Unbalanced To Balanced Connections; Technical Specifications Rb-Bl4 - Sonifex Redbox Series User Handbook Manual
Single/dual/quad stereo unbalanced to balanced/balanced to unbalanced converters, single/dual bi-directional matching converter, dual stereo riaa phono amplifier, stereo line isolation unit
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Also See for Redbox Series:
- Introduction manual (62 pages) ,
- User handbook manual (136 pages) ,
- User handbook manual (68 pages)
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6
Matching Converters - RB-BL4
Unbalanced to Balanced Connections
RCA Phono Inputs 2 & 4 (Left & Right)
The left and right RCA inputs 2 & 4 are unbalanced and have an impedance
Outputs 2 & 4 (Left & Right)
Pin 1: Screen.
Pin 2: Phase.
Pin 3: Non-phase.
Technical Specifications RB-BL4
Audio Specifications
Maximum Input Level:
+28dBu
Maximum Output Level:
+28dBu
Distortion:
0.01% THD @ 1kHz, ref +8dBu output
Noise:
-100dB, unity gain, ref +8dBu output
Common Mode Rejection: >66dB typically
Gain Range:
Unbalanced Output: -28dBu to +15dBu,
Gain Range:
Balanced Output: -15dBu to +15dBu, ref
-15dBu into unbalanced RCA input
16
Connections
4 x RCA phono (unbalanced)
4 x RCA phono (unbalanced)
Mains Input:
Filtered IEC, 110V-120V, or 220-240V
switchable, fused, 6W maximum
Fuse Rating:
Anti-surge fuse 100mA 20 x 5mm (230VAC)
Anti-surge fuse 250mA 20 x 5mm (115VAC)
Equipment Type
RB-BL4:
Dual stereo bi-directional matching converter
Physical Specification
Dimensions (Raw)
48cm (W) x 10.8cm (D) x 4.2cm (H) (1U)
19" (W) x 4.3" (D) x 1.7" (H) (1U)
Dimensions (Boxed)
53cm (W) x 20.5cm (D) x 6cm (H)
21" (W) x 8" (D) x 2.4" (H)
Weight
Nett: 1.3kg Gross: 1.9kg
Nett: 2.9lbs Gross: 4.2lbs
The output gain can be individually adjusted for left and right channels by
using pre-set potentiometers accessible through the rear panel. An LED
power indicator on the front panel displays the power supply connection.
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