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Soliddrive SD250 2-Channel Class D Mini Amplifier with Built-In EQ

34 dB maximum gain with 2 x 50 watt output. Three operating modes: stereo, mono or bridged mono. Three SolidDrive EQ settings for drywall, wood and glass, plus a full-range flat option (no EQ).
In stock (50 items available)
  • Brand
  • SKU
  • Weight
    2.00 lbs
  • Warranty
    3 Years
  • Condition
  • Status
Product availability status

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  • $260.00
  • Shipping info
    We offer free ground shipping on every purchase of $300 and more for US.
  • Payment Methods

  • Return Policy
    We Offer a 60-Day Money Back Guarantee
  • Weight
    2 lbs
  • SKU
  • Mnf#/Vendor#
The SD250 is a 2-Channel Class D Mini Amplifier with Built-In EQ with 34 dB maximum gain with 2x 50W output & three operating modes: stereo, mono or bridged mono. It features three SolidDrive EQ settings for wood, drywall, and glass, as well as a full-range flat option (no EQ). Three (3) user- definable inputs: stereo unbalanced mini jack, balanced stereo euroblock, or high-level euroblock. It ensures auto-standby signal detecting to conserve energy. It features Rugged aluminum housing.
System Type 50 w per channel (8 ohm) class D amplifier
Frequency Response 20 Hz-20 kHz
Max gain 34 dB (8 ohm)
Power per channel @< 1 %THD 50 watts (8 ohms) 65 watts (4 ohms)
Bridged mono power@< 1 %THD 90 watts (4 ohms)
Power supply requirement 32vDC,3.75A
Signal to noise ratio > 83 dB (50 watts)
Input impedance 47 kohm
Height 30.5 mm (1.2 in.)
Width 99.1 mm (3.9 in.)
Depth 101.6 mm (40 in.)
Weight-amp only 0.26 kg (0.56 lbs)
Packaging One per box
Included accessories Power supply stereo RCA female to mini male adapter, pole/ surface mount adapter, two male 4 pin euroblock connectors and two 3-pin euroblock connectors.
Optional accessory (SD-250) Rack mount adapter (AC-SD-250-RMA)
Regulatory-CE Approved
RoHS Approved
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. BZB Express 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 BZB Express 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.


Major Credit Cards: Visa, MasterCard, Discover and American Express.
Paypal: You can select an option of Paying with Paypal in our shopping cart.
Money orders: and personal checks or company checks (may take up to 10 days to clear).
Wire Transfer: ( Bank Transfer ) only for the amount over $500. Contact us for the bank details.
Phone Orders: To place a phone order please call 1.888.660.2962 or 1.916.246.6263 and one of our Customer Service Representatives will take your order (8:00am - 6.00pm PST).

Purchase order: Fax purchase orders to 1.916.246.6258

We Offer A 60-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 60 days of the purchase date for a full refund. Our 60-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 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.

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