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Rolls MB15b ProMatch Line-Level Converter
Best signal converter for connecting consumer and professional audio gear.
This essential utility box solves the common headache of connecting consumer-grade gear to professional audio equipment. It effectively eliminates ground loop hum and noise while ensuring proper signal matching between unbalanced and balanced connections.
$99.00
at
eBay
Who it's for
- Audio engineers integrating pro and consumer gear
- Producers needing clean signal matching without degradation
- Touring musicians requiring rugged, reliable equipment
Who should skip it
- Users wanting a simple, power-free setup
- Budget-conscious buyers preferring passive solutions
- Recordists needing microphone or instrument level handling
Performance breakdown
Signal Integrity
Extremely low noise floor ensures your audio remains pristine and transparent.
Versatility
Bidirectional conversion handles complex routing between consumer and professional gear effortlessly.
Level Matching
Independent volume controls allow for precise gain staging across both channels.
Build Quality
Compact, durable chassis stands up well to regular studio or stage use.
Connectivity Options
The added 3.5mm input provides a convenient bridge for modern mobile devices.
Ease of Setup
Requires external power, which adds a cable but ensures consistent, reliable performance.
Key Specs
Channels
2
THD
0.003%
Noise Floor
-88dB
Input Impedance
RCA: 100 kΩ, XLR: 10 kΩ, 3.5mm Stereo: 10 kΩ
Output Impedance
RCA: 100 Ω, XLR: 100 Ω
Dimensions
W = 5.17", H = 1.68", D = 3.95"
Weight
1 lbs (0.45 kg)
Power Supply
+15VDC/500mA via included adapter
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