Description
The ST-PA6 is a compact 6 watt audio power amplifier designed to provide clean, reliable amplification in small-scale audio installations. It delivers 6 watts RMS into an 8 Ohm speaker and combines amplification with a built-in two-input mixer. The unit is engineered to offer low noise and low distortion in a compact package that is cost effective.
Key features include two balanced audio inputs for flexible wiring, a single gain control, and an adjustable loudness equalization control. Inputs are actively bridged and summed to allow easy monitoring of stereo sources through a single speaker. The output stage includes protection against short circuits and thermal overload with automatic reset functionality.
Performance characteristics include a frequency response of 35 Hz to 20 kHz with ±1.5 dB variance when EQ is flat, THD+N under 0.35 percent, and noise below -60 dB. The equalization control provides selectable low-frequency boost options of up to +5 dB at 60 Hz, +4 dB at 100 Hz, and +3 dB at 120 Hz. The amplifier meets rated power output when driven with a minimum input level of 400 mV RMS.
Connectivity is straightforward with two 100 kOhm balanced inputs that may be wired balanced or unbalanced and a single 8 Ohm unbalanced speaker output. Inputs are mixed internally so two sources can be monitored or combined without external mixing hardware. The unit is powered from a ground-referenced 24 Vdc supply drawing 400 mA.
Typical applications include paging or background music in small retail spaces, monitoring in broadcast or production environments, and source summing for stereo content monitoring. The ST-PA6 is suitable where a small footprint amplifier with summing capability and tone control is required. It provides a practical solution for installations that need modest power, simple control, and dependable protection.
Installation is simple and straightforward, with a compact enclosure that ships in a small cardboard box. The output protection circuit automatically resets after fault conditions clear, eliminating the need for external fuses and reducing downtime. Overall construction emphasizes reliability and economical ownership while delivering consistent audio performance.
Free Ground Shipping
We offer free ground shipping on every purchase of $300 and more for US and US territory. Please choose "Free Ground Shipping (UPS/USPS)" option at checkout.
UPS Ground
UPS provides up-to-date tracking information. Ground service takes anywhere from 2-7 working days for delivery depending on destinations. UPS Ground does not deliver on Saturdays, Sundays or Holidays.
USPS Priority Mail/USPS Express Mail
For all shipments shipped via USPS, we offer 'DELIVERY CONFIRMATION' number with each package. Difference between tracking number provided by UPS vs USPS Delivery Confirmation number is: Delivery Confirmation status is updated when the delivery has been made or when the package has made it through major USPS stations.
Air Shipment
Air shipments, Overnight, 2nd day and 3 day select methods offer guaranteed delivery time for your shipment. If you are in hurry or in need for the items on schedule, select one of these methods. Up-to-date tracking information is provided with each Air Shipment. AVProSupply has the right to choose between Air shipments to meet or reduce delivery time. For guaranteed delivery of multiple items with expedited shipping, please contact our customer service representative for personalized assistance to get your items delivered to you when you need them.
International Customers
We offer shipping via USPS/UPS for our international customers. You can find different shipping options during checkout.
Most items ordered from AVProSupply will be shipped out from our California Warehouse. Will-Calls are only allowed with Appointment Only - Please call Customer Service to set one up between the hours of 9am to 6pm PST.
We Offer A 30-Day Money Back Guarantee:
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.
Refunds:
Refunds on returned items will be issued in the same payment form as received from the customer at the time of purchase. Once we receive the product and it passes inspection, we will credit your account. Please allow 3 - 6 business days for a credit to appear on your account.
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
