diff --git a/sys/dev/sound/isa/mss.c b/sys/dev/sound/isa/mss.c
index 17ec66e53baf..8f02d45e0a96 100644
--- a/sys/dev/sound/isa/mss.c
+++ b/sys/dev/sound/isa/mss.c
@@ -313,12 +313,12 @@ mss_alloc_resources(struct mss_info *mss, device_t dev)
 	if (ok) {
 		mss->pdma = rman_get_start(mss->drq1);
 		isa_dma_acquire(mss->pdma);
-		isa_dmainit(mss->pdma, DSP_BUFFSIZE);
+		isa_dmainit(mss->pdma, MSS_BUFFSIZE);
 		mss->bd_flags &= ~BD_F_DUPLEX;
 		if (mss->drq2) {
 			mss->rdma = rman_get_start(mss->drq2);
 			isa_dma_acquire(mss->rdma);
-			isa_dmainit(mss->rdma, DSP_BUFFSIZE);
+			isa_dmainit(mss->rdma, MSS_BUFFSIZE);
 			mss->bd_flags |= BD_F_DUPLEX;
 		} else mss->rdma = mss->pdma;
 	}
diff --git a/sys/dev/sound/isa/sb.c b/sys/dev/sound/isa/sb.c
index 12aced9d8c28..1b501a4000b8 100644
--- a/sys/dev/sound/isa/sb.c
+++ b/sys/dev/sound/isa/sb.c
@@ -418,12 +418,14 @@ sb_alloc_resources(struct sb_info *sb, device_t dev)
 					      RF_ACTIVE);
 
     	if (sb->io_base && sb->drq1 && sb->irq) {
+		int bs = (sb->bd_flags & BD_F_ESS)? ESS_BUFFSIZE : DSP_BUFFSIZE;
+
 		isa_dma_acquire(rman_get_start(sb->drq1));
-		isa_dmainit(rman_get_start(sb->drq1), DSP_BUFFSIZE);
+		isa_dmainit(rman_get_start(sb->drq1), bs);
 
 		if (sb->drq2) {
 			isa_dma_acquire(rman_get_start(sb->drq2));
-			isa_dmainit(rman_get_start(sb->drq2), DSP_BUFFSIZE);
+			isa_dmainit(rman_get_start(sb->drq2), bs);
 		}
 
 		return 0;
diff --git a/sys/dev/sound/isa/sb16.c b/sys/dev/sound/isa/sb16.c
index 12aced9d8c28..1b501a4000b8 100644
--- a/sys/dev/sound/isa/sb16.c
+++ b/sys/dev/sound/isa/sb16.c
@@ -418,12 +418,14 @@ sb_alloc_resources(struct sb_info *sb, device_t dev)
 					      RF_ACTIVE);
 
     	if (sb->io_base && sb->drq1 && sb->irq) {
+		int bs = (sb->bd_flags & BD_F_ESS)? ESS_BUFFSIZE : DSP_BUFFSIZE;
+
 		isa_dma_acquire(rman_get_start(sb->drq1));
-		isa_dmainit(rman_get_start(sb->drq1), DSP_BUFFSIZE);
+		isa_dmainit(rman_get_start(sb->drq1), bs);
 
 		if (sb->drq2) {
 			isa_dma_acquire(rman_get_start(sb->drq2));
-			isa_dmainit(rman_get_start(sb->drq2), DSP_BUFFSIZE);
+			isa_dmainit(rman_get_start(sb->drq2), bs);
 		}
 
 		return 0;
diff --git a/sys/dev/sound/isa/sb8.c b/sys/dev/sound/isa/sb8.c
index 12aced9d8c28..1b501a4000b8 100644
--- a/sys/dev/sound/isa/sb8.c
+++ b/sys/dev/sound/isa/sb8.c
@@ -418,12 +418,14 @@ sb_alloc_resources(struct sb_info *sb, device_t dev)
 					      RF_ACTIVE);
 
     	if (sb->io_base && sb->drq1 && sb->irq) {
+		int bs = (sb->bd_flags & BD_F_ESS)? ESS_BUFFSIZE : DSP_BUFFSIZE;
+
 		isa_dma_acquire(rman_get_start(sb->drq1));
-		isa_dmainit(rman_get_start(sb->drq1), DSP_BUFFSIZE);
+		isa_dmainit(rman_get_start(sb->drq1), bs);
 
 		if (sb->drq2) {
 			isa_dma_acquire(rman_get_start(sb->drq2));
-			isa_dmainit(rman_get_start(sb->drq2), DSP_BUFFSIZE);
+			isa_dmainit(rman_get_start(sb->drq2), bs);
 		}
 
 		return 0;