RDL SF-NP100A – Dante to 100 W 70V/100V Amplifier is backordered and will ship as soon as it is back in stock.
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What is the RDL SF-NP100A?
The RDL SF-NP100A is a Dante (or AES67) network amplifier that converts one network audio channel to a 100 W RMS, 70 V or 100 V constant-voltage output. It receives four network channels: one drives the amplifier and three are converted to RDL Format-A to feed additional amplifiers or receivers. Plenum rated to UL 2043 with an included 48 Vdc supply and remote level control, it is a compact Dante 70V amplifier for paging and background music zones.
How does it work?

The amplifier delivers 100 W for a network level of 0 dBFS, with Dante sample rates of 44.1 kHz, 48 kHz, 88.2 kHz or 96 kHz at 24 bits. The other three Dante channels feed Format-A pairs A, B and C on an RJ45 output, so one network drop can also serve other amplifiers or Format-A receivers. Input gain is set with a single-turn rear-panel potentiometer and a dual-LED VU meter calibrated to 10 dB below maximum output. An internal VCA sets the amplifier level, controlled from a RDL D-RLC10KM remote level control on the REMOTE CONTROL RJ45 jack, an external 10 kΩ pot or a 0 to 10 Vdc control voltage. A selectable, aurally transparent compressor adds up to 15 dB of headroom, and thermal and short-circuit protection guard the output stage. The high-efficiency Class D design produces minimal heat at any program level. A green front-panel LED confirms Dante sync. It runs from the included external 48 Vdc supply in an all-metal SysFlex enclosure for free-standing, surface or rack mounting. Expand the zone with the RDL SF-MA100A mixer amplifier or SF-PA100A amplifier on the Format-A output, or use Format-A receivers such as the D-TPR1A and SF-TPR24A.
What are the key features?
- Dante or AES67 input — Receives four network audio channels from Dante or AES67 sources.
- 100 W constant-voltage output — Drives 70 V or 100 V speaker lines at 100 W RMS.
- Format-A output — Three network channels feed Format-A pairs A, B and C for more amplifiers or receivers.
- Up to 96 kHz — Selectable sample rates of 44.1, 48, 88.2 and 96 kHz.
- Remote level control — Works with RDL D-RLC10KM-type wall controls over RJ45.
- No software required — Module setup does not require special software.
- Built-in compressor — Selectable compressor adds up to 15 dB of headroom.
- Protected Class D — Efficient Class D output with thermal and short-circuit protection.
- Plenum rated — Rated per UL 2043 for air-handling spaces.
- Power supply included — Ships with an external 48 Vdc supply.
Where is it typically used?
- Multi-purpose room
- Commercial meeting space
- Training room
- House of worship
- Government space
Technical Specifications
| Model | SF-NP100A (SysFlex series) |
| Network Connector | RJ45 with Link and Speed indicators |
| Digital Audio Ethernet Protocol | Dante or AES67 |
| Digital Audio Sources (4) | 1) Power amplifier input, 2) Format-A Pair A output; 3) Format-A Pair B output; 4) Format-A Pair C output |
| Transmission Rate | 100 Mbps |
| Sample Rates Supported | 44.1 kHz, 48 kHz (default), 88.2 kHz, 96 kHz |
| Bit Depth Supported | 24 bits |
| Output: RDL TP Format-A | |
| Output Connection | RJ45 |
| Frequency Response | 20 Hz to 20 kHz (± 0.5 dB) |
| THD+N | < 0.01% |
| Noise below +4 dBu | < 80 dB |
| Crosstalk | Below noise floor (20 Hz to 20 kHz, -18 dBFS) |
| Headroom above +4 dBu | > 18 dB |
| Power amplifier | |
| Power Amplifier Output | 100 W RMS (70 or 100 V) |
| Frequency Response | +0/-3 dB (50 Hz to 20 kHz; -0.25 dB typical at 20 kHz) |
| THD+N | < 1% (100 W) |
| Noise | <-85 dB (below max power); <-75 dB (below 1/8 power) |
| Audio Metering | Dual-LED VU Meter calibrated to 10 dB below full output power |
| Compressor | Selectable (IN/OUT), Threshold 2 dB below rated output, automatic adjusting attack and release times; adds 15 dB headroom to power amplifier input |
| Gain Adjustment | Single turn audio taper; sets maximum gain |
| VCA | RJ45, 0 to 10 Vdc control (see RDL D*-RLC10M type wall controls) |
| Indicators (6) | Front-panel: Ready (green), Overload Shutdown (red), Rear-panel: dual-LED VU meter (2), Format-A Power (green), SYNC (green) |
| Ambient Operating Environment | 32° F to 122° F (0° C to 50° C) |
| Power Supply (included) | 100 to 240 Vac, 50-60 Hz, IEC C14; Output to module: 48 Vdc |
| Plenum Rating Standard | UL 2043 |
| Dimensions | Height: 1.68 in. (4.27 cm); Width: 8.71 in. (22.12 cm); Depth: 7.8 in. (19.81 cm) |
Frequently Asked Questions
Does it work with AES67?
Yes. RDL lists it as compatible with Dante or AES67 network audio sources.
How much power does it deliver?
100 W RMS on a 70 V or 100 V line for a 0 dBFS network signal.
What are the other three network channels used for?
They are converted to Format-A pairs A, B and C on an RJ45 output to feed more amplifiers or Format-A receivers.
Can the volume be controlled from the wall?
Yes. Connect an RDL D-RLC10KM-type remote level control, an external 10 kΩ pot or a 0 to 10 Vdc control voltage to the REMOTE CONTROL jack.
Is a power supply included?
Yes. An external 48 Vdc supply (100 to 240 Vac, IEC C14) is included.
Is it plenum rated?
Yes, per UL 2043.
What warranty does it carry?
This product is covered by a 7-year RDL warranty. For warranty claims, RMAs or support, contact Creation Networks at (888) 230-3661 or sales@creationnetworks.net.
Can Creation Networks help design the system?
Yes. Our team specifies, programs and installs Dante paging and 70 V audio systems for commercial projects nationwide. Call (888) 230-3661 for a quote or design review.
At Creation Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.
- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
- We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.
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