{"product_id":"behringer-1273-dual-channel-microphone-preamplifier","title":"Behringer 1273 Dual Channel Microphone Preamplifier","description":"\u003ch2\u003eBehringer 1273 Dual Channel Microphone Preamplifier\u003c\/h2\u003e\n\n\u003cp\u003eBehringer 1273 is a dual-channel microphone preamplifier designed for studio recording and professional audio environments. It enables microphone, line, and instrument signal amplification with integrated equalization for engineers and producers, supporting analog recording and mixing workflows. This makes it ideal for tracking and processing sources where transformer-based signal handling and tonal control are critical.\u003c\/p\u003e\n\n\u003cp\u003eThe unit operates using Class A discrete circuitry with transformer-balanced inputs and outputs on each channel. Input selection, gain staging, impedance behavior, and signal routing are controlled through front-panel switches and stepped gain controls. Equalization is applied through inductor-based filters and selectable frequency bands.\u003c\/p\u003e\n\n\u003cp\u003eThis configuration supports precise signal capture, tonal shaping, and integration into studio signal chains. It can be used for recording vocals, instruments, and line-level sources in rack-mounted systems. The device operates with an internal universal power supply for global use.\u003c\/p\u003e\n\u003cbr\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cb\u003e\u003c\/b\u003e\n\u003cli\u003e\n\u003cb\u003eDual Channel Design:\u003c\/b\u003e Two independent microphone preamplifier channels with equalization\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eClass A Circuitry:\u003c\/b\u003e All discrete signal path for consistent analog performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMidas Transformers:\u003c\/b\u003e Custom-built input and output transformers on each channel\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eStepped Gain Control:\u003c\/b\u003e Electronically controlled resistor-stepped rotary gain switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInductor Based EQ:\u003c\/b\u003e Three-band equalizer with selectable frequency points\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eComprehensive Switching:\u003c\/b\u003e Dedicated phase tone insert line instrument and phantom power controls per channel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cstrong\u003eAudio Inputs - Microphone\u003c\/strong\u003e\u003cbr\u003e\nType: 2 x XLR, transformer balanced front, 2 x XLR, transformer balanced rear\u003cbr\u003e\nImpedance: 300 Ω \/ 1200 Ω, balanced\u003cbr\u003e\nMax. input level: +19 dBu\u003cbr\u003e\nGain: -20 to 80 dB\u003cbr\u003e\nMic EIN @ 80 dB gain, 22 Hz to 22 kHz: -125 dBu unweighted\u003cbr\u003e\nCMRR @ 60 dB gain: \u0026gt; 90 dB\u003cbr\u003e\u003cbr\u003e\n\n\u003cstrong\u003eAudio Inputs - Line\u003c\/strong\u003e\u003cbr\u003e\nType: 2 x 1\/4 inch TRS in combi socket, transformer balanced front, 2 x 1\/4 inch TRS, transformer balanced rear\u003cbr\u003e\nImpedance: 10 kΩ, balanced\u003cbr\u003e\nMax. input level: +30 dBu attenuated -34 dB\u003cbr\u003e\nGain: -20 to 80 dB\u003cbr\u003e\nCMRR @ 0 dB gain: \u0026gt; 80 dB\u003cbr\u003e\u003cbr\u003e\n\n\u003cstrong\u003eAudio Inputs - Instrument\u003c\/strong\u003e\u003cbr\u003e\nType: 2 x 1\/4 inch TRS, front, hi-Z via transformer\u003cbr\u003e\nImpedance: 600 kΩ, unbalanced\u003cbr\u003e\nMax. input level: +30 dBu attenuated -20 dB\u003cbr\u003e\nGain: -20 to 80 dB\u003cbr\u003e\nInsert return: 2 x 1\/4 inch TS\u003cbr\u003e\u003cbr\u003e\n\n\u003cstrong\u003eAudio Outputs\u003c\/strong\u003e\u003cbr\u003e\nType: 2 x XLR, 1\/4 inch TRS, transformer balanced\u003cbr\u003e\nImpedance: \u0026lt; 80 Ω balanced\u003cbr\u003e\nMax. output level: +28 dBu\u003cbr\u003e\nInsert send: 2 x 1\/4 inch TS\u003cbr\u003e\u003cbr\u003e\n\n\u003cstrong\u003eSystem Specifications\u003c\/strong\u003e\u003cbr\u003e\nFrequency response microphone: 20 Hz to 20 kHz, ±0.5 dB\u003cbr\u003e\nFrequency response line and instrument: 20 Hz to 20 kHz, ±1 dB\u003cbr\u003e\nDistortion THD+N: \u0026lt;0.01% @ 1 kHz, +4 dBu\u003cbr\u003e\nDistortion THD+N: \u0026lt;0.07% 50 Hz to 20 kHz, +4 dBu\u003cbr\u003e\nNoise: \u0026lt; -83 dBu 20 Hz to 20 kHz unweighted\u003cbr\u003e\nDynamic range: \u0026gt; 102 dB typical 20 Hz to 20 kHz unweighted\u003cbr\u003e\nCircuit: Class-A amplifiers, inductor based EQ\u003cbr\u003e\u003cbr\u003e\n\n\u003cstrong\u003eEQ Section\u003c\/strong\u003e\u003cbr\u003e\nHi pass filter: 50 \/ 80 \/ 160 \/ 300 Hz, 18 dB per octave\u003cbr\u003e\nLow-band frequency range: 35 \/ 60 \/ 110 \/ 220 Hz\u003cbr\u003e\nBoost \/ cut: ±15 dB\u003cbr\u003e\nMid-band frequency range: 360 \/ 700 \/ 1600 \/ 3200 \/ 4800 \/ 7200 Hz\u003cbr\u003e\nBoost \/ cut: ±15 dB\u003cbr\u003e\nHigh-band frequency range: 10 \/ 12 \/ 16 kHz\u003cbr\u003e\nBoost \/ cut: ±15 dB\u003cbr\u003e\u003cbr\u003e\n\n\u003cstrong\u003eControls\u003c\/strong\u003e\u003cbr\u003e\nButtons: 2 x 48 V phantom power, 2 x polarity invert, 2 x tone, 2 x line, 2 x insert, 2 x instrument, 2 x EQ in\u003cbr\u003e\nGain controls: 2 x gain -20 to 80 dB\u003cbr\u003e\nEQ controls: 2 x low ±15 dB, 2 x mid ±15 dB, 2 x high ±15 dB\u003cbr\u003e\nHi pass controls: off, 50 Hz, 80 Hz, 160 Hz, 300 Hz\u003cbr\u003e\nOutput level: zero off to 0 dB\u003cbr\u003e\nPower switch: On off\n","brand":"Behringer","offers":[{"title":"Default Title","offer_id":45926170493125,"sku":"BEHR-1273","price":779.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0630\/3085\/3829\/files\/1-behringer-1273_f669fbef-37bd-4e7f-8145-3a45b5fa0b22.jpg?v=1772582395","url":"https:\/\/avlgear.com\/products\/behringer-1273-dual-channel-microphone-preamplifier","provider":"AVLGEAR","version":"1.0","type":"link"}