Today only, Monoprice is taking 20% off sitewide when promo code BIG20 is applied during checkout. There are a few exclusions here, as well as gift cards, but otherwise this is one of the best Monoprice discounts that you’ll see throughout the year. Free shipping is available in most instances.

Our top pick is the Monoprice 15W Tube Amp with Bluetooth for $39.99 (Orig. $80) with the above code. This unique tube amp features 15W of power and Bluetooth connectivity for pairing with a variety of speakers. Its throwback design is particularly attractive for those looking for a chance from the usual black plastic A/V receiver design. Rated 4.5/5 stars.

Other notable Monoprice deals: