dbx Pro Vacuum Tube Microphone Preamplifier manual Microphone Input System Performance, Line Input

Models: Vacuum Tube Microphone Preamplifier

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Mini-Pre

Vacuum Tube Microphone Preamplifier

Microphone Input

 

System Performance

 

Connector:

Female XLR Pin 2 Hot

Gain Control Range:

+26dB to +60dB for Mic Input

Type:

Electronically balanced/unbalanced

 

+16dB to +50dB for Line and Instrument Inputs

Impedance:

2kΩ

Output Level Control Range

-∞ to +10dB

Maximum Input Level:

-10 dBu or +10 dBu with 20 dB pad engaged

CMRR:

Typically >80dB at 1kHz

Phantom Power:

+48V

Equivalent Input Noise:

Typically -125 typical dBu with a 150Ω source load “A-

PAD:

20dB pad

 

weighted”

PHASE:

Reverses pins 2 and 3 of the output XLR

Line Input

 

Frequency Response:

10Hz to 45kHz (-3dB points)

Connector:

TS 1/4" Jack

THD+Noise:

0.08% typical at -10dBu out, 1kHz, 30 dB gain

Type:

Electronically unbalanced

 

“A-weighted”

Impedance:

>1 meg Ω

Power Supply

 

Maximum Input Level:

0 dBu or +20dBu with 20dB pad engaged

Operating Voltage:

 

Gain

26dB to 60dB

JA:

100VAC 50/60Hz

 

 

DO:

120VAC 60Hz,

Outputs

Male XLR Pin 2 Hot and impedance balanced TRS 1/4"

EU:

230VAC 50/60 Hz

Connector:

 

 

Type:

Balanced/unbalanced

Power Requirements:

9VAC 1300ma (12 watt typical power consumption)

Impedance:

Balanced 600Ω, unbalanced 300Ω

 

 

Maximum Output Level:

(XLR) > +27dBu; (1/4”) > +21dBu

 

 

 

 

 

 

 

 

 

 

dbx engineers are constantly working to improve the quality of our products. Specifications

FOR MORE INFORMATION CONTACT:

are, therefore subject to change without notice.

dbx Professional Products

 

8760 S. Sandy Pkwy.

 

Sandy, Utah 84070

 

Phone (801)

568-7660

 

Fax (801)

568-7662

 

customer@dbxpro.com

 

http://www.dbxpro.com

A Harman International Company

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dbx Pro Vacuum Tube Microphone Preamplifier manual Microphone Input System Performance, Line Input, Power Supply, Outputs