Welcome to the Studio Senter
Summit Audio 2BA-221 Mic and Line Preamp

Summit Audio 2BA-221 Mic and Line Preamp

Summit Audio

$1,000.00 $749.99 Sale

2BA-221 Mic and Line Preamp

Publisher: Summit Audio

Featuring microphone-level, line-level, and hi-Z instrument inputs, the 2BA-221 continuously variable impedance microphone preamp utilizes separate and individually controlled solid-state input controls to mix the microphone input with the hi-Z or line input into the variable vacuum tube output. Mix them together through the 12AX7A/ECC83 vacuum tube output or seperately through individual solid-state outputs. The 2BA-221 also features a stackable input design; multiple 2BA-221's can be linked together to form a modular mixing device with individual outputs, inserts per channel, and a final vacuum tube gain stage. Its swept highpass filter, multiple simultaneous tube and solid-state outputs, insert jack, and internal power supply make the 2BA-221 a powerful tracking and mixing tool.

    Features:

    • Variable Mic input impedance from 100 ohms to 10K ohms 
    • Variable Highpass Filter 
    • Hi-Z Instrument, Line, and Mic Level Input 
    • Hi-Z input and Mic input available simultaneously with separate gain controls 
    • Separate solid state and tube outputs 
    • Insert Jack 
    • Stackable with more 2BA-221's 
    • ½ Rack Size 
    • 3 Year Warranty 
    • XLR and ¼" outputs and inputs 
    • Three variable, independent gain stages

    Specifications:

    Power Configuration

    • Internal AC Supply 
    • 20 watts, 115, 50 or 60 Hz (USA model) 
    • Fuse size .5 amp, slo-blo for 100/115 V 
    • Fuse size .25 amp, slo-blo at 230 V

    Input Impedendance

    • Mic: 1.5K ohms 
    • Hi-Z: 10K-1.75M ohms 
    • Output impedance (XLR): 150 ohms

    Connections

    • Mic Input: +4 dB female XLR 
    • Line Input: -10 dB 1/4" balanced 
    • Outputs: +4 dB male XLR and 1/4" -10 dB balanced 
    • Stacking Input/Output: -10 dB balanced 
    • Max input level 
    • Mic: -16dBu 
    • Line: 22dBu 
    • Hi-Z: 15dBu

    Operating Measurements

    • Max output level (XLR): 25dBu 
    • Max gain: 75dB 
    • Equivalent input noise: -135dB average 10Hz-20kHz 
    • Frequency response: 10Hz- 50kHz (-1dB) 
    • Signal to noise ratio: 115dB average 10Hz- 20kHz 
    • THD + Noise: 0.055%, -32dB in +4dB out, 1 kHz 
    • Vacuum tubes: 12AX7A

    Warranty: 3 year limited warranty

    • Height:
      1.75 inches (4.44 cm) 
    • Width:
      8.5 inches (21.59 cm) 
    • Depth:
      7.42 inches (21.59 cm) 
    • Weight:
      7 pounds (3.15 kg)