Network to Mic/Line Interface with VCA-Dante Input-2 Balanced Mic/Line Outputs-with PoE

The RDL FP-NML2VP is a network-to-audio interface designed to adapt standard audio amplifiers to a Dante network. It converts two Dante network audio signals into two balanced analog outputs, with each output independently switch-selectable for microphone or line level. Separate VCA control, 24-bit digital-to-analog conversion, PoE operation, and automatic muting make it a focused solution for integrating network audio with conventional amplification equipment.

Ideal Use Cases

This model is well suited to systems that need to deliver two Dante channels to separate amplifiers or other devices accepting balanced mic- or line-level signals. Independent output adjustment allows each channel to be managed for its connected amplifier without affecting the other output. The interface is particularly useful when remote level adjustment is required through RDL or OEM remote controls, a 0 to 10 Vdc control signal, or a 0 to 10 kΩ linear control. Rack-mounting and surface-mounting capability support both equipment-rack and fixed-installation layouts.

Why Choose This Model

The FP-NML2VP combines Dante conversion, output-level selection, and independent VCA control in one compact interface. Its two outputs use detachable terminal blocks and are balanced for professional audio integration. At line level, the outputs provide a nominal +4 dBu with the VCA at maximum. Each VCA offers an audio-taper attenuation range from 0 to more than 90 dB, giving each connected amplifier its own adjustable feed. Support for Class 0 IEEE 802.3af PoE provides a network-based power option, while the unit can also operate from 24 Vdc at 135 mA.

Installation and Integration

Network connectivity is provided through an RJ45 connector with Ethernet Link and Speed indicators. The interface operates at 100 Mbps and supports Dante audio at 44.1 kHz or 48 kHz, with 48 kHz identified as the default sample rate. Three indicators provide Ethernet Link, Ethernet Speed, and SYNC status information. The two analog outputs are presented on a detachable terminal block for balanced wiring. Output impedance is 150 Ω balanced or 75 Ω unbalanced. The enclosure measures 4.85 inches wide, 1.75 inches high, and 3.25 inches deep, allowing installation where equipment space is limited.

Performance Highlights

High-resolution 24-bit digital-to-analog conversion is paired with RDL analog filtering. Frequency response is specified from 20 Hz to 20 kHz within ±0.5 dB, while THD+N is less than 0.1%. The output amplifiers provide more than 18 dB of headroom above +4 dBu. Noise below +4 dBu is specified at less than -80 dB while an output is active and less than -95 dB when the outputs are muted. Crosstalk is specified at less than 90 dB at 1 kHz and less than 80 dB across 20 Hz to 20 kHz. The stated audio operating relationship is 18 dBFS to +4 dBu.

What Makes It Different

Unlike a basic network audio converter, the FP-NML2VP provides a separate VCA for each analog output and lets each output be selected independently for mic- or line-level operation. This makes the two channels adaptable to different downstream input requirements while preserving individual level control. Outputs automatically mute when the digital audio inputs are inactive, helping control unwanted output during a loss of incoming audio. The FP-NML2VP also supports normal or hot-standby operation from PoE, adding flexibility for installations built around IEEE 802.3af network power.

Final Assessment

The FP-NML2VP brings two Dante audio channels into conventional analog amplification systems through balanced, independently controlled outputs. Its combination of mic/line selection, +4 dBu nominal line output, more than 18 dB headroom, 24-bit conversion, remote VCA adjustment, automatic muting, and PoE operation addresses the core requirements of professional network-to-amplifier integration. Rack or surface mounting further supports permanent system deployment without requiring a single mounting approach.