FreeSpace DXA 2120 Digital Mixer/Amplifier - Tech Data Sheet - Bose

FreeSpace ® DXA 2120Digital Mixer/AmplifierEngineers’ and Architects’SpecificationsThe unit shall be a digital mixer/amplifier.The unit shall use a digital signal processingarchitecture running at 44.1 kHz sample rate.The frequency response shall be from 40 Hz to16 kHz (+0/-3 dB). The dynamic range shall be80 dB (typical) 40 Hz to 16 kHz. The signal-to-noiseratio shall be 75 dB or greater (A-weighted).The unit shall have mixing and routing capabilitiesas well as amplification. The unit’s DSP shallfeature selectable Bose ® loudspeaker EQs aswell as dynamic equalization.The input section shall have four mic/line inputs,one direct input and one page input. The mic/lineinputs shall have both 3-pin Euroblock connectorsfor balanced mic/line inputs and dual RCA jacks(summed to mono) for unbalanced line inputs.The direct and page inputs shall have 4-pinEuroblock connectors for balanced inputs.The page input shall be operated in PTT (pushto talk) or Auto mode and provide automaticducking for announcements.The direct input shall automatically overrideall other inputs when a signal is detected foremergency signaling purposes.The output section shall feature two poweredloudspeaker outputs with 5-terminal invertedEuroblock connectors. The unit will have anauxiliary output with a 3-pin Euroblock connector.The amplifier section shall contain two poweredoutputs for high or low impedance: 2 x 120W at4Ω or 2 x 100W at 70/100V. The THD shall beless than 0.5% @ full rated power.The unit shall feature three different modes ofoperation: Mixer Mode, Stereo Select Mode andDual Mono Select Mode.The 100V variant will operate at 100V AC.A second variant will be able to operate at120V/220-240V AC; there will be an AC inputvoltage switch on the unit. The unit shallconsume AC power of 40W or less at idle,350W at maximum continuous rated powerand also will have a 2-terminal barrier strip forconnecting a 24V DC backup power supply.The unit will have a remote input with a6-pin Euroblock connector for using one ortwo volume controls and/or volume controlwith A/B select user interfaces.The unit shall be configurable via the onboardcontrols and feature a “lockout” feature toprevent unwanted system changes. An RS-232COM port will be available for system updates.The unit shall be the Bose ® FreeSpace ® DXA 2120digital mixer/amplifier.Safety and Regulatory ComplianceThe 120V/220-240V AC variant (PC 040753,PC 040754, PC 040755, PC 040756) of theFreeSpace DXA 2120 digital mixer/amplifiercomplies with CE requirements, is UL Listedaccording to UL60065 (7th edition) andCAN/CSA C22.2 No. 60065-03; CB approved,according to IEC60065 (7th edition), includinggroup and National differences; GS approved,according to EN60065 (7th edition). It alsocomplies with FCC Part 15B Class A (2003),EN55103-1 (1997), EN55103-2 (1996), andCISPR13 (2003) requirements.The 100V variant (PC 040742) of the DXA 2120digital mixer/amplifier is PSE compliant.Limited WarrantyThe FreeSpace DXA 2120 digital mixer/amplifieris covered by a two-year transferable limitedwarranty.How our Products are Measured1. Amplifier powerA single channel is driven to full powerwith the nominal load impedance (120W/4Ω,100W/70V/49Ω, 100W/100V/98Ω). Outputpower is measured using a 1 kHz sine wavewith a THD of less than 0.5%, as measuredat the amplifier output.2. Dynamic rangeThe output of the amplifier is connected tothe rated load impedance, and the input andoutput gains are set to maximum. A dB-calibratedvoltmeter is connected to the amplifier’s outputthrough an A-weighting filter (in accordancewith IEC 60651). A 1 kHz signal is connected toone of the line inputs, and the level is adjustedto achieve the amplifier’s rated output power.The voltmeter is then zero-referenced. Thesignal source is removed, and the line input isshorted. The dB-calibrated voltmeter now readsthe absolute dynamic range of the system.TECHNICAL DATA SHEET6OF 8pro.Bose.com