User manual ROLLS HE18

[. . . ] If you've got hum or buzz in your audio signal, the HE18 is the solution you need. [. . . ] We suggest saving the shipping carton and packing materials for safely transporting the unit in the future. OPERATION To insert the HE18 in a system with a buzz or hum, disconnect the device you suspect is causing the noise. Connect that device's Output MADE IN THE USA the Inputs (1/4" or RCA), and to either of connect the HE18 Output(s) to the next device in the signal INPUT OUTPUT chain. RIGHT got a buzz in your video system, conFor example; if you've nect the HE18 between the video unit and amplifier to isolate the signals. PLEASE NOTE: THE HE18 IS INTENDED TO RECEIVE LEFT LINE LEVEL (0db to +4 dB) SIGNALS. DO NOT CONNECT INPUT OUTPUT A MICROPHONE LEVEL SIGNAL OR A SPEAKER (POWERED) LEVEL SIGNAL TO THIS UNIT. THE OUTPUT BUZZ OFFAMPLIFIER) WILL CAUSE PEROF A POWER MANENT DAMAGE TO THE HE18. WARRANTY For information on the Rolls One Year Limited Warranty, and to register this product, visit our website at www. rolls. com DESCRIPTION INPUT(S): OUTPUT(S): 2 ea; 1/4" Tip-Ring-Sleeve jacks 2 ea; RCA jacks 2 ea; 1/4" Tip-Ring-Sleeve jacks 2 ea; RCA jacks RIGHT INPUT BUZZ OFF HE18 L RIGHT OUTPUT R INPUT MADE IN THE USA R OUTPUT L Removes buzz or hum caused by ground loops Requires no power Converts unbalanced signals to balanced LEFT INPUT LEFT OUTPUT BUZZ OFF HE18 INPUT DIAGRAM Max Out: Max In: Input Impedance: Output Impedance: THD: Weight: Size: Bal: +18 dB Unbal: +12 dB Bal: +22 dB Unbal: +22 dB RCA: 10 k Ohm 1/4": 10 k Ohm balanced RCA: 10 k Ohm 1/4": 10 k Ohm balanced . 05% @ 1 kHz 1 lbs. [. . . ] Simply connect the offending line into the input, and connect the output to your next device. - Helps eliminate ground hum and buzz - Dual channel - No power required - completely passive - Converts balanced to unbalanced lines and vice versa HE18 Buzz Off [. . . ]