{"product_id":"mcintosh-ma252-2-channel-integrated-amplifier","title":"McIntosh MA252 2-Channel Integrated Amplifier","description":"\u003ch1\u003eMcIntosh MA252 2-Channel Integrated Amplifier\u003c\/h1\u003e\n\u003ch3\u003eHybrid integrated amplifier with a vacuum tube preamplifier, direct-coupled solid-state output stage, and 100 Wpc into 8 ohms\u003c\/h3\u003e\n\u003cp\u003eThe McIntosh MA252 is a hybrid integrated amplifier combining a vacuum tube preamplifier with a direct-coupled solid-state power amplifier. Its preamp stage uses two 12AX7A and two 12AT7 tubes, while the transistor output stage delivers 100 Wpc into 8-ohm loudspeakers and 160 Wpc into 4-ohm loads.\u003c\/p\u003e\n\u003cp\u003eThe MA252 is an entirely analog design with four inputs: one balanced, two unbalanced, and one Moving Magnet phono input. A full-range mono subwoofer output allows a powered subwoofer to be added without requiring an external crossover or additional preamplifier output.\u003c\/p\u003e\n\u003cp\u003eThe exposed vacuum tubes sit in protective cages above the polished stainless-steel chassis, giving the MA252 a layout that takes visual cues from McIntosh’s MC275 tube amplifier. McIntosh Monogrammed Heatsinks are connected to the high-current output transistors, allowing the solid-state output stage to reach normal operating condition without the warm-up time associated with vacuum tube power stages.\u003c\/p\u003e\n\u003cp\u003ePower Guard monitors the output signal and makes real-time adjustments to the input when necessary to prevent clipping. If Power Guard activates, the two vacuum tubes associated with the affected channel flash amber and return to their normal green illumination once clipping has stopped.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003ch4\u003eHybrid Drive Design\u003c\/h4\u003e\n\u003cp\u003eThe MA252 combines a vacuum tube preamplifier with a direct-coupled solid-state power amplifier, using two 12AX7A and two 12AT7 tubes in the preamp section.\u003c\/p\u003e\n\n\u003ch4\u003e100 Wpc Into 8 Ohms\u003c\/h4\u003e\n\u003cp\u003eThe solid-state output stage delivers 100 Wpc into 8-ohm loudspeakers and 160 Wpc into 4-ohm loads.\u003c\/p\u003e\n\n\u003ch4\u003eAll-Analog Connectivity\u003c\/h4\u003e\n\u003cp\u003eFour analog inputs include one balanced, two unbalanced, and one Moving Magnet phono input, keeping the MA252 focused on analog source components.\u003c\/p\u003e\n\n\u003ch4\u003eMoving Magnet Phonostage\u003c\/h4\u003e\n\u003cp\u003eA dedicated Moving Magnet phono input allows a compatible turntable to connect directly to the amplifier without requiring an external phonostage.\u003c\/p\u003e\n\n\u003ch4\u003ePower Guard\u003c\/h4\u003e\n\u003cp\u003ePower Guard monitors the output signal for overdrive and dynamically adjusts the input level when necessary to prevent clipping and potential loudspeaker damage.\u003c\/p\u003e\n\n\u003ch4\u003eSentry Monitor\u003c\/h4\u003e\n\u003cp\u003eSentry Monitor provides fuse-less short-circuit protection, disengaging the output stage before current exceeds safe operating limits and automatically restoring operation when conditions return to normal.\u003c\/p\u003e\n\n\u003ch4\u003eMonogrammed Heatsinks\u003c\/h4\u003e\n\u003cp\u003eMcIntosh Monogrammed Heatsinks are connected to the high-current output transistors to provide efficient thermal management and eliminate the typical warm-up period of a solid-state output stage.\u003c\/p\u003e\n\n\u003ch4\u003eSubwoofer Output\u003c\/h4\u003e\n\u003cp\u003eA full-range mono output provides a straightforward connection for a powered subwoofer.\u003c\/p\u003e\n\n\u003ch4\u003eHigh Drive Headphone Amplifier\u003c\/h4\u003e\n\u003cp\u003eThe front-panel 1\/4\" High Drive headphone output provides dedicated amplification for headphone listening.\u003c\/p\u003e\n\n\u003ch4\u003eBass and Treble Controls\u003c\/h4\u003e\n\u003cp\u003eIndependent bass and treble controls allow tonal adjustment for recordings, loudspeakers, or personal preference and can be bypassed when not required.\u003c\/p\u003e\n\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMcIntosh MA252 2-Channel Integrated Amplifier\u003c\/li\u003e\n\u003cli\u003eRemote control\u003c\/li\u003e\n\u003cli\u003eAC power cord\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eType:\u003c\/b\u003e Hybrid integrated amplifier\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eChannels:\u003c\/b\u003e 2\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePreamplifier:\u003c\/b\u003e Vacuum tube\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePower Amplifier:\u003c\/b\u003e Solid state\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eVacuum Tubes:\u003c\/b\u003e 2 × 12AX7A, 2 × 12AT7\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePower Output:\u003c\/b\u003e 100 Wpc into 8 ohms; 160 Wpc into 4 ohms\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eRated Power Band:\u003c\/b\u003e 20 Hz–20 kHz\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFrequency Response:\u003c\/b\u003e 20 Hz–20 kHz, +0\/–0.5 dB; 10 Hz–100 kHz \u003cb\u003e(+0\/–3 dB)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eTotal Harmonic Distortion:\u003c\/b\u003e 0.03%\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDynamic Headroom:\u003c\/b\u003e 1.8 dB\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMoving Magnet Input Sensitivity:\u003c\/b\u003e 3 mV\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHigh-Level Input Sensitivity:\u003c\/b\u003e 0.6 V balanced; 0.3 V unbalanced\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMoving Magnet Signal-to-Noise Ratio:\u003c\/b\u003e 80 dB\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHigh-Level Signal-to-Noise Ratio:\u003c\/b\u003e 97 dB\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eInput Impedance:\u003c\/b\u003e 20 kΩ balanced; 20 kΩ unbalanced\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDamping Factor:\u003c\/b\u003e Greater than 200 into 8 ohms; greater than 100 into 4 ohms\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMaximum Output:\u003c\/b\u003e 8 V unbalanced\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eBalanced Inputs:\u003c\/b\u003e 1\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eUnbalanced Inputs:\u003c\/b\u003e 2\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePhono Inputs:\u003c\/b\u003e 1 Moving Magnet with fixed loading\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSubwoofer Outputs:\u003c\/b\u003e 1 mono\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHeadphone Output:\u003c\/b\u003e 1\/4\" High Drive\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eTone Controls:\u003c\/b\u003e Bass and treble\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eTone Bypass:\u003c\/b\u003e Yes\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eInput Level Matching:\u003c\/b\u003e Yes\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eOutput Type:\u003c\/b\u003e Direct coupled\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eOutput Meters:\u003c\/b\u003e No\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePower Control Outputs:\u003c\/b\u003e 1\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eData Ports:\u003c\/b\u003e 1\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eChassis:\u003c\/b\u003e Polished stainless steel\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePower Requirement:\u003c\/b\u003e 120 V, 50\/60 Hz, 3.7 A\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eStandby Power Consumption:\u003c\/b\u003e Less than 0.5 W\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDimensions (H × W × D):\u003c\/b\u003e 7-5\/8\" × 12\" × 16-1\/2\" (194 × 305 × 419 mm)\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWeight:\u003c\/b\u003e 28 lb. (12.7 kg)\u003c\/p\u003e","brand":"McIntosh Labs","offers":[{"title":"Default Title","offer_id":54132936900792,"sku":"MA252","price":5000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1564\/1247\/files\/MA252_Front_Top_hi_res.jpg?v=1791306719","url":"https:\/\/upscaleaudio.pro\/products\/mcintosh-ma252-2-channel-integrated-amplifier","provider":"Upscale Audio","version":"1.0","type":"link"}