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SF-NP50A Network to 50 W Mono Audio Amplifier/70 or 100 V by RDL

SKU: SF-NP50A
SF-NP50A Network to 50 W Mono Audio Amplifier/70 or 100 V by RDL

SF-NP50A Network to 50 W Mono Audio Amplifier/70 or 100 V by RDL

  • $725.12
Market price: $805.69, you save $80.57
  • 10% less
OUT OF STOCK
  • Brand
    RDL
  • SKU
    SF-NP50A
  • Weight
    4.00 lbs
  • Warranty
    3 Years
  • Condition
    New
  • Status
    Available
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Out of stock
The SF-NP50A is an audio power amplifier that converts one Dante network audio channel and one analog input to a 70 V or 100 V constant voltage amplified output. The output provides 50 watts for a network digital audio level of 0 dBFS. Special software is not required to configure the module.
  • Brand
    RDL
  • SKU
    SF-NP50A
  • Weight
    4.00 lbs
  • Warranty
    3 Years
  • Condition
    New
  • Status
    Available
Questions? Ask our experts!

GET A QUOTE
  • $725.12
Market price: $805.69, you save $80.57
  • 10% less


The SF-NP50A is an audio power amplifier that converts one Dante network audio channel and one analog input to a 70 V or 100 V constant voltage amplified output. The output provides 50 watts for a network digital audio level of 0 dBFS. Special software is not required to configure the module.

An analog audio source may be connected to either the mono balanced terminal block input or to the unbalanced Mini-Jack which sums the left and right channels to mono. Input gain is set by the installer using a rear-panel single-turn potentiometer with an associated dual-LED VU meter calibrated to 20 dB below maximum power output.

Either the analog input or the network audio input may be used as a paging source. A rear-panel switch is used to set which input has priority. That input utilizes an automatic detection circuit with an adjustable threshold indicated by an LED to attenuate by 25 dB or mute OFF the other input as set by a rear-panel switch. The attenuated input fades up to normal volume when the paging message is finished.

The Dante network audio source drives a balanced line-level output on a detachable terminal block to feed the inputs of other audio equipment or power amplifiers. The output level is +4 dBu balanced for a network level of -20 dBFS.

The SF-NP50A is equipped with an internal VCA for setting the amplifier output level. A detachable terminal block provides for the connection of an external 10 kΩ potentiometer or a 0 to 10 Vdc control voltage. RDL remote controls are available to provide single-turn, multi-turn (rotary encoder) or pushbutton (ramp or fixed level selection) user level control. VCA control insures long term noise-free level adjustment.

The module is equipped with both thermal and output short-circuit protection. The high-efficiency Class D output stage produces minimal heat for all levels of expected voice or music modulation. Upon power-up and during overloads or overheating, an LED MUTE indicator glows yellow and the output is muted. Valid synchronization to the Dante network is indicated by a green LED visible from the front of the unit.

The SF-NP50A is equipped to operate from an included external 24 Vdc power supply. The SF-NP50A monitors the amplifier power and limits the current to protect the power supply from shutting down even during extreme feedback or square wave modulation conditions. A red rear-panel OVERLOAD PROTECT LED flashes when the SF-NP50A reduces power consumption to prevent shutdown of the power supply.

The SF-NP50A is constructed in a durable, professional all-metal enclosure suitable for free-standing, surface-mounted or rack-mounted operation. This full-featured SYSFLEX product is engineered and manufactured in the U.S.A for continuous duty in demanding installations. The versatility of SYSFLEX products adds enormous flexibility in the design and installation of professional A/V systems.

Features:

  • 50 Watts RMS Constant Voltage Amplifier
  • 70 V or 100 V Output
  • Plenum Rated per UL 2043 Standard
  • Converts One Dante Network Audio Signal to a Mono Constant Voltage Output
  • Selectable Dante Sample Rates: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz
  • 0 dBFS Input for 50 W Output
  • Analog Balanced Mono Input or Unbalanced Stereo Mini-Jack Input
  • Automatic Ducking Controlled by Network or Analog Input (Switch-Selectable)
  • Ducking Attenuation -25 dB or "off" (Switch-Selectable)
  • Balanced Line Output from Network Audio Source
  • Automatically Limits Supply Current to Protect Against Power Supply Shutdown
  • VCA Control on Detachable Terminal Block
  • External Control Using 10 kΩ Potentiometer or 0 to 10 Vdc
  • Compatible with RDL Remote Level Controls
  • Special Software Not Required for Module Setup
  • LED Indicators: Network Sync, Amplifier Mute, Analog Input Level, Ducking Threshold
  • High-Efficiency Class D Operation
  • Thermal and Short-Circuit Protection

Inputs (2):

Dante network (1 channel), Analog audio

Network Input Section

Network Connector:

RJ45 with Link and Speed indicators

Digital Audio Ethernet Protocol:

Dante

Transmission Rate:

100 Mbps

Sample Rates Supported:

44.1 kHz, 48 kHz (default), 88.2 kHz, 96 kHz

Bit Depth Supported:

24 bits

Analog Section

Analog Input Connectors (2):

Balanced on terminal block or stereo unbalanced Mini-Jack (L and R inputs summed to mono)

Balanced Input Level:

+4 dBu nominal, adjustable; -10 dBu minimum (for 20 dB below full output power); +25 dBu maximum (before clipping)

Unbalanced Input Level:

-10 dBV nominal, adjustable; -25 dBV minimum (for 20 dB below full output power); +10 dBV maximum (before clipping)

Gain Adjustment:

Single turn audio taper (with associated Dual-LED VU Meter calibrated to 20 dB below full output power)

Input Impedance:

>10 kΩ balanced, >5 kΩ unbalanced

Common mode rejection:

> 60 dB (50 Hz à 120 Hz)

Ducking/Muting Actuation:

Automatic (Rear-panel adjustable signal threshold with LED indicator)

Ducking/Muting Release Delay:

4 seconds, nominal

Ducking/Muting Source:

Switch-selectable priority for network or analog input

Ducking/Muting Level:

Switch-selectable for 25 dB ducking attenuation (nominal) or OFF

Reference Level (network input):

0 dBFS = 50 W

Power Amplifier Output:

50 W RMS (70 or 100 V)

Frequency Response:

+0/-3 dB (50 Hz to 20 kHz)

THD+N:

< 1% (1 kHz)

Noise:

<-90 dB (below max power); <-80 dB (below 1/8 power)

Indicators (8):

Front-panel: Sync (green), Amplifier muted (yel), Rear-panel: Overload Protect (red), Ethernet Link and Speed (2), dual-LED VU meter (2), Ducking threshold

VCA:

0 to 10 Vdc control, detachable terminal block (compatible with RDL VCA wall controls)

Ambient Operating Environment:

0° C to 40° C Maximum; 20° C Recommended

Power Requirement:

24 Vdc @ 2700 mA

Power Supply (included):

100 to 240 Vac, 50-60 Hz, IEC C14; Output to module: 24 Vdc

Plenum Rating Standard:

UL 2043

Dimensions:

Height: 1.7 in. (4,32 cm); Width: 5.83 in. (14,8 cm); Depth: 6.45 in. (16.38 cm)

Package Type:

Cardboard Box

Package Dimensions:

9.5 x 7 x 2.25 in.

Shipping Weight:

4.19 lbs.

WEEE weight:

3.87 lbs.

Tariff code:

8518.50.0000

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Our main goal is to ensure your complete satisfaction with our service and products. If, for any reason, you are not 100% satisfied with your purchase, you can return it within 30 days of the purchase date for a full refund. Our 30-day money back guarantee applies to all of the products we sell, except for: TVs and monitors 20" and larger, Special Order merchandise, or any item indicated as non-returnable. Shipping is not refundable. Prior to returning your purchase, a Return Merchandise Authorization (RMA) number will be provided to you.

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Exchanges:
If the item was sent back to us for an exchange, please allow 3 - 5 business days for the replacement to be processed.

No Returns/Exchanges on the following:

TVs and monitors 20" and larger
Special Order merchandise
Any item indicated on the website as non-returnable

For more information see our official Return Policy


  • Shipping Info
    We offer free ground shipping on every purchase of $300 and more for US and US territory. We deliver worldwide.
  • Payment Methods

  • Return Policy
    We Offer a 30-Day Money Back Guarantee