Extend your high-quality audio-over-fiber transmissions for miles with the Sescom 2-Channel Audio-over-Fiber Extender Kitfrom Sescom. Whether you are in a broadcast studio, stadium, theater, or in the field, the SES-X-FA2 two-unit system can transmit audio up to 12.4 miles over single-mode fiber or up to 984' over multi-mode fiber.

The transmitter unit features two balanced XLR inputs, and the receiver unit two XLR outputs, and each channel on the transmitter can be switched from line to mic level as required. Providing 24-bit, 48 kHz audio quality and a signal-to-noise ratio greater than 85 dB, the units transmit clean, high-quality, crosstalk-free audio. The units are portable and can each run on a single 9V battery, or they can each be powered by an included AC adapter.

Two-Channel Analog-to-Fiber Extender    2 x Portable Tx and Rx Units    2 x Balanced XLR Connectors Each Unit    Transmission Range up to 12.4 Miles    24-Bit, 48 kHz Digitally Encoded Audio    Switchable Balanced Mic or Line Level    AC or Battery Operated

Two units work together to transmit and receive 24-bit, 48 kHz, digitally encoded, 2-channel analog audio over single- or multi-mode fiber

Each unit provides a Simplex ST fiber connector; the Tx unit provides two balanced XLR inputs, and the Rx unit provides two XLR outputs. The Tx unit has a line/mic switch to control each XLR input

Signal range is 12.4 miles over single-mode fiber and 984 feet over multi-mode fiber

The units are portable and each run on one 9V battery with a runtime of approximately four hours. An AC power adapter is also included for each unit

Related Questions and Answers

Q: 1. will this let me connect stereo mini headphones to optical audio output. If not, which device will let me do that?

A: The Sescom SES-DAC1 Audio Converter has TOSLink Optical S/PDIF input and RCA coaxial S/PDIF input with analog stereo RCA output. As is, you can't connect headphones, but it should work if you use a dual RCA male to 3.5mm TRS female Y-adapter like the Hosa Technology Stereo Mini (3.5mm) Female to 2 RCA Male Y-Cable (B&H # HOYCSMF2RM).

Q: 2. Can this equipment be used by connecting to the boom microphone in the field?

A: If your boom microphone doesn't need 48V phantom power, or if you add phantom power in-line after the Sescom IL-19 In-Line Audio Hum Eliminator, you'd be able to use it with your mic.

Q: 3. What's the difference between IL-19 & IL-99SS ? Which one will be good to reduce passive electric guitar hum & ground noise . Also which hum eliminator will be good for active bass guitar ?

A: Hi Nabil. Essentially, there is a slight variation in the circuitry on the IL-19-SS model versus the standard IL-19, which our engineers did in order to make the unit more closely mimic the older, metal-barreled IL-19s that Sescom made back in the 80s and 90s. Both units currently utilize an ABS plastic housing, and when the change to that housing was made, some people found that it didn’t ground as well to the chassis of older racks and cabinets as the old metal ones did, and hence the IL-19-SS was created to combat that. I would suggest the standard IL-19 first, as that tends to work for most people and most situations and I don’t think the IL-19-SS would offer any particular advantage in an active bass situation. Thank you!

Q: 4. I just ordered this and it is not working. Trying to eliminate a hum on blue bottle condenser mic. When plugged in I get another frequency hum and no mic signal. Am I doing something wrong or is this thing defective?

A: Being transformer-based, the Sescom IL-19 In-Line Audio Hum Eliminator inherently blocks the 48V phantom power that your condenser mic requires.

Q: 5. Is this unit for speaker level adjustment or just line level?

A: I bought this unit for line level control and it works great

Q: 6. Someone know how is this product wired ? Hot in pin 2 or 3 ?I work in Europe and I wonder if I can use this product without phase issue... Thanks !

A: This product maintains phase: pin 1:1, pin 2:2, and pin 3:3, coupled through a special high end audio transformer that is of a proprietary design and has excellent frequency response.

Q: 7. Will this work with line level and mic level signals?

A: Hi Alvin.I have used it very successfully at line level. Works perfectly. However I see no reason why it would not work at mic level. Keep in mind that it is an isolating transformer, so if using microphones requiring phantom power such as condensers/electrets, phantom power being DC, the hum eliminator will block this so you will need to ensure your source of phantom power is fitted to the mic side rather than the mixer/preamp side. So if your phantom power is supplied by the mixer/preamp you will then require a separate phantom power supply. If using dynamic mic's or if otherwise phantom power is not required, this is not an issue and the you will be good to go. Hope this helps. Frank

Q: 8. will this pass intercom voltage through it? I'm having serious hum when connecting an RTS 2w system to a clear-com 2w system

A: No, the IL-19 does not pass voltage with audio signal. I believe what you need to use is an intercom interface which is a system-to-system adapter designed to connect two intercom systems together and eliminate issues that create grounding and signal mismatch. Perhaps the Telex SSA324 2 Channel, 2-Wire to 4-Wire Intercom System Interface Converter with Call Signal (B&H # TESSA324) may work for you since it can be used to connect 2-wire systems to 2-wire systems. This item is special order and our details are limited so here is a link to the manufacturer's product info page which also provides links to the user manual and specs: https://products.rtsintercoms.com/na/en/ssa-324/ I would also suggest that you contact tech support at RTS to be certain that the SSA324 is compatible with your RTS and Clear-Com systems. Just let them know which two systems you have so they can confirm. There is a "Contact" link on the upper right side of the RTS page that directs you to phone and live chat contacts. Please let us know if you need further assistance. You can reach B&H by phone at 800-606-6969 or through live chat on the website.

Q: 9. Can all inputs and outputs be used at the same time without losing any sound power?

A: The Sescom SES-XLR-RGAB2 is an A/B switch, so only one output can be active at one time.

Q: 10. What is the highest bitrate frequency for the toslink I/O and for the coax I/O - 96kHz or 192kHz?

A: The TOSLINK and COAX sample rate options for the Vanco PulseAudio Digital-Analog Audio Extender are 48k, 96k, or 192k at 16-bit, 18-bit, or 24-bit.