Data Sheet-1
BB 22
BALANCE BUDDY
General Description
The Rane BB 22 Balance Buddy is a handy professional-grade
tool used to provide isolation for and convert unbalanced -10
dBV consumer level RCA outputs up to ba4 dBu profes-
sional XLR inputs. The BB 22 converts one pair from -10 dBV
to +4 dBu. There are two male XLR connectors and two RCA
jacks.
Unbalanced lines should always be kept
under
10 feet (3
meters) to prevent undesirable effects such as hum and noise. The
BB 22 allows conversion to balanced lines that can be run across
a studio or a house without loss of signal quality. For instance, a
BB 22 may be mounted to the back of a jukebox converting its
unbalanced outputs to balanced lines, feeding an amplifier in
another room.
Signal-to-noise performance is perfectly preserved using the
BB 22, since it uses only passive transformers to convert signal
levels. It adds no additional noise whatsoever. Use of professional
quality nickel core (“80” Ni) transformers guarantee low distor-
tion, wide bandwidth and high signal level handling capability.
The BB 22’s isolation transformers provide a quick and af-
fordable answer to most jobs requiring signal level conversion
and output balancing.
Features
• 2 Channels of -10 dBV (RCA) to +4 dBu (XLR) Conversion
• Nickel Core “80” Ni Transformers
DATA SHEET / MANUAL
WEAR PARTS:
This product contains no wear parts.
• Wide Bandwidth - Low Distortion
• +24 dBu Maximum Levels
Parameter
Specification
Limit
Units
Conditions/Comments
Transformer Construction
Nickel Core Bobbin Wound
Grade “80” Ni
Turns Ratio
1:3.89
-10 dBV (316 mV): +4 dBu (1.23 V)
Maximum Levels
..........-10 dBV In
+10 (40 Hz-20 kHz); +4.5 (20 Hz)
0.5dB dBV
1% THD point
..........+4 dBu Out
+24 (40 Hz-20 kHz); +18.5 (20 Hz)
0.5dB dBu
1% THD point
Input Impedance
(Load Impedances as Shown)
..........-10 dBV
1k
5 %
Ω
Load impedance 15k Ω
Insertion Loss
0.5
0.1
dB
With recommended load impedance
DC Resistance
47.5 / 200
10%
Ω
-10 dBV / +4 dBu
Frequency Response
20-20 kHz
±2
dB
+4 dBu out; recom. load impedance
THD + Noise
less than .05 (40 Hz-20 kHz)
max
%
+4 dBu out
Unit: Agency Listing
UL/CSA
Exempt Class 2 equipment
CE-EMC
Exempt passive device
CE-Safety
Exempt extra low voltage device
Unit: Construction
All Steel
..........Size
1.65"H x 5.1"W x 4.25"D
(4.2 cm x 13 cm x 10.8 cm)
..........Weight
1 lb
(.45 kg)
Shipping: Size
3.6" x 11.75" x 7.2"
(9.5 cm x 30 cm x 18 cm)
..........Weight
2 lb
(.9 kg)
All specifications apply both directions, unless noted.
