--- linux-3.13.0/sound/usb/quirks.c.orig        2015-02-13 17:45:21.406145714 +0100
+++ linux-3.13.0/sound/usb/quirks.c     2015-02-13 17:27:24.116413460 +0100
@@ -1135,6 +1135,7 @@ void snd_usb_ctl_msg_quirk(struct usb_de
            (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS) {
 
                switch (le16_to_cpu(dev->descriptor.idProduct)) {
+               case 0x1003: /* Denon DA-300USB */
                case 0x3005: /* Marantz HD-DAC1 */
                case 0x3006: /* Marantz SA-14S1 */
                        mdelay(20);