{"product_id":"b-grade-48-m20-8-channel-dsp-power-amplifier-8x2500w-2u","title":"*B-GRADE* 48 M20 8-Channel DSP Power Amplifier 8x2500W 2U","description":"\u003cp\u003eLinea’s 48M Series of eight output channel amplifiers are optimised for live sound applications. Offering a unique combination of massive power and peerless audio performance integrated with unique DSP, the 48M Series represents an unmatched advancement in amplifier technology.\u003c\/p\u003e\n\u003cp\u003eSharing the same feature set and form factor as Linea's 44M Series of four channel amplifiers the 48M Series is available in models that develop between 400Watts and 2,500 Watts per channel (up to 2,500 Watts for a bridged pair). Unusually these are not, ‘transient’, ‘burst’ or ‘peak’ power figures, they are the power levels that are delivered by all channels simultaneously even when driven with the same dense program material.\u003c\/p\u003e\n\u003cp\u003eWith Linea amplifiers there is no need to ration power between channels, you can use all the power you have paid for all the time. This has been independently verified.\u003c\/p\u003e\n\u003cp\u003eLinea can do this because state of the art components and a finely optimised design results in an amplifier that is between 7% and 10% more efficient than any competitive product. This efficiency gain directly translates in to the generation of about half the wasted energy (heat) which is clearly significant. In addition to reducing energy costs high efficiency results in generous power reserves ensuring that pristine sound quality is maintained even under the most extreme conditions.\u003c\/p\u003e\n\u003cp\u003eEthernet is used for remote control and monitoring while a front panel, optimised for use in challenging live environments, allows full local control of all features. Control via Linea’s intuitive Podware PC application provides many convenient and time saving features such as very flexible management of presets, and Overlay grouping of Mutes, Gains, Delays and EQ across an entire system.\u003c\/p\u003e\n\u003cp\u003eThe advanced 96kHz DSP is fully integrated into the product and provides an array of unique and genuinely useful features. Because all aspects of the DSP algorithms are designed and hand crafted in house by Linea, they are not available on products from any other manufacturer. For example, LIR linear phase crossover filters which are as easy to use as more conventional filter shapes, and have less latency than FIR filters. Also the powerful VX Limiter suite which sports Peak, RMS and Excursion limiting, as well as multiband limiting for passive 2-way enclosures.\u003c\/p\u003e\n\u003ch2\u003eProduct Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003e*B-GRADE*\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eEight channels of sonically pure Class D amplification\u003c\/li\u003e\n\u003cli\u003eUnique, precise, 96kHz digital signal processing\u003c\/li\u003e\n\u003cli\u003eOver‐designed switch mode power supply\u003c\/li\u003e\n\u003cli\u003e85V to 240V Auto-sensing PSU\u003c\/li\u003e\n\u003cli\u003e3,000 to 20,000 watts RMS total output\u003c\/li\u003e\n\u003cli\u003eFull front panel user interface\u003c\/li\u003e\n\u003cli\u003eEthernet network for system operation and monitoring\u003c\/li\u003e\n\u003cli\u003eAnalogue, AES3 and optional Dante™  \/ AES67 digital network audio\u003c\/li\u003e\n\u003cli\u003ePowerful grouping \u0026amp; multi‐layer EQ\u003c\/li\u003e\n\u003cli\u003eAccepts 48kHz and 96kHz FIR files via System Engineer (certain models)\u003c\/li\u003e\n\u003cli\u003eFully designed and engineered in house by Linea Research\u003c\/li\u003e\n\u003cli\u003eManufactured in the UK\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003ch3\u003eGeneral\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNumber of channels:  Eight\u003c\/li\u003e\n\u003cli\u003eTotal power output, all channels driven:  20,000, 10,000, 6,000 and 3,200 Watts RMS\u003c\/li\u003e\n\u003cli\u003eAudio inputs:  4x Analogue, 2x AES3 and 4x Dante™ \/ AES67 (factory fitted option)\u003c\/li\u003e\n\u003cli\u003eDigital Signal Processing:  High performance DSP processing on all inputs and outputs\u003c\/li\u003e\n\u003cli\u003eControl, monitoring and system status alarms:  \u003c\/li\u003e\n\u003cli\u003eEthernet network\u003c\/li\u003e\n\u003cli\u003eVolt-free relay and contact closure port\u003c\/li\u003e\n\u003cli\u003ePower-save modes:\n\u003cul\u003e\n\u003cli\u003eStandby after user defined time, instant wake up on audio\u003c\/li\u003e\n\u003cli\u003eDeep ECO sleep after user defined time, wake up on command\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eSystem sleep and wakeup:  Front panel switch, network command and audio detection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePower Output\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eModel:  48 Series M20\u003c\/li\u003e\n\u003cli\u003ePower specification:  RMS output power per channel, all channels driven with continuous program material and a nominal ambient temperature of 40ºC \/ 105ºF\u003c\/li\u003e\n\u003cli\u003eCrest Factor of 4 (12dB), 2-Ohm nominal load:  1,500W\u003c\/li\u003e\n\u003cli\u003eCrest Factor of 2.8 (9dB), 4-Ohm nominal load:  2,500W\u003c\/li\u003e\n\u003cli\u003eCrest Factor of 2 (6dB), 8-Ohm nominal load:  1,500W\u003c\/li\u003e\n\u003cli\u003eBridged per channel pair, 4 or 8-Ohm load:  3,000W \/ 5,000W\u003c\/li\u003e\n\u003cli\u003e100V line (CV) operation, Crest Factor 4 (12dB):  2,500W\u003c\/li\u003e\n\u003cli\u003e70V line operation, Crest Factor 4:  1,937W\u003c\/li\u003e\n\u003cli\u003e25V line operation, Crest Factor 4:  625W\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAudio Performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAmplifier topology:  Linea Research high performance Class D\u003c\/li\u003e\n\u003cli\u003eAmplifier modulation scheme:  Low feedback, multiple loop, with feed-forward error correction\u003c\/li\u003e\n\u003cli\u003eDynamic range to amplifier output:  \n\u003cul\u003e\n\u003cli\u003eAnalogue input, better than 113dBA typical\u003c\/li\u003e\n\u003cli\u003eAES \/ Dante™ input, better than 114dBA typical\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eGain (with all DSP level controls set to 0dB):  32dB\u003c\/li\u003e\n\u003cli\u003eFrequency response, 4 Ohm load:  \u0026lt;7Hz to \u0026gt;30kHz, 4 Ohms, -2.5dB points\u003c\/li\u003e\n\u003cli\u003eTotal harmonic distortion, THD:  \u0026lt;0.05% typical, 1kHz signal, AES17 filter, 4 Ohm load\u003c\/li\u003e\n\u003cli\u003eInter-channel crosstalk, worst case combination:  better than -85dBr at 1kHz and -75dBr at 10kHz\u003c\/li\u003e\n\u003cli\u003eMaximum analogue input level:  +20dBu\u003c\/li\u003e\n\u003cli\u003eAnalogue input sensitivity range for full output:  0dBu to +20dBu, continuously adjustable\u003c\/li\u003e\n\u003cli\u003eAnalogue input (four channels):  Input 20k Ohm, electronically balanced, link directly connected to input\u003c\/li\u003e\n\u003cli\u003eAnalogue ground scheme:  AES48 standard compliant\u003c\/li\u003e\n\u003cli\u003eAES3 input (two audio channels):  Transformer isolated with unique active cable equalisation for extended range\u003c\/li\u003e\n\u003cli\u003eAES3 link (two audio channels):  Active AES3 signal regeneration. Automatic direct bypass to the AES3 input ensuring the audio signal will still flow even when the amplifier is powered down\u003c\/li\u003e\n\u003cli\u003eAES3 supported sampling rates:  24kHz to 192kHz (auto locking)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDigital Signal Processing\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eResolution:  40 bit, Linea Research proprietary algorithms\u003c\/li\u003e\n\u003cli\u003eSample rate:  96kHz throughout\u003c\/li\u003e\n\u003cli\u003ePhysical inputs to DSP drive modules:  4x analogue, 2x AES \u0026amp; 4x Dante™ inputs can be routed to four DSP drive modules\u003c\/li\u003e\n\u003cli\u003eDrive module input processing:\n\u003cul\u003e\n\u003cli\u003eInput signal routing, delay, gain, HPF, Phase, Mute\u003c\/li\u003e\n\u003cli\u003eEQ: 2x low shelf, 6x PEQ \/ band pass and FIR shelving filters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eDrive module output processing:\n\u003cul\u003e\n\u003cli\u003eSource, delay, gain, Phase, Mute, crossover filters, VX limiters\u003c\/li\u003e\n\u003cli\u003eEQ: low shelf, 8x PEQ \/ band pass and shelving filters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003ePreset management:  10 snapshots for device wide setup, 50 presets for loudspeaker settings\u003c\/li\u003e\n\u003cli\u003ePresets can be recalled to sets of outputs or individual outputs as required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eUnique high performance processing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOverlays:\n\u003cul\u003e\n\u003cli\u003eTwelve additional independent overlays of EQ, Delay and Gain\u003c\/li\u003e\n\u003cli\u003eFlexible grouping for effective control of many amplifier channels in large systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eClass leading VX limiters:  See the ‘speaker protection systems’ section\u003c\/li\u003e\n\u003cli\u003eHardman crossover filters:  Better out of band rejection than Linkwitz-Riley\u003c\/li\u003e\n\u003cli\u003eLIR crossover filters:  Unique Linear Phase alignments without the compromises of FIR filters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePower Supply\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTopology (main power supply):  Linea Research high performance Series Resonant\u003c\/li\u003e\n\u003cli\u003eTopology (auxiliary and standby supplies):  Low quiescent Eco-Flyback\u003c\/li\u003e\n\u003cli\u003eInternally stored energy:  \u0026gt;600 Joules\u003c\/li\u003e\n\u003cli\u003eNominal mains input voltage range:  85V to 240V Power supply automatically detects voltage and configures accordingly\u003c\/li\u003e\n\u003cli\u003eMains input frequency range:  47Hz to 63Hz\u003c\/li\u003e\n\u003cli\u003eMains inrush current (max for \u0026lt;10ms):  6A at 115V and 12A at 230V\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePhysical\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCooling:  Dual vari-speed fans, front to back airflow. Washable, tool less change filter media.\u003c\/li\u003e\n\u003cli\u003eAnalogue IN and LINK:  4x female and 4x male Neutrik™ XLR\u003c\/li\u003e\n\u003cli\u003eAES3 dual channel IN and LINK:  1x female and 1x male Neutrik™ XLR\u003c\/li\u003e\n\u003cli\u003eAmplifiers output:  4x Neutrik Speakon™ NL4 connectors\u003c\/li\u003e\n\u003cli\u003eMains input connector:  Neutrik 32A Powercon™\u003c\/li\u003e\n\u003cli\u003eDante Primary and Secondary:  2x Shielded RJ45\u003c\/li\u003e\n\u003cli\u003eRelay output \u0026amp; contact closure inputs:  Phoenix™ pluggable terminal block (supplied)\u003c\/li\u003e\n\u003cli\u003eFront panel display (backlit):  Graphical, high contrast, daylight visible\u003c\/li\u003e\n\u003cli\u003eFront panel encoders:  Two, indented, velocity sensitive\u003c\/li\u003e\n\u003cli\u003eFront panel push buttons:  Large, tactile, illuminated\u003c\/li\u003e\n\u003cli\u003eLED indicators:  Bright, easily differentiated\u003c\/li\u003e\n\u003cli\u003eEnclosure:  Standard 19” 2U (88mm), 357mm (14”) deep  with handles and optional rear support\u003c\/li\u003e\n\u003cli\u003eNet Weight:  12.5kg (27.5 pounds)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Linea Research","offers":[{"title":"Default Title","offer_id":56901660279162,"sku":"LIN48M20BG","price":6600.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0511\/4245\/9568\/files\/48M_Series_M20_Front.webp?v=1756716498","url":"https:\/\/leisuretec.co.uk\/products\/b-grade-48-m20-8-channel-dsp-power-amplifier-8x2500w-2u","provider":"Leisuretec Distribution Ltd","version":"1.0","type":"link"}