diff --git a/aplay/aplay.c b/aplay/aplay.c
index 50e01ef..07e6bc0 100644
--- a/aplay/aplay.c
+++ b/aplay/aplay.c
@@ -526,7 +526,7 @@
 			break;
 		case 'c':
 			rhwparams.channels = strtol(optarg, NULL, 0);
-			if (rhwparams.channels < 1 || rhwparams.channels > 32) {
+			if (rhwparams.channels < 1 || rhwparams.channels > 256) {
 				error(_("value %i for channels is invalid"), rhwparams.channels);
 				return 1;
 			}
@@ -1015,7 +1015,7 @@
 	if (hwparams.rate < 2000 || hwparams.rate > 256000)
 		return -1;
 	hwparams.channels = BE_INT(ap->channels);
-	if (hwparams.channels < 1 || hwparams.channels > 128)
+	if (hwparams.channels < 1 || hwparams.channels > 256)
 		return -1;
 	if ((size_t)safe_read(fd, buffer + sizeof(AuHeader), BE_INT(ap->hdr_size) - sizeof(AuHeader)) != BE_INT(ap->hdr_size) - sizeof(AuHeader)) {
 		error(_("read error"));