Loudspeakers Plus accepts various types of coupons. They offer promo codes that can be used to get discounts on their products. There are also deals where you can get a $15 gift voucher. They offer free shipping on certain purchases. Additionally, they have deals where you can save up to 90% on certain items. Please note that only one coupon code can be used per order. It's recommended to apply the code that gives you the best discount. However, the availability of these coupons and deals may vary, so it's always a good idea to check their website or sign up for their newsletter to stay updated.