DBX Mini-Pre Single Channel Tube Microphone Preamp

dbx Professional Products has been redefining the standard of Professional Signal Processing for 30 years. From the 386 Tube Microphone Preamp to the 586 Dual Channel Tube Microphone Preamp, dbx has been the Professional's choice when it comes to the classic sound of tube microphone preamps.

In this same tradition, dbx is proud to introduce the all-new Mini-Pre Vacuum Tube Microphone Preamp. The Mini-Pre takes the classic dbx Tube Microphone Preamp sound and puts it in an easy to use, compact, affordable package. With the new dbx Mini-Pre Vacuum Tube Microphone Preamp you will no longer need to compromise tone for affordability.

Classic dbx Tube Microphone Preamp tone, portability, and affordability are the hallmarks of this new microphone preamp from dbx. From its uncompromising crystal-clear, high-bandwidth, low-noise circuitry, to its roadworthy construction, the Mini-Pre offers a feature set that includes: a hand- selected, Soviet-made premium 12AX7 vacuum tube to add warmth and tone to any microphone signal, selectable 48 volt phantom power, 20 dB Pad and Phase reverse switch, the new Vacuum Tube Mini-Pre has the features that you would expect, at a price that would have been unthinkable just a few years ago.

Features
Single channel tube microphone preamp

Hand-selected, Soviet-made, premium 12AX7 vacuum tube

60 dB gain and -infinity to +10dB of output level

XLR microphone input

1/4 in. TS line input

Balanced 1/4 in. TRS and XLR outputs

Selectable +48 volt phantom power

20 dB Pad

Phase reverse switch

Peak LED

Technical Info

Microphone Input
Connector: Female XLR Pin 2 Hot

Type: Electronically balanced/unbalanced

Impedance: 2k

Maximum Input Level: -10 dBu or +10 dBu with 20 dB pad engaged

CMRR: Typically >80dB at 1kHz

Equivalent Input Noise: Typically -125 typical dBu with a 150ohm source load "A-weighted"

Line Input (Rear Panel)
Connector: TS 1/4 in. Jack

Type: Electronically unbalanced

Impedance: >1 meg

Maxium Input Level: 0 dBu or +20dBu with 20dB pad engaged

Gain (Drive Control) 26dB to 60dB

Outputs
Connector: Male XLR Pin 2 Hot and impedance balanced TRS 1/4 in.

Type: Balanced/unbalanced

Impedance: Balanced 600ohm, unbalanced 300

Maximum Output Level: (XLR) > +27dBu; (Õ in.) > +21dBu

Digital Outputs
Connectors: XLR for AES/EBU, RCA for S/PDIF

Impedance: 110 ohm for AES/EBU, 75 ohm for S/PDIF

System Performance
Gain Control Range:
+26dB to +60dB for Mic Input
+16dB to +50dB for Line and Instrument Inputs

Output Level Control Range: -inifinity to +10dB

Phantom Power: +48V

Pad: 20dB pad

Phase: Reverses pins 2 and 3 of the output XLR

Frequency Response: 10Hz to 45kHz (-3dB points)

THD+Noise: <0.08% typical at -10dBu out, 1kHz, 30 dB gain
"A-weighted"

Power
Operating Voltage: JA: 100VAC 50/60Hz

DO: 120VAC 60Hz,

EU: 230VAC 50/60 Hz

Power Requirements: 9VAC 1300ma (12 watt typical power consumption)

Note: dbx engineers are constantly working to improve the quality of their products. Specifications are, therefore subject to change without notice.