{"product_id":"digital-multi-channel-amplifier-250w-x-4-channels-70v","title":"Digital multi-channel amplifier (250W X 4 channels 70V)","description":"\u003ch3 class=\"sherpa-inner-border\"\u003eDescription\u003c\/h3\u003e\r\n\u003cp\u003e\u003cspan\u003eThe DA-250FH is a 4-Channel Digital Power Amplifier designed for 70 V line high-impedance distribution and features lightweight, compact, high power output, and high efficiency. It delivers 250 W x 4 channels (19.6 Ω output) using a switching power supply. Each channel is equipped with an independent power section. It can be electrically isolated from the high-impedance speaker system by attaching the MT-251H Output Transformer (optional). It can be mounted in an EIA Standard equipment rack (1 unit size)\u003c\/span\u003e\u003c\/p\u003e\r\n\u003ctable id=\"spectable\"\u003e\u003ccaption\u003eSpecification\u003c\/caption\u003e\u003c\/table\u003e\r\n\u003cdl\u003e\u003cdd\u003e*0 dB = 0.775 V\u003c\/dd\u003e\u003c\/dl\u003e\r\n\u003ctable id=\"spectable\"\u003e\r\n\u003ctbody\u003e\r\n\u003ctr\u003e\n\u003cth\u003ePower Source\u003c\/th\u003e\r\n\u003ctd\u003e120 V AC, 50\/60 Hz\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003cth\u003eAmplification System\u003c\/th\u003e\r\n\u003ctd\u003eClass D\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003cth\u003ePower Consumption\u003c\/th\u003e\r\n\u003ctd\u003e200 W (based on UL\/CSA standards)\u003cbr\u003e1200 W (rated output 70 V line, 19.6 Ω × 4)\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003cth\u003eInput\u003c\/th\u003e\r\n\u003ctd\u003e4 circuits, +4 dB* (1.23 V) (input level control in maximum position),\u003cbr\u003e10 kΩ, electronically-balanced, removable terminal block (3 pins)\u003cbr\u003eCH 1 mode ON\/OFF switch (ON: CH 1 to All ch, OFF: Each ch)\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003cth\u003eRated Output\u003c\/th\u003e\r\n\u003ctd\u003e4 channels: 250 W × 4 (70 V line, 19.6 Ω)\u003cbr\u003e2 channels (BRIDGE): 500 W × 2 (140 V line, 39.2 Ω)\u003cbr\u003eM4 screw terminal, distance between barriers: 8.8 mm\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003cth\u003eFrequency Response\u003c\/th\u003e\r\n\u003ctd\u003e20 - 20,000 Hz (±1 dB): HPF OFF\/50 - 20,000 Hz (-3 dB, +1 dB): HPF ON\u003cbr\u003e(selectable with the inner jumper)\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003cth\u003eTotal Harmonic Distortion\u003c\/th\u003e\r\n\u003ctd\u003e0.1% (1 kHz), 0.3% (20 - 20,000Hz): HPF OFF\u003cbr\u003e0.1% (1 kHz), 0.3% (100 - 20,000 Hz): HPF ON\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003cth\u003eProtection Circuit\u003c\/th\u003e\r\n\u003ctd\u003eProtection against excessive current flow due to overload,\u003cbr\u003eshort circuit, unusual DC voltage output,\u003cbr\u003etemperature rise at power amp. heat sink (110℃ or more),\u003cbr\u003etemperature rise inside the unit (80℃ or more)\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003cth\u003eS\/N Ratio\u003c\/th\u003e\r\n\u003ctd\u003e100 dB (A-weighted)\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003cth\u003eCrosstalk\u003c\/th\u003e\r\n\u003ctd\u003e70 dB (A-weighted)\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003cth\u003eLED Indicator\u003c\/th\u003e\r\n\u003ctd\u003ePower (blue) × 1, Input (green) × 4, Output (yellow) × 4,\u003cbr\u003ePeak (red) × 4, Protect (red) × 4\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003cth\u003eCooling\u003c\/th\u003e\r\n\u003ctd\u003eForced air cooling\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003cth\u003eOperating Temperature\u003c\/th\u003e\r\n\u003ctd\u003e-10℃ to +40℃\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003cth\u003eOperating Humidity\u003c\/th\u003e\r\n\u003ctd\u003e90% RH or less (no condensation)\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\r\n\u003ctd\u003ePanel: Aluminum, black, alumite Case: Plated steel sheet\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\r\n\u003ctd\u003e482 (W) × 44 (H) × 401.8 (D) mm\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\r\n\u003ctd\u003e6.6 kg\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003cth\u003eAccessory\u003c\/th\u003e\r\n\u003ctd\u003ePower cord (2 m) …1, Removable terminal plug (3 pins) …4,\u003cbr\u003eTamper-proof cap …4\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003cth\u003eOption\u003c\/th\u003e\r\n\u003ctd\u003eMatching transformer: MT-251H\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003c\/tbody\u003e\r\n\u003c\/table\u003e","brand":"TOA","offers":[{"title":"Default Title","offer_id":43138987327536,"sku":"TO-DA-250FH CU A00","price":2291.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0681\/8280\/2480\/files\/da-250fh_front_and_back_web_1.jpg?v=1780054656","url":"https:\/\/avguys.ca\/products\/digital-multi-channel-amplifier-250w-x-4-channels-70v","provider":"The AV Guys","version":"1.0","type":"link"}