50W Mono Audio Amplifier - 70 V or 100 V 7 Year Warranty
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SF-PA50A 50W Mono Audio Amplifier - 70 V or 100 V 7 Year Warranty• 50 Watts RMS Constant Voltage Amplifier• 70 V or 100 V Output• Plenum Rated per UL 2043 Standard• Analog Balanced Mono Input or Unbalanced Stereo Mini-Jack Inpu...
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Estimate delivery times: 12-26 days (International), 3-6 days (United States).
Return within 45 days of purchase. Duties & taxes are non-refundable.
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SF-PA50A 50W Mono Audio Amplifier - 70 V or 100 V 7 Year Warranty
• 50 Watts RMS Constant Voltage Amplifier
• 70 V or 100 V Output
• Plenum Rated per UL 2043 Standard
• Analog Balanced Mono Input or Unbalanced Stereo Mini-Jack Input
• Adjustable Gain with Dual-LED VU Metering
• 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
• LED Indicators: Power Amplifier Mute Analog Input Level
• High-Efficiency Class D Operation
• Thermal and Short-Circuit Protection
The SF-PA50A is a 50 Watt audio power amplifier that converts one analog input to a 70 V or 100 V constant voltage amplified output.
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. Amplifier 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.
The SF-PA50A 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.
The SF-PA50A is equipped to operate from an included external 24 Vdc power supply. The SF-PA50A 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-PA50A reduces power consumption to prevent shutdown of the power supply.
The SF-PA50A 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.
7 Year Warranty
| Features | |
|---|---|
| Warranty | 7 Years |
Shipping Policy
1. Shipping Rates and Delivery Times
We offer a variety of shipping options to meet your needs. Standard shipping typically takes 5-7 business days, while expedited shipping options are available for faster delivery. Please note that delivery times may vary based on your location and the shipping method selected.
2. Processing Time
All orders are processed within 1-2 business days. Orders placed on weekends or holidays will be processed the following business day.
3. Shipping Carriers
We partner with reputable carriers such as [Carrier Names] to ensure reliable delivery.
4. Tracking Your Order
Once your order has shipped, you will receive a tracking number via email so you can monitor its progress.
5. International Shipping
We offer international shipping to select countries. Please be aware that customs fees and import duties may apply, and these charges are the responsibility of the customer.
6. Lost or Damaged Items
If your order is lost or arrives damaged, please contact us within 7 days of receiving your order. We’ll be happy to assist you with a replacement or a refund.
7. Shipping Restrictions
We do not ship to P.O. Boxes or certain restricted countries. Please check our list of excluded locations at checkout.
8. Shipping Costs
Shipping costs are calculated at checkout based on your location and the shipping method chosen.
9. Free Shipping
Enjoy free standard shipping on orders over $1000.
10. Customs and Import Duties
For international orders, customs duties and taxes may apply. These charges are the responsibility of the customer.
11. Contact Us
If you have any questions or need assistance with your order, please contact our customer service team at Hello@CrystalTech.Group or 03335678444.
SF-PA50A 50W Mono Audio Amplifier - 70 V or 100 V 7 Year Warranty
• 50 Watts RMS Constant Voltage Amplifier
• 70 V or 100 V Output
• Plenum Rated per UL 2043 Standard
• Analog Balanced Mono Input or Unbalanced Stereo Mini-Jack Input
• Adjustable Gain with Dual-LED VU Metering
• 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
• LED Indicators: Power Amplifier Mute Analog Input Level
• High-Efficiency Class D Operation
• Thermal and Short-Circuit Protection
The SF-PA50A is a 50 Watt audio power amplifier that converts one analog input to a 70 V or 100 V constant voltage amplified output.
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. Amplifier 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.
The SF-PA50A 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.
The SF-PA50A is equipped to operate from an included external 24 Vdc power supply. The SF-PA50A 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-PA50A reduces power consumption to prevent shutdown of the power supply.
The SF-PA50A 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.
7 Year Warranty
| Features | |
|---|---|
| Warranty | 7 Years |
Shipping Policy
1. Shipping Rates and Delivery Times
We offer a variety of shipping options to meet your needs. Standard shipping typically takes 5-7 business days, while expedited shipping options are available for faster delivery. Please note that delivery times may vary based on your location and the shipping method selected.
2. Processing Time
All orders are processed within 1-2 business days. Orders placed on weekends or holidays will be processed the following business day.
3. Shipping Carriers
We partner with reputable carriers such as [Carrier Names] to ensure reliable delivery.
4. Tracking Your Order
Once your order has shipped, you will receive a tracking number via email so you can monitor its progress.
5. International Shipping
We offer international shipping to select countries. Please be aware that customs fees and import duties may apply, and these charges are the responsibility of the customer.
6. Lost or Damaged Items
If your order is lost or arrives damaged, please contact us within 7 days of receiving your order. We’ll be happy to assist you with a replacement or a refund.
7. Shipping Restrictions
We do not ship to P.O. Boxes or certain restricted countries. Please check our list of excluded locations at checkout.
8. Shipping Costs
Shipping costs are calculated at checkout based on your location and the shipping method chosen.
9. Free Shipping
Enjoy free standard shipping on orders over $1000.
10. Customs and Import Duties
For international orders, customs duties and taxes may apply. These charges are the responsibility of the customer.
11. Contact Us
If you have any questions or need assistance with your order, please contact our customer service team at Hello@CrystalTech.Group or 03335678444.