Rolls HE18 Hum Eliminator User Manual

1. Inleiding

The Rolls HE18 Hum Eliminator is a passive audio device designed to remove unwanted hum and buzz caused by ground loops in audio systems. This unit requires no external power and effectively isolates ground paths, converting unbalanced signals to balanced for cleaner audio transmission.

2. Sleutel kenmerke

• Removes buzz or hum caused by ground loops.
• Passive operation, requiring no external power supply.
• Converts unbalanced audio signals to balanced.
• Features both RCA and 1/4" (6.35mm) input/output connections.

3. Belangrike veiligheidsinligting

Please read and understand the following safety guidelines before using the Rolls HE18 Hum Eliminator:

• Moenie die toestel aan vog, reën of uiterste temperature blootstel nie.
• Vermy die plasing van die eenheid naby hittebronne of in direkte sonlig.
• This device is passive and does not require external power. Do not attempt to connect it to a power source.
• Ensure all audio cables are securely connected to prevent signal loss or intermittent operation.
• Moenie probeer om die c oop te maak nieasing or modify the unit. There are no user-serviceable parts inside.

4. Opstelinstruksies

The Rolls HE18 is designed for straightforward integration into your audio system. Follow these steps to connect the device:

4.1 Identifying Connections

The HE18 features both RCA and 1/4" (6.35mm) input and output jacks for stereo audio signals. Each channel (Left and Right) has dedicated input and output connections.

Figuur 1: Voorkant view of the Rolls HE18 Hum Eliminator, illustrating the RCA and 1/4" input and output connections for both left and right channels.

Figuur 2: Kant view of the Rolls HE18 Hum Eliminator, highlighting the 1/4" input and output connections.

4.2 Verbindingstappe

1. Identify the Source and Destination: Determine which audio component is producing the hum (source) and which component is receiving the signal (destination). The HE18 should be placed between these two components.
2. Connect Inputs: Connect the audio output from your source device (e.g., mixer, preamplifier) to the corresponding LEFT INPUT and RIGHT INPUT jacks on the HE18. You can use either RCA cables or 1/4" (6.35mm) TS cables.
3. Connect Outputs: Connect the LEFT OUTPUT and RIGHT OUTPUT jacks of the HE18 to the audio input of your destination device (e.g., amplifier, powered speakers). Ensure you use the same type of cables (RCA or 1/4" TS) as used for the inputs.
4. Krag aan: Once all connections are secure, power on your audio components. The HE18 operates passively and does not require its own power.

The HE18 will automatically isolate the ground paths, reducing or eliminating ground loop hum.

5. Operasie

The Rolls HE18 Hum Eliminator functions as a transparent audio interface. Once connected, it continuously works to isolate ground loops without requiring any user adjustments. Its passive design ensures reliable operation without the need for power adapters or batteries.

6. Onderhoud

The HE18 is a robust device designed for long-term use with minimal maintenance. To ensure optimal performance and longevity:

• Hou die eenheid skoon deur dit met 'n sagte, droë lap af te vee. Vermy die gebruik van vloeibare skoonmaakmiddels of oplosmiddels.
• Bêre die toestel in 'n droë omgewing, weg van direkte sonlig en uiterste temperature.
• Regularly check cable connections to ensure they are secure and free from damage.

7. Probleemoplossing

If you encounter issues while using the HE18, refer to the following troubleshooting guide:

• Hum Persists:
  • Maak seker dat alle oudiokabels volledig ingesit en stewig vas is.
  • Verify that the hum is indeed a ground loop issue. The HE18 is designed to address ground loop hum, not other types of interference (e.g., radio frequency interference, cable noise).
  • Try isolating other components in your audio chain to pinpoint the exact source of the ground loop.
  • Ensure you are connecting the HE18 between the correct components that are part of the ground loop.
• Signal Loss or Degradation:
  • Check the integrity of your audio cables. Replace any damaged cables.
  • Confirm that the HE18 is connected correctly: source output to HE18 input, and HE18 output to destination input.
  • While designed for minimal impact, passive devices can sometimes introduce slight signal attenuation or impedance mismatches depending on the specific characteristics of the connected equipment. If significant degradation occurs, consult the specifications of your other audio components.

8. Tegniese spesifikasies

9. Pakketinhoud

The Rolls HE18 Hum Eliminator package includes:

• 1x Rolls HE18 Hum Eliminator Unit

10. Waarborg en Ondersteuning

For detailed warranty information, product registration, or technical assistance, please visit the official Rolls webwebwerf of kontak hul kliëntediens direk. Bewaar u aankoopbewys as bewys van aankoop vir waarborgeise.