{"product_id":"atc-scm20asl-active-bookshelf-speakers","title":"ATC SCM20ASL Active Bookshelf Speakers","description":"\u003ch2\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e150mm\/6\" ATC 'Super Linear mid\/bass driver loaded in a compact sealed cabinet.\u003c\/li\u003e\n\u003cli\u003e25mm\/1\" ATC 'S-Spec' soft-dome dual-suspension HF driver.\u003c\/li\u003e\n\u003cli\u003eOn-board ATC active 250W 'Amp Pack' module.\u003c\/li\u003e\n\u003cli\u003eBalanced input \u0026amp; 2nd order Linkwitz-Riley active crossovers.\u003c\/li\u003e\n\u003cli\u003eUser adjustable input sensitivity \u0026amp; bass shelf controls.\u003c\/li\u003e\n\u003cli\u003e2 x class A\/B MOSFET amplifiers, 200W bass\/mid \u0026amp; 50W high frequency.\u003c\/li\u003e\n\u003cli\u003eHand-built in England.\u003c\/li\u003e\n\u003cli\u003e6-year warranty.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe active SCM20ASL is equipped with an integrated 250W Amp Pack, ready to pair with a high-quality pre-amplifier, DAC\/pre, or streaming pre-amp for exceptional performance.\u003c\/p\u003e\n\u003cp\u003eInstead of relying on a passive crossover and an external power amplifier, the SCM20ASL uses a precisely matched Amp Pack mounted on the rear of the cabinet. Its electronic architecture features a balanced input feeding a 2nd-order active crossover, which then drives two dedicated Class A\/B power amplifiers—each optimized for the mid\/bass and high-frequency drivers.\u003c\/p\u003e\n\u003cp\u003eThis active approach ensures improved accuracy in level and timing, while the direct coupling of the amplifiers to the drive units delivers superior control and greater dynamic range compared to a traditional passive design.\u003c\/p\u003e\n\u003cp\u003eThe cabinet is engineered for rigidity and low resonance, combining internal bracing with damping materials to suppress vibration. Bitumastic panels are strategically applied to further minimize coloration, and the speaker is available in a range of premium finishes.\u003c\/p\u003e\n\u003ch2\u003eAcoustic Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eMid\/Bass driver\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e1 x 150mm\/6\", SB75-150SL 8Ω\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eHigh Frequency Driver\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e4 - 92,000 Hz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003ePower Consumption in Standby\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e1 x 25mm\/1\", SH25-76S 6Ω\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eLow Frequency Cut-off\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e55Hz (-6dB, anechoic)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eHigh Frequency Cut-off\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e25kHz (-6dB) Matched Response: +\/-0.5dB Crossover Point: 2.2kHz MaxSPL: 108dB continuous, 114dB peak (per pair, IEC Weighted Pink Noise, 1m, anechoic)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eSystem Sensitivity\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e85dBC SPL (@1m, pink noise, -18dBu, 1V input sens. 0dB bass boost)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eElectronic Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eBalanced Input\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e1 x Rear Panel Mounted Female XLR, pin 2 hot Input Impedance: 20kΩ (differential)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eInput CMRR\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e\u0026gt;60dB at (10kHz)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eInput Sensitivity\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e2.2dBu\/1Vrms for full power Input Sensitivity Control: -6dB switchable, -6dB variable. Total adjustment 2.2dBu\/1Vrms to 14.2dBu\/4Vrms\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eBass Shelf\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e-2dB to +3dB, switchable in 1dB steps Crossover Filters: 2nd Order Linkwitz Riley\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eAmplifier type\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eGrounded Source MOSFET, class A\/B, convection cooled\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eOutput Power\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eBass 200W (8Ω), H.F. 50W (8Ω) THD+N: \u0026lt;0.0017% \/-95dB (1kHz, 1dB below rated power, 90kHz BW) Frequency Response: \u0026lt;2Hz to\u0026gt;200kHz (-3dB)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eLimiter\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e ATC Active FET Momentary Gain Reduction\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eElectronic amp protection\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eAmplifier d.c. offset and over-temperature (both indicated by rear panel LED) Mains Input: 220-230V or 115V, factory set. Please observe panel markings and labels!\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003ePower Consumption\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eIdle 26W\/41VA. \u003csup\u003e1\u003c\/sup\u003e\/\u003csub\u003e8\u003c\/sub\u003eth Power 116W\/116VA. Full Power 312W\/398VA\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eHeat Output\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eIdle 89BTU\/hr, \u003csup\u003e1\u003c\/sup\u003e\/\u003csub\u003e8\u003c\/sub\u003eth Power 311BTU\/hr, Full Power 382BTU\/hr\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003ePhysical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eNet Weight\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e24.3kgs\/53.6lbs\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eDimensions\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eHxWxD 450x250x411mm 17 \u003csup\u003e11\u003c\/sup\u003e\/\u003csub\u003e16\u003c\/sub\u003e\" x 9 \u003csup\u003e13\u003c\/sup\u003e\/\u003csub\u003e16\u003c\/sub\u003e\" x 16 \u003csup\u003e3\u003c\/sup\u003e\/\u003csub\u003e16\u003c\/sub\u003e\"\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"The Music Room","offers":[{"title":"Black Ash Natural","offer_id":51896953667865,"sku":"3567newATC-006","price":10999.0,"currency_code":"USD","in_stock":true},{"title":"Black Satin Natural","offer_id":51896953700633,"sku":"3567newATC-001","price":10999.0,"currency_code":"USD","in_stock":true},{"title":"Cherry Natural","offer_id":51896953766169,"sku":"3567newATC-002","price":10999.0,"currency_code":"USD","in_stock":true},{"title":"Oak Natural","offer_id":51896953831705,"sku":"3567newATC-004","price":10999.0,"currency_code":"USD","in_stock":true},{"title":"Walnut Natural","offer_id":51896953962777,"sku":"3567newATC-003","price":10999.0,"currency_code":"USD","in_stock":true},{"title":"White Satin Natural","offer_id":51896953995545,"sku":"3567newATC-005","price":10999.0,"currency_code":"USD","in_stock":true},{"title":"Piano Black","offer_id":51896953864473,"sku":"3567newATC-007","price":16499.0,"currency_code":"USD","in_stock":true},{"title":"Piano White","offer_id":51896953897241,"sku":"3567newATC-011","price":16499.0,"currency_code":"USD","in_stock":true},{"title":"Walnut Gloss","offer_id":51896953930009,"sku":"3567newATC-009","price":13499.0,"currency_code":"USD","in_stock":true},{"title":"Oak Gloss","offer_id":51896953798937,"sku":"3567newATC-010","price":13499.0,"currency_code":"USD","in_stock":true},{"title":"Cherry Gloss","offer_id":51896953733401,"sku":"3567newATC-008","price":13499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0844\/4225\/1545\/files\/ATC_SCM20ASL_Active_Monitor_Speakers_oak.jpg?v=1771255201","url":"https:\/\/tmraudio.com\/products\/atc-scm20asl-active-bookshelf-speakers","provider":"The Music Room","version":"1.0","type":"link"}