banana plugs, or bare wire.\u003c\/p\u003e\n\u003cp\u003eOn the front of the amplifier, you'll find the large volume control, a volume digital meter, and buttons for on\/off, mute, and three input options for external audio gear to connect to your system.\u003c\/p\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cstyle data-emotion-css=\"ur9nhf\"\u003e\u003c\/style\u003e\n\u003cdiv class=\"builder-block builder-5c6f7159f8e54855b21ed4f93b945a7a css-ur9nhf\" builder-id=\"builder-5c6f7159f8e54855b21ed4f93b945a7a\"\u003e\u003c\/div\u003e\n\u003cstyle data-emotion-css=\"15auezb\"\u003e\u003c\/style\u003e\n\u003cdiv class=\"builder-block builder-0df384557b7f44e49649bd9e444b446e builder-has-component css-15auezb\" builder-id=\"builder-0df384557b7f44e49649bd9e444b446e\"\u003e\u003cspan class=\"builder-text css-1qggkls\"\u003e\u003ch3\u003eDesign Elements of the INT-25\u003c\/h3\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cstyle data-emotion-css=\"vhjv3x\"\u003e\u003c\/style\u003e\n\u003cdiv class=\"builder-block builder-c840a48ea2ba423380a1029f748ec129 builder-has-component css-vhjv3x\" builder-id=\"builder-c840a48ea2ba423380a1029f748ec129\"\u003e\u003cspan class=\"builder-text css-1qggkls\"\u003e\u003cp\u003ePass Labs crafts FET amplifiers characterized by robust output stages, expansive heat sinks, and substantial power supplies. Utilizing premium components in uncomplicated linear configurations, these amplifiers are meticulously assembled and evaluated. Their performance is exemplary, both in measurements and auditory experience, with proven reliability. Through two decades of continuous innovation, the X and XA series have maintained their position at the pinnacle of high-end audio.\u003c\/p\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cstyle data-emotion-css=\"anwbsh\"\u003e\u003c\/style\u003e\n\u003cdiv class=\"builder-block builder-077352e45943465ea0139e5adaa592c7 builder-has-component css-anwbsh\" builder-id=\"builder-077352e45943465ea0139e5adaa592c7\"\u003e\u003cspan class=\"builder-text css-1qggkls\"\u003e\u003cp\u003eThe INT-25 distills this legacy into a more compact form. This Class A stereo amplifier, offered at a more accessible price point, leverages reduced power demands to incorporate streamlined single-ended circuitry with a minimized component count in the signal path. Consequently, it eliminates degeneration—often referred to as \"the other negative feedback\"—across all stages.\u003c\/p\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cstyle data-emotion-css=\"10arg7\"\u003e\u003c\/style\u003e\n\u003cdiv class=\"builder-block builder-36afc23e3b6243e6a5281797ff651cdb builder-has-component css-10arg7\" builder-id=\"builder-36afc23e3b6243e6a5281797ff651cdb\"\u003e\u003cspan class=\"builder-text css-1qggkls\"\u003e\u003cp\u003eThe simplified architecture, featuring fewer gain stages, enhances both speed and stability. Operating at lower voltages enables the use of higher bias currents in gain devices, pushing them further into Class A territory. Advanced power FET technology supplants arrays of small parallel transistors with a single pair of industrial-grade devices, each rated at 700 watts and 40 amps. Equipped with a novel constant-current bias circuit that mitigates temperature fluctuations and is free from current-hogging concerns, these devices interface directly with speakers. This direct connection, devoid of ballast resistors, yields minimal distortion and optimal damping factor. The absence of degeneration further boosts efficiency and Class A operating current, facilitating extended Class A performance with low impedance and reactive loads.\u003c\/p\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv class=\"builder-block builder-be54a1ca34e14a8b99845491550ade4a builder-has-component css-anwbsh\" builder-id=\"builder-be54a1ca34e14a8b99845491550ade4a\"\u003e\u003cspan class=\"builder-text css-1qggkls\"\u003e\u003cp\u003eAt the amplifier's core, a straightforward front-end employs two pairs of Pass Labs' preferred NOS complementary FETs in common-source configuration, integrated into a current feedback (CFA) design. The preamplifier section presents a simplified, single-ended adaptation of its counterparts in the INT-60 and INT-250 models, featuring three line-level inputs without line-level output.\u003c\/p\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cstyle data-emotion-css=\"uk7b2m\"\u003e\u003c\/style\u003e\n\u003cdiv class=\"builder-block builder-13ad2ce2696e44db890ab52e643097ed builder-has-component css-uk7b2m\" builder-id=\"builder-13ad2ce2696e44db890ab52e643097ed\"\u003e\u003cspan class=\"builder-text css-1qggkls\"\u003e\u003cp\u003eEvery element in the audio chain, from the microphone to the speaker, imparts an enduring signature to the music. The XA25's amplification stage, being direct-coupled, eschews DC servos and frequency compensation, ensuring a transparent audio path. In keeping with Pass Labs' philosophy, the INT-25's technology and construction serve solely to enhance the listening experience. While it boasts impressive technical specifications, its true distinction lies in its subjective qualities. In a market where technically proficient products often lack vibrancy, this amplifier injects fresh vitality into musical reproduction.\u003c\/p\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv class=\"builder-block builder-fcddfd7cc68a4971862505c1b88a6502 css-ur9nhf\" builder-id=\"builder-fcddfd7cc68a4971862505c1b88a6502\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"builder-block builder-f2fd06540c5f4347ad69ecca2f942261 builder-has-component css-15auezb\" builder-id=\"builder-f2fd06540c5f4347ad69ecca2f942261\"\u003e\u003cspan class=\"builder-text css-1qggkls\"\u003e\u003ch3\u003ePass Labs and First Watt\u003c\/h3\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cstyle data-emotion-css=\"x60tf9\"\u003e\u003c\/style\u003e\n\u003cdiv class=\"builder-block builder-4321a7d1b08a41edab318d9097d9c75b builder-has-component css-x60tf9\" builder-id=\"builder-4321a7d1b08a41edab318d9097d9c75b\"\u003e\u003cspan class=\"builder-text css-1qggkls\"\u003e\u003cp\u003ePass Labs and First Watt were founded by hi-fi legend Nelson Pass. After co-founding and later selling Threshold Audio, Pass began working out of his Auburn, California, home in the early 1990s to develop prototypes of single-ended Class A amplifier designs under the name Pass Labs. Pass Labs quickly became known for its commercially produced Aleph, X, and XA Series amps, and preamps. Pass later started First Watt as a passion project focusing on low-power amps for a niche audiophile audience. Today, Pass splits his time between the two companies, with production happening in Pass Labs' facility in Foresthill, California, USA. Some of Pass Lab’s most notable products include the HPA-1 Headphone Amplifier, their integrated amp series (featuring the Pass Labs INT-25, Pass Labs INT-60, and the Pass Labs INT-250), the Pass Labs XA25, and more. If you’re looking for a monoblock amplifier, stereo amplifier, integrated amplifier, or headphone amplifier, then Pass Labs has everything you need for your high-end audio. Visit passlabs.com for more info.\u003c\/p\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv class=\"builder-block builder-41588b6b03ec4630837ca220d1e6be2b css-ur9nhf\" builder-id=\"builder-41588b6b03ec4630837ca220d1e6be2b\"\u003e\u003c\/div\u003e\n\u003cstyle data-emotion-css=\"2wehui\"\u003e\u003c\/style\u003e\n\u003cdiv class=\"builder-block builder-ab6235e7c63848f3acc2ad18de27c629 builder-has-component css-2wehui\" builder-id=\"builder-ab6235e7c63848f3acc2ad18de27c629\"\u003e\u003cdiv class=\"builder-columns css-1840m1q\"\u003e\n\u003cstyle data-emotion-css=\"2keume\"\u003e\u003c\/style\u003e\n\u003cdiv class=\"builder-column css-2keume\"\u003e\u003cdiv class=\"builder-blocks builder-blocks-child css-h47494\" builder-type=\"blocks\" builder-parent-id=\"builder-ab6235e7c63848f3acc2ad18de27c629\"\u003e\n\u003cdiv class=\"builder-block builder-ad230f8e2d4b4a2aa3d23a990a9809ad builder-has-component css-hgfgng\" builder-id=\"builder-ad230f8e2d4b4a2aa3d23a990a9809ad\"\u003e\u003cspan class=\"builder-text css-1qggkls\"\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cstyle data-emotion-css=\"gbu1aj\"\u003e\u003c\/style\u003e\n\u003cdiv class=\"builder-block builder-bff12ab0241a4a2aa75ad1fc101c907b builder-has-component css-gbu1aj\" builder-id=\"builder-bff12ab0241a4a2aa75ad1fc101c907b\"\u003e\u003cspan class=\"builder-text css-1qggkls\"\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass A Operation\u003c\/strong\u003e: Utilizes pure Class A operation for pristine sound quality and low distortion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e25 Watts per Channel\u003c\/strong\u003e: Provides 25 watts of power per channel into 8 ohms, suitable for a variety of speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombination of XP-12 Preamplifier and XA-25 Amplifier\u003c\/strong\u003e: Integrates the highly regarded XP-12 line-level preamplifier with the INT-25 amplifier for a seamless all-in-one solution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSymmetrical Circuitry\u003c\/strong\u003e: Ensures balanced and accurate audio reproduction, capturing fine musical details.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Quality Components\u003c\/strong\u003e: Meticulously selected components contribute to the amplifier's exceptional sound clarity and dynamics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise Volume Control\u003c\/strong\u003e: Features precise volume control for fine adjustments to suit individual listening preferences.\u003c\/li\u003e\n\u003cli\u003eSingle-ended (RCA) inputs for flexible connectivity options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMusicality\u003c\/strong\u003e: Known for its musicality, the INT-25 amplifier allows listeners to fully immerse themselves in the nuances of their favorite music.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimalist Design\u003c\/strong\u003e: Boasts a clean and minimalist design that reflects Pass Labs' commitment to simplicity and performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Build Quality\u003c\/strong\u003e: Crafted with attention to detail and high-quality materials for a durable and long-lasting amplifier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEfficient Loudspeaker Compatibility\u003c\/strong\u003e: Ideal for use with sensibly efficient loudspeakers, providing engaging and detailed sound reproduction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable Performance\u003c\/strong\u003e: The INT-25 amplifier is designed for reliability and long-term performance, requiring minimal adjustments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExceptional Transparency\u003c\/strong\u003e: Delivers exceptional transparency and clarity, allowing the listener to hear every detail in the music.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cstyle data-emotion-css=\"bst442\"\u003e\u003c\/style\u003e\n\u003cdiv class=\"builder-column css-bst442\"\u003e\u003cdiv class=\"builder-blocks builder-blocks-child css-h47494\" builder-type=\"blocks\" builder-parent-id=\"builder-ab6235e7c63848f3acc2ad18de27c629\"\u003e\n\u003cdiv class=\"builder-block builder-a2e4c9e19fbf4e1491ffc88924ec2d77 builder-has-component css-hgfgng\" builder-id=\"builder-a2e4c9e19fbf4e1491ffc88924ec2d77\"\u003e\u003cspan class=\"builder-text css-1qggkls\"\u003e\u003ch3\u003eWhat's in the Box?\u003c\/h3\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv class=\"builder-block builder-166575c712f2453cbcede96fb54b8e28 builder-has-component css-hgfgng\" builder-id=\"builder-166575c712f2453cbcede96fb54b8e28\"\u003e\u003cspan class=\"builder-text css-1qggkls\"\u003e\u003cul\u003e\n\u003cli\u003eINT-25 Amplifier\u003c\/li\u003e\n\u003cli\u003eStock Power Cable\u003c\/li\u003e\n\u003cli\u003eUser Manual\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"builder-block builder-e0d0644981d14219a6df8f52131b0d64 css-ur9nhf\" builder-id=\"builder-e0d0644981d14219a6df8f52131b0d64\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"builder-block builder-6f514377529d4587a7570715f1011828 builder-has-component css-15auezb\" builder-id=\"builder-6f514377529d4587a7570715f1011828\"\u003e\u003cspan class=\"builder-text css-1qggkls\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cstyle data-emotion-css=\"1i3ai6k\"\u003e\u003c\/style\u003e\n\u003cdiv class=\"builder-block builder-43f43ea1946145669fec7b367cd98255 builder-has-component css-1i3ai6k\" builder-id=\"builder-43f43ea1946145669fec7b367cd98255\"\u003e\u003cspan class=\"builder-text css-1qggkls\"\u003e\u003cp\u003e\u003cstrong\u003eWhat is the power output of the Pass Labs INT-25 Integrated Amplifier?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Pass Labs INT-25 Integrated Amplifier delivers 25 Watts per channel into 8 ohms. Despite its moderate power output, the INT-25 is designed to excel in driving high-quality speakers with precision and clarity. Its Class A operation ensures a clean and detailed sound signature, making it an excellent choice for discerning audiophiles who prioritize sonic purity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the key features of the Pass Labs INT-25 Integrated Amplifier? \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Pass Labs INT-25 is packed with features that appeal to audio enthusiasts. It includes a fully balanced input stage and a discrete, direct-coupled FET output stage for exceptional signal integrity and low distortion. The INT-25 also features a high-quality volume control system, remote control operation, and a home theater bypass mode for easy integration into a multi-channel setup. Its compact size and elegant design make it versatile and suitable for a variety of audio systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the Pass Labs INT-25 drive difficult or inefficient speakers?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, despite its modest power rating, the Pass Labs INT-25 is capable of driving a wide range of speakers effectively. Its Class A operation and high-current capability allow it to handle challenging speaker loads with ease. The INT-25 pairs particularly well with high-efficiency speakers that benefit from its clean and detailed amplification. Users can expect a dynamic and engaging listening experience, even with speakers that may be considered demanding.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the Pass Labs INT-25 require any special considerations for setup or maintenance?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Pass Labs INT-25 Integrated Amplifier is designed to be user-friendly and relatively straightforward to set up. It does not require bias adjustments, as it is a self-biasing Class A design. However, users should ensure proper ventilation for optimal performance, as Class A amplifiers can generate heat. Adequate ventilation will help maintain the amplifier's performance and longevity. Additionally, it is recommended to provide sufficient space around the amplifier for airflow and to follow Pass Labs' guidelines for safe and optimal operation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWho is Nelson Pass?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNelson Pass, the man behind Pass Labs and First Watt, has been designing and building amplifiers for decades. His early passion, however, was speakers; at age 14, he started assembling loudspeakers. As a college student studying physics at the University of California-Davis, he co-founded a speaker company called PMA. He also worked for ESS, where he designed crossovers and enclosures. After college, with his interest having shifted toward amplifiers, Pass co-founded Threshold Electronics (now Threshold Audio). His achievements during the Threshold years include developing the first dynamically biased Class A amplifier circuit; developing a fully cascode audio power amplifier; and developing the STASIS stereo preamplifier and power amplifier. During the 1980s, Pass designed the Adcom GFA-555 amplifier. Later, after selling Threshold, he started Pass Labs in 1991 and First Watt in 1997. Pass holds several patents related to audio circuits.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow did Pass Labs make its name?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePass Labs helped popularize solid-state, Class A power amplifiers. Pass Labs' first product, the Aleph 0 amplifier, operated as a single-ended Class A up to its 70-watt rating and in push-pull Class A at higher wattage. The Aleph series of amplifiers, some of the first solid-state amps that were said to be \"tube-like\" in sound, operated pure class A and contained internal circuitry using MOSFETs. The Aleph amplifiers had a unique appearance, a cube with heat sinks on all four sides, a solution to the heat generated by the class-A design. This can be attributed primarily to the specific MOSFETs used and the minimum number of gain stages that were implemented in the design. Pass Labs also developed the Super-Symmetry™ (\"Su-Sy\") circuit, which achieves exceptionally low distortion and noise levels. In 1998, Pass Labs released the X1000, the first amplifier using the patented SuperSymmetric™ topology. The X1000 achieved 1000 watts with high performance, local feedback, and only two gain stages: a cascaded differential pair of transistors and a large bank of complementary output followers. This groundbreaking design informed all subsequent Pass Labs amplifiers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat else does Pass Labs make?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn 2002, Pass Labs unveiled the first XA amplifiers, combining the X and Aleph topologies into balanced single-ended Class A amplifiers with many of the characteristics of both the X and Aleph series. The current Pass Labs lineup includes Class A amps (XA and Xs Series), Class AB amps (.8 Series), line preamps (Xs and XP Series), phono preamps (Xs and XP Series), integrated amps (INT Series), and one headphone amp.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the relationship between Pass Labs and First Watt?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"ql-cursor\"\u003e \u003c\/span\u003eWhen he started Pass Labs, Pass did everything out of his home. In 1997, having outgrown the space, Pass Labs moved into commercial space in Foresthill, California. When Pass started First Watt, it was a \"kitchen table\" venture, with work once again happening in his home. In 2016, with production demands not leaving him enough time to pursue the vast array of yet-to-be-designed amps, Nelson handed the business end of First Watt over to Pass Labs. Pass Labs took over the building of First Watt amplifiers as well as marketing and distribution. There's a synergy between the two operations, in that Pass Labs gets to gather up some of the more interesting First Watt finds and repurpose them as more commercially viable designs. Today, Pass splits his time between First Watt and Pass Laboratories.\u003c\/p\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv class=\"builder-block builder-e56b971f49ae4371b47f64fc888a774a css-ur9nhf\" builder-id=\"builder-e56b971f49ae4371b47f64fc888a774a\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cstyle data-emotion-css=\"96q1si\"\u003e\u003c\/style\u003e\n\u003cdiv class=\"builder-block builder-f9fc19b209fc4e4f8c320278879aacd2 builder-has-component css-96q1si\" builder-id=\"builder-f9fc19b209fc4e4f8c320278879aacd2\"\u003e\u003c\/div\u003e\n\u003cstyle data-emotion-css=\"1b1xpof\"\u003e\u003c\/style\u003e\n\u003cdiv class=\"builder-block builder-6db56d140ed9484d9eac8e5ed1883ab0 css-1b1xpof\" builder-id=\"builder-6db56d140ed9484d9eac8e5ed1883ab0\"\u003e\u003c\/div\u003e\n\u003cstyle data-emotion-css=\"1n465md\"\u003e\u003c\/style\u003e\n\u003cimg src=\"https:\/\/cdn.builder.io\/api\/v1\/pixel?apiKey=48d1cdcd52ec4d289f1ef8c4f75da167\" aria-hidden=\"true\" alt=\"\" role=\"presentation\" width=\"0\" height=\"0\" class=\"builder-block builder-pixel-dn4w6xew8a css-1n465md\" builder-id=\"builder-pixel-dn4w6xew8a\"\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/builder-component\u003e\n\u003cscript async src=\"https:\/\/cdn.builder.io\/js\/webcomponents\"\u003e\u003c\/script\u003e","brand":"Pass Labs","offers":[{"title":"Silver","offer_id":48348302999866,"sku":"Pass_INT-25-SI","price":8360.0,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":51919910240570,"sku":"Pass_INT-25-BL","price":8860.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0834\/0245\/7402\/files\/pass-labs-int-25_01__40525.1687899644.1280.1280.jpg?v=1719249754","url":"https:\/\/www.moon-audio.pro\/products\/pass-labs-int-25-amplifier","provider":"Moon Audio","version":"1.0","type":"link"}