Use of the HR-2 Headphone Remote Stations

SP-20AB MANUAL

two top (red) terminals. In this case, nothing should be connected to the bottom (black) terminals. Positive polarity will be on the left channel (red) terminal.

SATELLITE/REMOTE OUTPUT: This output is a single male XLR connector containing both the left and right channel outputs. It is wired as follows: Pin 3 -left (high); Pin 2 - right (high); and Pin 1 - low, common to both channels. This output should be used as the starting point for a chain of HR-2 Remote Stations (satellites). It necessary, it may also be used to connect a second set of speakers. This output is also turned on and off by the SPEAKERS button. This output should not be used with HR-2 Stations when in Mono Bridged mode.

INPUTS: The SP-20AB is equipped with left and right balanced female XLR connectors. Balanced lines offer the beneﬁ ts of cancellation of hum, noise, and RF interference which may be picked up in the interconnecting cables. For balanced connections, shielded twisted pair cable must be used. The wiring is as follows: Pin 1-shield; Pin 2-signal positive; and Pin 3- signal negative.

other applications. The HR-2 units are compact boxes which easily attach with a thumbscrew to any microphone stand Each HR-2 has two stereo volume controls and two headphone jacks. There are also two XLR connectors, one male and one female. These may be used to “daisy chain” HR-2 boxes together with standard microphone cables.

Begin the chain at the SATELLITE/REMOTE connector on the rear of the SP-20AB, as shown in the above diagram. The SP-20AB connects to the ﬁ rst HR 2 box; another mic cable connects the ﬁ rst HR-2 box to the second HR-2 box-, a third mic cable connects the second HR-2 to the third HR-2; and so on. If low impedance headphones are used, up to twelve HR-2’s may be in the chain. If medium or high impedance headphones are used, 25 or more Remote Stations may be chained.

If desired, the clip on an HR-2 box may be hung on a belt it no microphone stand is convenient.

Use of the HR-2 Headphone Remote Stations

The HR-2 Remote Stations may be used to increase the number of headphones which can be accommodated by an SP-20AB, and to place a volume control within easy reach of each individual needing it. This allows the SP-20AB to be used to power a headphone system for a recording studio, rehearsal studio, language lab, demonstration of audio equipment, or for

Daisy-chaining HR-2 Remote

Stations to the SP-20AB

SP-20ABE, SP-20AB specifications

Furman Sound is a name synonymous with high-quality power management solutions for professional audio, video, and broadcast systems. Among their impressive lineup, the SP-20AB and SP-20ABE power conditioners stand out as essential tools for those who demand reliability and performance in their setups.

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