EBS MB3 MicroBass 3 Professional Bass Preamp

The MicroBass 3 is a premium 2-channel analog preamp designed to deliver consistent tone and full control in any environment. Built on the legacy of the EBS HD360 and Fafner II amp platforms and engineered in Sweden with high-grade components, it provides dependable performance whether you are running direct to a console, into a power amp, or managing your entire rig from the floor.

Clean and Drive channels can be run in series or parallel, giving you flexible signal routing and tonal layering. Dual XLR outputs allow simultaneous pre/post EQ feeds or stereo FX return, while the high 10 MΩ input accommodates passive, active, and piezo pickups with ease. An onboard tuner, integrated compressor, stereo effects loop, and comprehensive EQ sections make the MicroBass 3 a complete stage and studio solution in a tour-ready format.

• Clean Channel Input Impedance: Parallel mode 1.5 Mohms, 44 pF; Serial mode 10 Mohms, 22 pF
• Clean Channel Gain Range: -∞ to +30 dB; Gain Peak LED +10 dBv
• Clean Channel Frequency Response: +0 / -3 dB, 20 – 20,000 Hz
• Character Filter: Shelving High/Low Pass; Lo +6 dB @ 80 Hz, Mid -2 dB @ 900 Hz, Hi +3 dB @ 7.5 kHz
• Bright: Shelving, +10 dB @ 10 kHz
• Bass Filter: 12 dB/oct. Shelving, +/- 18 dB @ 60 Hz
• Middle Filter (Clean): Bandpass, 50 – 5,000 Hz, Q Boost 0.5 – 1.3, Q Cut 0.5 – >5, Gain +/- 12–15 dB
• Treble Filter: Shelving, +/- 18 dB @ 8 kHz
• Compressor/Limiter: Max Attenuation 24 dB, Ratio max 3:1, Attack typ <10 ms, Release typ 100 ms
• Drive Channel Input Impedance: 1.8 Mohms, 22 pF
• Drive Gain Range: 40 dB
• Drive Engines: Lo 2nd harmonics soft; Hi symmetrical 2-stage with +18 dB gain
• Drive Type: Thin / Normal / Deep Pre Drive EQ
• Tone Filter (Drive): 6 dB/oct. Low Pass, 700 – 20 kHz
• Middle Filter (Drive): Bandpass, 100 – 4,500 Hz, Q 1.2, +/- 15 dB
• Effects Loop: Nominal -10 dBv, Unity Gain, Output Impedance <100 ohms, Input Impedance >200 kohms
• Phones Out: Recommended 32 – 200 ohms
• Aux Input: 20 kohms, Nominal -10 dBv
• Output: <1 kohms, Nominal 0 dBv
• Balanced Outputs: -20 dBv nominal, XLR 1-GND, 2-Hot, 3-Cold, Pre/Post EQ, L/R stereo mode
• Power Requirements: 450 mA idle @ 9V, Max 750 mA @ 9V
• Dimensions: 168 x 124 x 53 mm (6.6″ x 4.9″ x 2.1″)
• Weight: 660 g (1.5 lbs.)