{"product_id":"parasound-zonemaster-250-universal-2-channel-4-speaker-sub-amp","title":"Parasound Zonemaster 250 - Universal 2 Channel 4 Speaker \u0026 Sub Amp","description":"• ZoneMaster models are very similar in their feature sets, differing mainly in size and number of channels. \u003cbr\u003e\nLooking for more channels? Try the 1250, 650, or 450.\u003cbr\u003e\n•Universal amplifier for applications from 50 to 200 watts\u003cbr\u003e\n•4 speaker connections (A and B outputs for both channels)\u003cbr\u003e\n•High current for stable operation at 2 Ohms\u003cbr\u003e\n•Channel pairs are bridgeable for up to 200 watts @ 4 Ohms\u003cbr\u003e\n•Class AB input stage plus premium Class D power stage\u003cbr\u003e\n•One Independent audio sensing trigger\u003cbr\u003e\n•One Independent 12 volt trigger input\u003cbr\u003e\n•Looping 12 volt trigger output for one zone\u003cbr\u003e\n•Speaker level input for expanding systems w\/out pre out jacks\u003cbr\u003e\n•One bus input can be routed to any zone\u003cbr\u003e\n•Looping output to connect additional amplifiers\u003cbr\u003e\n•Mono mode combines L and R for single speaker applications\u003cbr\u003e\n•Separate level controls for both channels\u003cbr\u003e\n•Detachable speaker connectors accept up to 12 gauge wire\u003cbr\u003e\n•Short circuit and overheat protection with front panel indicators\u003cbr\u003e\n•0.5 watt standby power consumption meets Energy Star \u0026amp; EU specs\u003cbr\u003e\u003cbr\u003e\n\nZoneMaster 250 Specific Features:-\u003cbr\u003e\n\n•Compact 1u, 1\/2 width chassis size\u003cbr\u003e\n•Rack mount kit sold separately (click to view)\u003cbr\u003e\n•Full Range Mono RCA Output\u003cbr\u003e\n•80Hz low pass Mono RCA output (for sub)\u003cbr\u003e\n•Built in 80Hz low pass filter in bridged mode for driving in-wall\/in-ceiling woofers or passive sub(s)\u003cbr\u003e\u003cbr\u003e\n\nTechnical Specifications:-\u003cbr\u003e\n\nPower Output:\u003cbr\u003e\nRMS, All Channels Driven (20 Hz - 20 kHz) \u003cbr\u003e\n50 watts x 2 @ 8Ω \u003cbr\u003e\n90 watts x 2 @ 4Ω or 2Ω \u003cbr\u003e\n160 watts x 1 @ 8Ω (Bridged)\u003cbr\u003e \n200 watts x 1 @ 4Ω (Bridged)\u003cbr\u003e\u003cbr\u003e\n \nFrequency Response: \n10 Hz - 60 kHz, +0\/-3 dB\u003cbr\u003e\u003cbr\u003e\n\n \nTotal Harmonic Distortion: \nLess than 0.05% at typical listening levels \u003cbr\u003e\nLess than 1.0% at full power\u003cbr\u003e\u003cbr\u003e\n \nInterchannel Crosstalk: \n70 dB at 20 kHz\u003cbr\u003e\u003cbr\u003e\n \nInput Sensitivity: \n700mv = Full output (50 Watts @ 8 Ω)\u003cbr\u003e \nTotal Gain = 29 dB (Level controls set to Maximum)\u003cbr\u003e\u003cbr\u003e\n \nS\/N Ratio: \nGreater than 112 dB, input shorted, IHF A-weighted\u003cbr\u003e\u003cbr\u003e\n \nDC Trigger Requirements:\nPlus 9 Vdc to +12 Vdc, 2 mA\u003cbr\u003e\u003cbr\u003e\n \nAudio Trigger Requirements: \n2 mV Audio Signal\u003cbr\u003e\u003cbr\u003e\n\nAC Power Requirement:\u003cbr\u003e  \n250 Watts Maximum \u003cbr\u003e\n15 Watts Typical \u003cbr\u003e\n7.5 Watts Idle \u003cbr\u003e\n0.5 Watts Standby \u003cbr\u003e\n110-130 VAC 60 Hz or 220-255 VAC 50 Hz \u003cbr\u003e\nNote: AC mains voltage is set only by qualified electronics technician.\u003cbr\u003e\u003cbr\u003e\n \nDimensions:  \u003cbr\u003e\nWidth: 8.5\" (220 mm) \u003cbr\u003e\nDepth: 10\" (254 mm)\u003cbr\u003e\nHeight, with feet: 2\" (51 mm) \u003cbr\u003e\nHeight, without feet: 1.75\" (45 mm), 1U\u003cbr\u003e\u003cbr\u003e\n \nWeight: \u003cbr\u003e \n Net: 4.0 lbs (1.8kg) \u003cbr\u003e\n Shipping: 7 lbs (3.1kg)\n","brand":"Parasound","offers":[{"title":"Default Title","offer_id":57412855693644,"sku":"PARASOUNDZM250","price":416.63,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/6891\/2204\/files\/Parasound-zonemaster-250.jpg?v=1777537415","url":"https:\/\/www.stoneaudio.co.uk\/products\/parasound-zonemaster-250-universal-2-channel-4-speaker-sub-amp","provider":"Stone Audio","version":"1.0","type":"link"}