Model: CR-277 | Brand: SAMSON
Thank you for choosing the Samson CR-277-HH Handheld Wireless System. This system is designed to provide reliable and high-quality audio transmission for various applications, including live performances, presentations, and public speaking. It features a dual UHF wireless receiver and two dynamic handheld microphone transmitters, ensuring clear and consistent sound.
This manual provides detailed instructions for setting up, operating, maintaining, and troubleshooting your CR-277-HH system. Please read it thoroughly before use to ensure optimal performance and longevity of your equipment.

Figure 1: The Samson CR-277-HH Handheld Wireless System, showing the CR277 dual UHF receiver and two HT7 handheld microphone transmitters.
Carefully unpack all components and inspect them for any signs of damage. If any item is missing or damaged, contact your dealer immediately.
Il-pakkett għandu jinkludi:

Figure 2: Included components of the Samson CR-277-HH system, showing the receiver, two microphones, power adapter, and connecting cables.
Place the CR277 receiver on a stable, flat surface, away from potential sources of interference such as computers, large metal objects, or other wireless devices. Ensure adequate ventilation around the unit.
Each HT7 handheld microphone transmitter requires one 9-volt battery for operation. To install the battery:
Each transmitter is designed to operate for approximately 12 hours on a single 9-volt battery.
The CR277 receiver features independent level controls for each channel (Ch U1 and Ch U2). Adjust these knobs to set the desired output volume for each microphone. Monitor the multi-segment RF level and peak audio indicators to ensure optimal signal strength without clipping.

Figure 3: Front panel of the CR277 receiver, highlighting the independent level controls, RF level, and peak audio indicators for each channel.
Hold the HT7 microphone approximately 2-6 inches from your mouth for best vocal pickup. The Q7 dynamic microphone element is designed for clear and articulate sound reproduction.
The CR277 receiver includes squelch control for each channel. This feature helps to eliminate unwanted noise when the transmitter signal is weak or absent. Adjust the squelch knob clockwise to increase the squelch threshold, reducing background noise. Adjust it counter-clockwise to decrease the threshold, allowing weaker signals to pass through.
To clean the receiver and microphones, use a soft, dry cloth. For stubborn dirt, a slightly damp cloth can be used, but ensure no moisture enters the internal components. Do not use abrasive cleaners or solvents.
Replace the 9-volt batteries in the HT7 transmitters when the power/battery indicator on the microphone begins to dim or when audio quality degrades. Always use fresh, high-quality alkaline batteries for optimal performance and battery life.
When not in use for extended periods, remove the batteries from the transmitters to prevent leakage. Store the system in a cool, dry place, away from direct sunlight and extreme temperatures.
If you encounter issues with your Samson CR-277-HH system, refer to the table below for common problems and their solutions.
| Problema | Kawża Possibbli | Soluzzjoni |
|---|---|---|
| L-ebda ħoss mill-mikrofonu | Transmitter off or low battery Ir-riċevitur mhux mixgħul Volume levels too low Konnessjoni ħażina tal-kejbil | Ensure transmitter is ON and battery is fresh Verify receiver is powered on Increase volume on receiver and connected audio device Iċċekkja l-konnessjonijiet kollha tal-kejbil tal-awdjo |
| Interferenza jew statika | Apparati oħra mingħajr fili fil-qrib Antennas not properly extended Receiver too far from transmitter Squelch setting too low | Itlaq minn apparati oħra mingħajr fili Ensure antennas are fully extended and positioned correctly Naqqas id-distanza bejn it-trasmettitur u r-riċevitur Increase squelch level on receiver |
| Ħajja qasira tal-batterija | Batteriji qodma jew ta’ kwalità baxxa Użu kontinwu | Use fresh, high-quality alkaline 9-volt batteries Turn off transmitters when not in use |
| Distorsjoni tal-awdjo | Livell ta' input għoli wisq Mikrofonu qrib wisq tas-sors tal-ħoss | Reduce volume on receiver or connected device Increase distance between microphone and sound source |
| Karatteristika | Speċifikazzjoni |
|---|---|
| Numru tal-Mudell | CR-277 |
| Fattur tal-Forma tal-Mikrofonu | Jinżamm fl-idejn |
| Mudell Polari | Omnidirezzjonali |
| Teknoloġija tal-Konnettività | Wireless |
| Numru ta 'Kanali | 2 |
| Power Source (Transmitters) | Batterija 9-volt |
| Battery Life (Transmitters) | Appross. 12 sigħat |
| Riċevitur Outputs | Two independent 1/4-inch, one 1/4-inch mix |
| Impedenza | 600 Ohm |
| Piż tal-oġġett | 1.25 kg (System) |
| Komponenti Inklużi | Batterija |
| Apparati Kompatibbli | Camera (as per specification, though typically audio mixers/PA systems) |
| Użi Rakkomandati | Karaoke |
Samson products are manufactured to the highest standards and are backed by a limited warranty. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Samson websit.
For technical support, service, or replacement parts, please contact your authorized Samson dealer or Samson customer service directly. Keep your purchase receipt as proof of purchase for warranty claims.
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