RA170 - Receiver ROLLS - Free user manual and instructions
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| Product Type | Professional Audio Receiver |
| Brand | Rolls |
| Model | RA170 |
| Form Factor | 19" Rackmount, 1U |
| Dimensions (W x H x D) | 19 x 1.75 x 6.5 inches (483 x 44 x 165 mm) |
| Weight | 5.5 lbs (2.5 kg) |
| Power Supply | AC 120V, 60Hz (240V, 50Hz for export) |
| Power Consumption | 15W max |
| Audio Inputs | 2 x XLR balanced, 2 x 1/4" TRS balanced/unbalanced |
| Audio Outputs | 2 x XLR balanced, 2 x 1/4" TRS balanced/unbalanced |
| Frequency Response | 20 Hz - 20 kHz, ±0.5 dB |
| Signal-to-Noise Ratio | >100 dB |
| THD+N | <0.01% |
| Input Impedance | 10 kΩ balanced |
| Output Impedance | 100 Ω balanced |
| Controls | Volume, power switch |
| Indicators | Power LED, signal present LEDs |
| Construction | Steel chassis, black finish |
| Safety Features | Internal fuse, grounded power cord |
| Maintenance | Clean with a dry, lint-free cloth; do not use liquids |
| Spare Parts | Contact Rolls or authorized dealers for parts |
| Environmental | Operating temperature: 32°F to 104°F (0°C to 40°C) |
| Warranty | One year limited warranty |
Frequently Asked Questions - RA170 ROLLS
What is the RA170 used for?
The RA170 is a professional audio receiver designed for studio or live sound applications. It provides a clean, balanced audio path with low noise.
How do I connect the RA170 to my system?
Connect audio sources to the XLR or TRS inputs. Connect outputs to your amplifier or powered speakers. Use balanced cables for best noise rejection.
What is the input sensitivity?
The RA170 has an input sensitivity of +4 dBu nominal (balanced), with a maximum input of +20 dBu before clipping.
Can I use unbalanced cables?
Yes, the 1/4" TRS inputs accept unbalanced TS plugs. Use a TRS-to-TS adapter if needed.
How do I power the unit?
Connect the included power cord to a standard AC outlet (120V/60Hz). Ensure the voltage matches your region.
What does the 'Signal' LED indicate?
The Signal LED illuminates when audio is present at the input. It helps verify signal flow.
Can I mount it in a rack?
Yes, the RA170 is a 1U rackmount unit. Use four screws (not included) to secure it to standard 19" rails.
How to clean the RA170?
Disconnect power. Wipe the exterior with a soft, dry cloth. Do not apply liquids directly to the device.
No sound from the output. What to check?
Verify all connections, ensure the power LED is on, check volume knob is not at minimum, and confirm input source is active.
Is the RA170 repairable?
Yes, but only by qualified technicians. Contact Rolls or an authorized service center. Do not attempt to open the unit yourself.
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USER MANUAL RA170 ROLLS
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Product information
Brand : ROLLS
Model : RA170
Category : Receiver