The LaChapell Audio 500DT dual topology preamp is a 500 series microphone preamp that features two separate topologies or amplification paths. When the blend knob is fully to the TUBE side, the signal will pass through a transformer before being amplified by a TrueTube™ powered 12AX7 vacuum tube. TrueTube is LaChapell Audio’s proprietary method of supplying a full 250V to the vacuum tube so you get loads of clean tube gain.
When the blend knob is turned fully to the OPAMP side, the signal passes directly to a solid state preamplifier. This input is transformer-less and will provide clean gain with exceptionally low noise Placing the blend control anywhere between the two extremes will “blend” the two topologies for a wide variety of tonal options.
|Frequency Response||20 Hz to 20 kHz|
|Maximum Output||12 dBu|
|Solid State Path|
|Frequency Response||20 Hz to 46 kHz|
|Maximum Output||28 dBu|
|Internal Gain||67 dBu|
|Input Impedance||1.5 KΩ Mic / 10 KΩ Hi-Z|
|Tube Complement/Type||1x 12AX7 (ECC83)|
DUAL TOPOLOGY USE EXAMPLES
Press the button to see how you might use the LaChapell Audio 500TDI Dual topology preamp in the studio.
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