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Flexport with Balanced Audio Inputs



Ideal for push-to-talk microphones, FlexPort™ Audio Input Transmitters serve as remote input modules for SonaFlex™ SF-16M Matrix Amplifiers. FPM-B accepts three- or four-wire microphone or mixer outputs for the SonaFlex system via Cat 5. FlexPort transmitters are available in several different styles, including balanced line XLR, digital SPDIF and analog RCA audio signals. Audio signals are transmitted to an SF-16M via Cat 5e/6/7 cable up to 500 feet and made available to specified amplified outputs, and can be shared with up to three additional SF-16M amplifiers. Each transmitter has a convenient override button, and the FPM-B includes an optional connection for override via microphone push-to-talk switch. Removable, four-wire termination plug.


Key Features

  • Provides convenient remote input point for pro-audio sources such as mixers and paging microphones
  • Convenient Override switch provides a simple user interface at the transmitter location
  • Override connection mimics override switch functionality for push-to-talk microphones
  • Differential balanced line technology eliminates interference, enabling FlexPort transmitters to be located up to 500 feet away from the SF-16M without signal degradation
  • Up to four FlexPort transmitters may be used with one SF-16M
  • Simple connection via one Cat 5/6/7 cable; daisy chain two FlexPort transmitters on each SF-16M input

About the SonaFlex SF-16M

The SF-16M digital matrix amplifier is a unique blend of multi-channel amplification, flexible input options, audio matrix switching, signal processing and open control capability. Designed and assembled in the U.S. with sound and video integrators in mind, the SF-16M offers a new approach to commercial and residential distributed audio applications - one multi-purpose matrix amplifier that can be used in a variety of installations.
  • Input switching, signal processing, and amplification in one unified system
  • 16 analog RCA inputs combined with four Cat 5 “FlexPort” input channels allow for a total 20 mono/10 stereo matrixed inputs
  • 16 amplified outputs can be configured as mono, stereo, or a combination of stereo and mono
  • Up to four SF-16M units can be linked together to form a powerful 16 input x 64 output audio matrix, plus FlexPort inputs
  • Linear power supply delivers the warmth and musicality of an analog amplifier, combined with the responsiveness and headroom required for dynamic music content
  • DSP tools include hi- and low-shelf filters, hi- and low-pass filters, and up to seven bands of parametric equalization per output
  • 10 audio overrides (triggered by contact closure, IR, or RS-232, commands) provide a convenient method to switch to alternate audio inputs for appplications such as paging, local source selection, and room combining
  • 10 preset sound scenes (a system-wide snap-shot of all volume and source settings) can be saved and recalled using IR, RS-232 or IP commands
  • 10 audio groups allow multiple outputs to be grouped to share volume ramping, muting, and source selection
  • Compatible with virtually any control system available using RS-232, Ethernet or IR commands- NEW Control4 Driver for SF-16M Control4 Driver for SF-16M (110.55 KiB)


Compatible FlexPort Cat 5 Audio Transmitters

  • FPM-U accepts one stereo audio source or two mono sources for transmission to the SF-16M
  • FPM-X accepts mic or line audio, via XLR or 1/4 inch jack, from microphone or mixer outputs
  • FPM-D accepts one digital audio source, converting it to analog for transmission to the SF-16 (plus RCA for local analog output)
Audio Authority FPM-B

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S/N Ratio: 96dB
Channel Separation: 70dB(channel to channel @1kHz)
Input Sensitivity:  0.5Vrms
Input Z Impedance: FPM-U: 20k Ohms, FPM-D: 75 Ohms, FPM-X and FPM-B: 2k Ohms
Accepted Bit Rates (FPM-D) 44.1, 48, or 96KHz 
Dimensions (H x W x D): 4 x 1.65 x 3.65 including mounting tabs; 2.8 x 1.65 x 3.65 without tabs (inches)
Net Weight: 9.5 oz. (270g)
Shipping Weight: 12 oz. (340g)
Approvals FCC
Warranty: Two years, parts and labor

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