{"product_id":"moon-by-simaudio-compass-461-amplifier","title":"Moon by Simaudio Compass 461 Amplifier. In-Store sales only.","description":"\u003cp\u003eWe at Sunny’s have 2 amplifiers arriving for Demonstration. If you are going to THE SHOW in Costa Mesa, please visit us on the Second floor. The MOON 461 is an analog power Amplifier designed to amplify the signal\u003cbr\u003efrom a preamplifier or other source component with absolute accuracy. As the most powerful\u003cbr\u003emodel in the Compass Collection, it is engineered to deliver high current capability,\u003cbr\u003elow distortion, and stable performance across a wide range of loudspeaker loads.\u003cbr\u003eIts design is centered on preserving the integrity of the incoming signal while maintaining\u003cbr\u003etransparency, dynamic expression, and composure under demanding conditions.\u003c\/p\u003e\n\u003cp\u003eThe 461 stands as the most powerful Amplifier\u003cbr\u003ein the Compass Collection and pairs naturally\u003cbr\u003ewith the MOON 491 network player\/preamplifier\u003cbr\u003eto deliver the highest level of system performance\u003cbr\u003ein the Collection. Its purpose is clear: to provide substantial\u003cbr\u003eoutput capability, strong channel separation, and low-distortion amplification in a compact, elegant chassis.\u003cbr\u003eThe result is an Amplifier designed for systems that demand\u003cbr\u003eboth refinement and headroom, achieved through\u003cbr\u003ea focused, efficient, and thoughtfully engineered design.\u003cbr\u003eA continuous pursuit of absolute accuracy, transparency, and dynamic\u003c\/p\u003e\n\u003cp\u003ecapability drives the design philosophy of the 461. Rather than imparting a sonic signature,\u003cbr\u003ethe Amplifier is engineered to maintain signal fidelity,\u003cbr\u003epreserving low-level detail, harmonic structure, and linearity\u003cbr\u003eacross the entire frequency spectrum. From delicate\u003cbr\u003epassages to large-scale transients, the 461 maintains\u003cbr\u003econsistent performance without compression or strain.\u003cbr\u003eMOON Distortion-Canceling Amplifier (MDCA),\u003cbr\u003erepresents the latest evolution of more than four decades\u003cbr\u003eof research and development in high-performance analog\u003cbr\u003eAmplifier design. While it is not derived from previous\u003cbr\u003etopology, this Class AB amplification technology reflects\u003cbr\u003ethe cumulative knowledge gained through numerous\u003cbr\u003eaward-winning MOON Amplifier designs. MDCA operates\u003cbr\u003eon a fundamentally different principle than traditional\u003cbr\u003efeedback-based amplifiers, aiming to eliminate distortion\u003cbr\u003eand coloration without placing corrective circuitry directly\u003cbr\u003ein the audio signal path. Instead, the MDCA circuit\u003cbr\u003ecompares the input signal to the amplified output\u003cbr\u003ein real time, isolates the generated noise and minute,\u003cbr\u003enon-linear errors, and injects a precise correction signal\u003cbr\u003edirectly into the output stage. Because this error correction\u003cbr\u003eprocess takes place outside of the main signal path,\u003cbr\u003edistortion is reduced more efficiently while simultaneously\u003cbr\u003elowering output impedance and improving the damping factor.\u003cbr\u003eThe design is fully DC-coupled and naturally rejects\u003cbr\u003eunwanted DC without the need for a servo circuit,\u003cbr\u003eand delivers wider bandwidth, lower noise, and significantly\u003cbr\u003ereduced distortion compared with the previous MOON\u003cbr\u003eamplification platforms. The result is an Amplifier\u003cbr\u003ethat combines measurable technical advances with greater\u003cbr\u003eclarity, control, and musicality.\u003cbr\u003eThe Amplifier uses two proprietary MOON Hybrid Power\u003cbr\u003esupply modules (MHP), one dedicated to each channel.\u003cbr\u003eMHP is a proprietary power supply architecture designed\u003cbr\u003eto deliver a stable, low-noise, and high-current energy\u003cbr\u003esource to the Amplifier under all operating conditions.\u003cbr\u003eAt its front end, a high-performance Power Factor\u003cbr\u003eThe correction (PFC) stage actively converts the AC mains\u003cbr\u003eto a high-voltage DC rail of 400 V. This high-voltage rail\u003cbr\u003efeeds a high-frequency LLC resonant converter operating \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eOutput Power (Stereo 8 Ω): 150 W\u003cbr\u003eOutput Power (Stereo 4 Ω): 300 W\u003cbr\u003eOutput Power (Mono 8 Ω): 450 W\u003cbr\u003eInput Sensitivity: 1 V\u003cbr\u003eInput Impedance: 22 kΩ\u003cbr\u003eGain: 31 dB\u003cbr\u003eFrequency Response: 5 Hz – 100 kHz +0\/-3 dB\u003cbr\u003eTotal Harmonic Distortion + Noise (@ 1 W) : 0.005%\u003cbr\u003eTotal Harmonic Distortion + Noise (@ 150 W) : 0.003%\u003cbr\u003eIntermodulation Distortion: 0.005%\u003cbr\u003eSignal-to-Noise Ratio: 114 dB\u003cbr\u003eCrosstalk : –114 dB\u003cbr\u003eDamping Factor: 425\u003cbr\u003ePower Consumption (Idle): 35 W\u003cbr\u003ePower Consumption (Full Power Standby): 34 W\u003cbr\u003ePower Consumption (Low Power Standby): 1 W\u003cbr\u003eDimensions (width x height x depth) : 16.9x3.5x14.5 in \/ 42.9x8.7x36.8 cm\u003cbr\u003eShipping Weight: 24 lbs \/ 11 kg\u003cbr\u003e\u003c\/p\u003e","brand":"Simaudio","offers":[{"title":"Default Title","offer_id":48164079042814,"sku":null,"price":5000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0700\/4156\/7486\/files\/8M5A2164_Landscape_1620x760px.jpg?v=1779472120","url":"https:\/\/sunnyaudiovideo.com\/products\/moon-by-simaudio-compass-461-amplifier","provider":"Sunny Components Inc.","version":"1.0","type":"link"}