EBS MicroBass 3 Preamp

Kev Sanders takes a look at this latest offering from EBS, the MicroBass 3 Preamp. Hear what Kev had to say and be sure to plug in a good set of headphones or speakers for best results.

EBS MicroBass 3 Preamp £319

Technical Specifications

 Clean Channel

Input Impedance: Parallel mode 1.5 Mohms // 44pF

Serial mode 10 Mohms// 22 pF

Gain: Gain Range min/max – 00/+30dB

Gain Peak LED +10 dBv

Frequency Response +0/-3 dB 20-20,000 Hz

Character: Filter Type Shelving High/Low Pass

Gain: Lo +6dB @ 80 Hz

Mid -2 dB @ 900 Hz

Hi +3 dB @ 7.5kHz

Bright: Filter Type Shelving

Gain: +10 dB @ 10kHz

Filter Section:

Bass Filter: Type 12 dB/oct.Shelving

Gain Range: +/-18 dB @60 Hz

Mid Filter: Type Bandpass Filter

Freq Range: 50 – 5,000 Hz

Q – Boost 0.5 – 1.3

Q – Cut 0.5 – >5

Gain Range: +/-12-15dB

Treble Filter: Type Shelving

Gain Range: +/-18dB @

Comp/Limit:  Comp Gain 0dB

Attenuation max 24 dB

Compression Ratio max 3:1

Attack (80%) typ <10ms

Release (80%) typ 100 ms

 

Drive Channel

Input Impedance: 1.8 Mohms // 22pF

Drive: Gain Range                  40dB

Drive Engines:

Lo: Type   2ndharmonics soft

Hi: Type   Symmetrical 2 stage with +18 dB gain

Type Switch: Thin/ Normal/ Deep   Pre Drive EQ

Filter Section:

Tone Filter: Type    6 dB/oct. Low pass.

Frequency Range: 700 – 20k Hz

Mid Filter: Type   Bandpass Filter

Frequency Range: 100 – 4.500 Hz

Q: 1.2

Gain Range:  +/15 dB

Common Features:

Effects Loop: Loop Signal Level        nominal – 10 dBv

Gain Unity: (1:1)

Output Impedance: <100 ohms

Input Impedance: >200 kohms // 22 pF

Phones Out: Recommended Imp    32 – 200 ohms

Aux Input: Input Impedance 20 kohms

Nominal Level:  -10 dBv

Output: Output Impedance     <1 kohms

Signal Level: nominal 0 dBv

Balanced Outputs:      Output Level   nominal -20dBv

XLR Connections: 1-GND, 2-Hot, 3-Cold

Options: Pre/Post EQ, L/R Ch in stereo mode

Auxilary Info:

Power Requirements:  Idle 450mA @9V

Max: 750mA @9V

(with headphones at max output level)

Dimensions (WxDxH)  Max  168 x 124 x 53 mm

6.6” x 4.9” x 2.1”

Weight: 660g (1.5 Ibs)

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