{"product_id":"phasemation-ea-550-mono-phono-eq-amplifier-pair","title":"Phasemation EA-550 Mono Phono EQ Amplifier (Pair)","description":"\u003ch1\u003ePhasemation EA-550 Phono Amplifier (Dual-Chassis \/ Separate Unit)\u003c\/h1\u003e\n\u003ch3\u003eAll-stage symmetrical non-feedback phonostage in two monaural boxes, with balanced inputs, split chassis, and refined MC transformer\u003c\/h3\u003e\n\u003cp\u003eFor the EA-550, Phasemation pushes the dual-mono idea to the logical conclusion by having two separate units for each channel. It is a fully discrete, all-stage symmetrical non-feedback phonostage, and its construction and circuitry aim to reveal the fullest realism, dynamics, and expressive nuance from vinyl playback.\u003c\/p\u003e\n\u003cp\u003eThe chassis design features a 10 mm thick slanted aluminum front panel, 1.6 mm copper-plated steel base and cover, and heavy metal feet to suppress vibration and magnetic distortion. Each channel has its own rigid housing and power supply. A newly designed built-in MC transformer with split winding uses PC-TripleC copper for the secondary winding, aimed at improving signal integrity.\u003c\/p\u003e\n\u003cp\u003eOn the functional side, it provides three input terminals (MM\/MC switching for each), with Inputs 1 and 2 supporting balanced (XLR) input. A 2nd-order (two-stage) CR low-cut filter is included to suppress subsonic noise and protect speaker motion. Users can switch between three playback curves (RIAA stereo, DECCA Mono, and Columbia Mono. A 30-second degauss circuit demagnetizes MC cartridges with metal cores.\u003c\/p\u003e\n\u003cp\u003eThe EA-550 has been awarded multiple honors including the Ongen Publishing Audio Excellence Award 2020 (Gold \u0026amp; Silver), MJ Technology of the Year 2019 (Honorable Mention), and Stereo magazine Best Buy Components 2020 (Phono equalizer over ¥500,000, 3rd place).\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDual-chassis, monaural boxed design with independent L\/R units\u003c\/li\u003e\n\u003cli\u003eBuilt-in MC transformer with split winding, using PC-TripleC copper on secondary\u003c\/li\u003e\n\u003cli\u003eThree inputs, with MM\/MC switching for each; Inputs 1 \u0026amp; 2 support balanced (XLR) operation\u003c\/li\u003e\n\u003cli\u003e2nd-order CR low-cut filter (non-feedback) to attenuate subsonics without degrading music\u003c\/li\u003e\n\u003cli\u003ePlayback curve switching: RIAA (stereo), Mono1 (DECCA), Mono2 (Columbia)\u003c\/li\u003e\n\u003cli\u003eDegauss circuit (~30 s) for MC cartridges with metal cores\u003c\/li\u003e\n\u003cli\u003eRIAA network: 1% metal-film resistors and silvered mica capacitors\u003c\/li\u003e\n\u003cli\u003eSignal path: ELNA SILMIC electrolytic capacitors, metal-film resistors\u003c\/li\u003e\n\u003cli\u003ePower circuit: Rohm SiC diodes, Nichicon high-grade electrolytics, ELNA SILMIC II decoupling caps\u003c\/li\u003e\n\u003cli\u003eLow-noise Zener diodes and shunt regulators (no feedback) for fast, ultra-low noise power\u003c\/li\u003e\n\u003cli\u003eFour R-core transformers (positive\/negative for each channel) with low leakage flux\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eForm:\u003c\/strong\u003e V-I \/ I-V conversion type full symmetrical non-feedback equalizing amplifier\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInputs:\u003c\/strong\u003e MM, MC\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInput Sensitivity (MM\/MC):\u003c\/strong\u003e 2.5 mV, 0.13 mV\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSuitable Cartridge Output Impedance (MM\/MC):\u003c\/strong\u003e 47 kΩ or less; 1.5 to 40 Ω\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGain (MM\/MC):\u003c\/strong\u003e 38 dB, 64 dB\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInput Equivalent S\/N Ratio (MM\/MC):\u003c\/strong\u003e −120 dBV, −140 dBV\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRated Output Voltage (1 kHz):\u003c\/strong\u003e 200 mV\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRIAA Curve Tolerance (20 Hz–20 kHz):\u003c\/strong\u003e ±0.5 dB\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePower Consumption:\u003c\/strong\u003e 10 W (per channel, 100 V 50-60 Hz)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions (Each, WHD):\u003c\/strong\u003e 8.31\" x 3.66\" x 14.17\" (211 x 93 x 360 mm) \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWeight (Each):\u003c\/strong\u003e 12.1 lb. (5.5 kg) \u003c\/p\u003e","brand":"Phasemation","offers":[{"title":"Default Title","offer_id":51836579971256,"sku":"EA-550","price":8575.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1564\/1247\/files\/EA_550_front_rgb.png?v=1763667485","url":"https:\/\/upscaleaudio.pro\/products\/phasemation-ea-550-mono-phono-eq-amplifier-pair","provider":"Upscale Audio","version":"1.0","type":"link"}