The AT-3 is a tube Mic/Line/DI preamp that uses a combination of different audio transformers and a traditional 3 stage tube pre amp design to achieve a unique tonal balance with the shortest possible signal path for today’s modern recording. Contact us for more information and pricing.
The AT-3 has 3 inputs: Mic, Line and DI. The DI switch over-rides the other 2 balanced inputs and accepts a 1/4” unbalanced jack at -20dbu instrument level straight into the front end of the EH7025 input for a super clean broadband output. All the front panel switches activate micro switching relays for the cleanest path signal path. Phantom switches the 48v in with a slow rise time. The power supply is all linear with adjustable and regulated heater power up. B+ supply is linear.
· Mic Input: Balanced Hi/Low Z
· Mic Input impedance: 150/10K or 600/10K
· Mic input gain: Approx 50db of gain with a -30db input for a better than -50db THD+n output.
· Mic input pad: 15dbu
· Max line input level: Balanced 25dbu headroom
· Line input gain: 8dbu
· DI input: High Z unbalanced
· DI input gain: 46db of gain with a -20db input with a better than -50db THD+n output.
· High pass filter: 75hz
· Frequency response: 20hz to 20khz <0.5 db
· THD+N vs Freq: <50db @ 1khz
· XLR in and out Pin 2 Hot
· Dimensions: H90 x W216 x D420mm 2u half 19″ width space
· Power: 120/240v 50/60hz 20w IEC fused 350ma
· Weight: Approximately 7kg.
· Tube complement: 1x 7025 / ECC83 input tube 1x 12bh7 / 6414 output tube
· Power Supply: Linear
· Racking kit available for mounting 2 units side by side into 19″ rack slot
