HR251 - Receiver ROLLS - Free user manual and instructions
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| Product Type | Stereo Receiver |
| Brand | Rolls |
| Model | HR251 |
| Dimensions (W x H x D) | Approx. 17 x 3.5 x 12 inches (430 x 90 x 305 mm) |
| Weight | Approx. 11 lbs (5 kg) |
| Power Supply | AC 120V/240V, 50/60 Hz |
| Power Consumption | 50 W max |
| Frequency Range (AM) | 530 - 1710 kHz |
| Frequency Range (FM) | 87.5 - 108 MHz |
| Output Power | 20 W per channel (RMS) |
| Input Sensitivity | 150 mV (line) |
| Speaker Impedance | 4 - 16 ohms |
| Signal-to-Noise Ratio | > 70 dB |
| Audio Inputs | 2x RCA, 1x 3.5mm auxiliary |
| Audio Outputs | Speaker terminals, 1x RCA (rec out), 1x headphone |
| Controls | Volume, Balance, Bass, Treble, Input Select, Tuner |
| Remote Control | Included |
| Display | LCD with frequency and settings |
| Housing Material | Metal chassis, plastic front panel |
| Cleaning Instructions | Wipe with a dry, soft cloth. Avoid liquid cleaners. |
| Safety Warnings | Do not expose to moisture. Unplug during storms or long disuse. |
| Spare Parts & Reparability | Contact Rolls service for replacements. Not user-serviceable. |
Frequently Asked Questions - HR251 ROLLS
How do I set up my Rolls HR251 receiver?
Connect speakers to the terminals with proper polarity, plug the power cord into a wall outlet, connect audio sources (e.g., CD player) to the RCA inputs, turn the receiver on, select the corresponding input, and adjust volume.
Can I connect a turntable to this receiver?
Yes, if your turntable has a built-in phono preamp. If not, you will need an external phono preamp since the HR251 does not have a dedicated phono input.
What should I do if there is no sound from the speakers?
Check that the speakers are properly connected, the receiver is powered on, the correct input is selected, the volume is turned up, and the mute function is off. Also ensure the source device is playing.
How do I clean the receiver?
Turn off and unplug the receiver. Use a soft, dry cloth to wipe the exterior. For the front panel and display, gently clean with a slightly damp cloth if necessary, then dry immediately. Do not use abrasive cleaners or solvents.
How can I improve AM/FM reception?
For FM, extend the included antenna fully. For AM, use the loop antenna provided and rotate it for best reception. Avoid placing the receiver near metal objects or electronic interference sources.
Can I use the headphone output without speakers connected?
Yes, plugging headphones into the headphone jack will automatically mute the speaker outputs. Adjust the volume as desired.
Is there a remote control included?
Yes, the Rolls HR251 comes with a remote control for basic functions like volume, input selection, and mute. Ensure the remote has batteries and is pointed at the receiver's sensor.
What is the maximum power output per channel?
The receiver delivers 20 watts RMS per channel into 8 ohms, with both channels driven. This is sufficient for moderate listening levels in a small to medium room.
How do I reset the receiver to factory settings?
There is no dedicated reset button. To reset, turn off the receiver, unplug it for about 30 seconds, then plug it back in and turn it on. This will clear any temporary settings issues.
Where can I find spare parts or repair service?
For spare parts or repair, contact Rolls customer service through their official website. The receiver is not user-serviceable; opening it may void warranty. Professional service is recommended.
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USER MANUAL HR251 ROLLS
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Product information
Brand : ROLLS
Model : HR251
Category : Receiver