Universal Audio UA Bock 167 User manual
UA Bock 167 Microphone PSU
Universal Audio, Inc.
V230523A
4585 Scotts Valley Drive, Scotts Valley, CA 95066
www.uaudio.com
Power Supply Guide
UA Bock 167 PSU Specifications
Safety
Universal Audio, Inc.
4585 Scotts Valley Drive, Scotts Valley, CA 95066
www.uaudio.com
Introduction
UA Bock 167 Power Supply Unit
Your UA Bock 167 includes a high quality PSU that is custom designed
exclusively for the Bock 167 mic. The PSU is factory-configured for the AC
input voltage in the region where it is sold. There are no fuses or other user
replaceable parts inside the unit.
For the UA Bock 167 User Guide, visit help.uaudio.com
Getting Started
Place the UA Bock 167 microphone in its included shockmount on a stable mic
stand. Connect the power supply to AC, then connect the included six-pin
XLR cable from power supply to microphone.
Note: The power supply should be powered off before connecting or
disconnecting the microphone. After switching on the power supply, allow
the tube several minutes to warm up before use.
The Bock 167’s polar response pattern is adjusted by the continuously
variable remote control on the power supply. Rotate the control fully
counterclockwise for omni response, or fully clockwise for figure-8
response. Set the control to noon (straight up) for cardioid polar response.
For customer support, visit help.uaudio.com
The UA Bock 167 microphone continues Universal Audio’s proud tradition
of timeless craftsmanship. Lovingly handbuilt at the UA Custom Shop
in Santa Cruz, California, your new microphone is designed to deliver
uncompromising quality and a lifetime of musical inspiration.
This microphone is a high-quality large-diaphragm condenser with vacuum
tube electronics and continuously variable directivity. Featuring a dual
membrane K67 capsule and a large core output transformer to dramatically
increase low frequency response and headroom, the UA Bock 167 sounds
rich and full.
Designed and engineered by David Bock, the UA Bock 167 provides a wider
range of controls versus a vintage U67. This makes it a natural choice for
singers, acoustic instruments, drums, and voiceovers.
Input
100 VAC
115 VAC
220/230 VAC
Output
130 VDC @ 0.75 mA
5 VDC @ 132 mA
Before using this unit, be sure to carefully read the applicable
items of these operating instructions and the safety
suggestions. Afterwards, keep them for future reference.
Take care to follow the warnings indicated on the unit, as well
as in the operating instructions.
Important Safety Instructions
Read and follow all instructions. Heed all warnings. Keep
these instructions.
Do not use this apparatus near water.
Clean only with dry cloth.
Do not block any ventilation openings. Install in accordance
with the manufacturer’s instructions.
Do not install near any heat source such as radiators, heat
registers, stoves, or other apparatus (including amplifiers)
that produce heat.
Only use with attachments/accessories specified by the
manufacturer.
Do not defeat the safety purpose of the polarized or
grounding-type plug. A polarized plug has two blades with
one wider than the other.
Used electrical and electronic equipment should
not be mixed with general household waste. Please
dispose in accordance with local regulations.
Hazardous voltage enclosed. Do not open, will cause
shock or burn. If servicing is needed, disconnect
power and contact Universal Audio customer
support.
Protect the power cord from being walked on or pinched
particularly at plugs, convenience receptacles, and the point
where they exit from the apparatus.
Refer all servicing to qualified service personnel. Servicing
is required when the apparatus has been damaged in any
way, such as power-supply cord or plug is damaged, liquid
has been spilled or objects have fallen into the apparatus,
the apparatus has been exposed to rain or moisture, does not
operate normally, or has been dropped.
UA BOCK 167 PSU does not contain a fuse or any other user-
replaceable parts.
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Case
Audio (-)
Audio (+)
Pattern
Heater (5VDC)
B+ (130VDC)
Ground
Shield
Power Supply Pinouts
Connectors
6-Pin XLR (mic)
3-Pin XLRM (power supply)
Max Operating Temp
40° C
Power Rating
8.2 W
Safety Standards
UL 62368-2
EN 62368-1
