{"product_id":"key-digital-kd-amp220-compact-digital-amplifier-and-pre-amplifier","title":"Key Digital KD-AMP220 Compact Digital Amplifier and Pre-Amplifier","description":"\u003cp\u003e\u003cspan\u003eThe KD-AMP220 is a 2x20-watt Class-D amplifier with an 8 Ω speaker output ideal for installation in presentation spaces. Input connections accommodate microphone, line level balanced\/unbalanced, and line level 3.5mm stereo analog audio inputs. The output is a mix of audio from the microphone input and the selected audio input. Microphone and output volume levels may be variably controlled via IR, RS-232, or the front panel, and speaker level output may be set to bridge stereo or mono mode.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eClass D 2 Channel Amplification: 20W PER CHANNEL @ 4ohm, 40W @ 8ohm BRIDGED\u003c\/li\u003e\n\u003cli\u003eMixing: Output is a mix of microphone and the selected audio input\u003c\/li\u003e\n\u003cli\u003eSignal Processing of variable volume level set for each input. Variable volume, bass, and treble for output\u003c\/li\u003e\n\u003cli\u003eInputs: Microphone (3-pin balanced, condenser\/dynamic), 6-pin balanced stereo, 3.5mm stereo\u003c\/li\u003e\n\u003cli\u003ePhantom Power: 48V phantom power for integration with condenser microphones\u003c\/li\u003e\n\u003cli\u003eOutputs: Pre-amp line level (6-pin balanced), speaker level\u003c\/li\u003e\n\u003cli\u003eSpeaker Level Output: Bridge, stereo, or mono modes selectable\u003c\/li\u003e\n\u003cli\u003eNoise gate for consistent audio levels, prevention of ambient noise\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnalog Inputs:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOne (1) 6-pin Phoenix Connector; One (1) 3.5mm TRS Connector\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMicrophone Input: \u003c\/b\u003eOne (1) 3-pin Phoenix Connector\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eControl (Front Panel): \u003c\/b\u003ePush Button, Rotary Knob\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eControl (Rear Panel): \u003c\/b\u003eRS-232 via One (1) 3-pin Phoenix Connector; IR via One (1) 3.5mm TRS Connector\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMicrophone 48V Phantom Power Mode Switch: \u003c\/b\u003eOne (1) 2-Position Slide Switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOutput Signal Format Selector: \u003c\/b\u003eOne (1) 3-Position Slide Switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBalanced\/Unbalanced Analog Audio Output: \u003c\/b\u003eOne (1) 6-pin Phoenix Connector\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSpeaker Output: \u003c\/b\u003eOne (1) 4-pin\/5 mm Phoenix Connector\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e24V DC Power: \u003c\/b\u003eOne (1) Barrel (5.5 mm OD, 2.1 mm ID)\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAudio Performance\u003c\/strong\u003e\u003cstrong\u003e\u003cu\u003e\u003cbr\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eInput Impedance:\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003e\u0026gt;10k Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOutput Impedance: \u003c\/b\u003e50 Ω Analog Output; 4\/8 Ω Speaker Output\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaximum Rated Power Output: \u003c\/b\u003e40 Watts\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFrequency Response: \u003c\/b\u003e120 Hz to 20 kHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCommon Mode Rejection Ratio (CMRR): \u003c\/b\u003e\u0026gt;70 dB at 20 Hz to 20 kHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSignal to Noise Ratio (SNR): \u003c\/b\u003e80 dB (Max)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTotal Harmonic Distortion + Noise (THD+N)L: \u003c\/b\u003e1% at 1 kHz; 0.3% at 20 kHz at Nominal Leve\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVoltage Gain: \u003c\/b\u003e32 dB\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eChassis and Environmental\u003c\/strong\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eEnclosure:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003ePainted Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDimensions (W x H x D): \u003c\/b\u003e8.661” x 1.299” x 4.094” (LxDxH)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eNet Weight: \u003c\/b\u003e1.153 Lb\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOperating Temperature: \u003c\/b\u003e+32° to +104° F (0° to +40° C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOperating Humidity: \u003c\/b\u003e20% to 90%, Non-condensing\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eStorage Temperature: \u003c\/b\u003e+14° to +140° F (-10° to +60° C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eStorage Humidity: \u003c\/b\u003e20% to 90%, Non-condensing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePower, ESD, and Regulatory\u003c\/strong\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eMinimum Power Consumption:\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003e5 watts\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaximum Power Consumption: \u003c\/b\u003e45 watts\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePower Supply Input Voltage: \u003c\/b\u003e100-240v AC at 50\/60 Hz at 0.5 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePower Supply Output Rating: \u003c\/b\u003e24V DC at 2.71 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eESD Protection: \u003c\/b\u003e15kV\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDevice Regulatory: \u003c\/b\u003eCE, FCC\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePower Supply Regulatory: \u003c\/b\u003eCE, FCC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!----\u003e","brand":"Key Digital","offers":[{"title":"Default Title","offer_id":41726084808783,"sku":"KD-AMP220","price":289.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0054\/9466\/9382\/files\/image_44665e31-f26d-478e-8d1c-81bd778a79ca.jpg?v=1715953544","url":"https:\/\/shop.musicredone.com\/products\/key-digital-kd-amp220-compact-digital-amplifier-and-pre-amplifier","provider":"RedOne Music Canada","version":"1.0","type":"link"}