diff --git a/src/include/86box/snd_sb.h b/src/include/86box/snd_sb.h
index 51822f210..394b1b249 100644
--- a/src/include/86box/snd_sb.h
+++ b/src/include/86box/snd_sb.h
@@ -28,12 +28,14 @@
 
 enum {
     SADLIB  = 1,     /* No DSP */
-    SB_DSP_105,      /* DSP v1.05, Original CT1320 (Also known as CT1310) */
+    SB_DSP_103,      /* DSP v1.03, "killer card" prototype (Also known as CT1310) */
+    SB_DSP_105,      /* DSP v1.05, Original CT1320 */
     SB_DSP_200,      /* DSP v2.00 */
     SB_DSP_201,      /* DSP v2.01 - needed for high-speed DMA, Seen on CT1350B with CT1336 */
     SB_DSP_202,      /* DSP v2.02 - Seen on CT1350B with CT1336A */
     SBPRO_DSP_300,   /* DSP v3.00 */
-    SBPRO2_DSP_302,  /* DSP v3.02 + OPL3 */
+    SBPRO_DSP_301,   /* DSP v3.01 */
+    SBPRO_DSP_302,   /* DSP v3.02 */
     SB16_DSP_404,    /* DSP v4.05 + OPL3 */
     SB16_DSP_405,    /* DSP v4.05 + OPL3 */
     SB16_DSP_406,    /* DSP v4.06 + OPL3 */
diff --git a/src/include/86box/snd_sb_dsp.h b/src/include/86box/snd_sb_dsp.h
index 200912c42..b73508211 100644
--- a/src/include/86box/snd_sb_dsp.h
+++ b/src/include/86box/snd_sb_dsp.h
@@ -11,6 +11,7 @@
 #define SB_SUBTYPE_CLONE_AZTPR16_0X09  3 /* Aztech Sound Galaxy Pro 16 Extra */
 #define SB_SUBTYPE_ESS_ES688           4 /* ESS Technology ES688 */
 #define SB_SUBTYPE_ESS_ES1688          5 /* ESS Technology ES1688 */
+#define SB_SUBTYPE_MVD201              6 /* Mediavision MVD201, found on the thunderboard and PAS16 */
 
 /* ESS-related */
 #define IS_ESS(dsp) ((dsp)->sb_subtype >= SB_SUBTYPE_ESS_ES688)    /* Check for future ESS cards here */
diff --git a/src/sound/snd_ad1816.c b/src/sound/snd_ad1816.c
index 4e929794d..d47f70a04 100644
--- a/src/sound/snd_ad1816.c
+++ b/src/sound/snd_ad1816.c
@@ -819,7 +819,7 @@ ad1816_init(const device_t *info)
     ad1816->sb->opl_enabled = 1;
 
     sb_dsp_set_real_opl(&ad1816->sb->dsp, FM_YMF262);
-    sb_dsp_init(&ad1816->sb->dsp, SBPRO2_DSP_302, SB_SUBTYPE_DEFAULT, ad1816);
+    sb_dsp_init(&ad1816->sb->dsp, SBPRO_DSP_302, SB_SUBTYPE_DEFAULT, ad1816);
     sb_dsp_setaddr(&ad1816->sb->dsp, ad1816->cur_sb_addr);
     sb_dsp_setirq(&ad1816->sb->dsp, ad1816->cur_irq);
     sb_dsp_setirq(&ad1816->sb->dsp, ad1816->cur_dma);
diff --git a/src/sound/snd_azt2316a.c b/src/sound/snd_azt2316a.c
index 08fca0f87..b7f981d5c 100644
--- a/src/sound/snd_azt2316a.c
+++ b/src/sound/snd_azt2316a.c
@@ -1835,7 +1835,7 @@ azt_init(const device_t *info)
         fm_driver_get(FM_YMF262, &azt2316a->sb->opl);
 
     sb_dsp_set_real_opl(&azt2316a->sb->dsp, 1);
-    sb_dsp_init(&azt2316a->sb->dsp, SBPRO2_DSP_302, azt2316a->type, azt2316a);
+    sb_dsp_init(&azt2316a->sb->dsp, SBPRO_DSP_302, azt2316a->type, azt2316a);
     sb_dsp_setaddr(&azt2316a->sb->dsp, azt2316a->cur_addr);
     sb_dsp_setirq(&azt2316a->sb->dsp, azt2316a->cur_irq);
     sb_dsp_setdma8(&azt2316a->sb->dsp, azt2316a->cur_dma);
diff --git a/src/sound/snd_cmi8x38.c b/src/sound/snd_cmi8x38.c
index d4490ac23..826f44bb0 100644
--- a/src/sound/snd_cmi8x38.c
+++ b/src/sound/snd_cmi8x38.c
@@ -877,7 +877,7 @@ cmi8x38_write(uint16_t addr, uint8_t val, void *priv)
             dev->sb->dsp.sbleftright_default = !!(val & 0x02);
 
             /* Enable or disable SB16 mode. */
-            dev->sb->dsp.sb_type = (val & 0x01) ? SBPRO2_DSP_302 : SB16_DSP_405;
+            dev->sb->dsp.sb_type = (val & 0x01) ? SBPRO_DSP_302 : SB16_DSP_405;
             break;
 
         case 0x22:
diff --git a/src/sound/snd_optimc.c b/src/sound/snd_optimc.c
index 5ea5d773c..0bad013ff 100644
--- a/src/sound/snd_optimc.c
+++ b/src/sound/snd_optimc.c
@@ -1095,7 +1095,7 @@ optimc_init(const device_t *info)
     optimc->fm_type = (info->local & OPTIMC_OPL4) ? FM_YMF278B : FM_YMF262;
 
     sb_dsp_set_real_opl(&optimc->sb->dsp, optimc->fm_type != FM_YMF278B);
-    sb_dsp_init(&optimc->sb->dsp, SBPRO2_DSP_302, SB_SUBTYPE_DEFAULT, optimc);
+    sb_dsp_init(&optimc->sb->dsp, SBPRO_DSP_302, SB_SUBTYPE_DEFAULT, optimc);
     sb_dsp_setaddr(&optimc->sb->dsp, optimc->cur_addr);
     sb_dsp_setirq(&optimc->sb->dsp, optimc->cur_irq);
     sb_dsp_setdma8(&optimc->sb->dsp, optimc->cur_dma);
diff --git a/src/sound/snd_pas16.c b/src/sound/snd_pas16.c
index 9b82d580d..d3addf41a 100644
--- a/src/sound/snd_pas16.c
+++ b/src/sound/snd_pas16.c
@@ -2327,7 +2327,7 @@ pas16_init(const device_t *info)
     pas16->has_scsi = (!pas16->type) || (pas16->type == 0x0f);
     fm_driver_get(FM_YMF262, &pas16->opl);
     sb_dsp_set_real_opl(&pas16->dsp, 1);
-    sb_dsp_init(&pas16->dsp, SB_DSP_201, SB_SUBTYPE_DEFAULT, pas16);
+    sb_dsp_init(&pas16->dsp, SB_DSP_200, SB_SUBTYPE_MVD201, pas16);
     pas16->mpu = (mpu_t *) calloc(1, sizeof(mpu_t));
     mpu401_init(pas16->mpu, 0, 0, M_UART, device_get_config_int("receive_input401"));
     sb_dsp_set_mpu(&pas16->dsp, pas16->mpu);
diff --git a/src/sound/snd_sb.c b/src/sound/snd_sb.c
index c2193869d..de9b71f9b 100644
--- a/src/sound/snd_sb.c
+++ b/src/sound/snd_sb.c
@@ -3170,7 +3170,7 @@ sb_pro_v2_init(UNUSED(const device_t *info))
         fm_driver_get(FM_YMF262, &sb->opl);
 
     sb_dsp_set_real_opl(&sb->dsp, 1);
-    sb_dsp_init(&sb->dsp, SBPRO2_DSP_302, SB_SUBTYPE_DEFAULT, sb);
+    sb_dsp_init(&sb->dsp, SBPRO_DSP_302, SB_SUBTYPE_DEFAULT, sb);
     sb_dsp_setaddr(&sb->dsp, addr);
     sb_dsp_setirq(&sb->dsp, device_get_config_int("irq"));
     sb_dsp_setdma8(&sb->dsp, device_get_config_int("dma"));
@@ -3226,7 +3226,7 @@ sb_pro_mcv_init(UNUSED(const device_t *info))
     fm_driver_get(FM_YMF262, &sb->opl);
 
     sb_dsp_set_real_opl(&sb->dsp, 1);
-    sb_dsp_init(&sb->dsp, SBPRO2_DSP_302, SB_SUBTYPE_DEFAULT, sb);
+    sb_dsp_init(&sb->dsp, SBPRO_DSP_302, SB_SUBTYPE_DEFAULT, sb);
     sb_ct1345_mixer_reset(sb);
 
     sb->mixer_enabled = 1;
@@ -3258,7 +3258,7 @@ sb_pro_compat_init(UNUSED(const device_t *info))
     fm_driver_get(FM_YMF262, &sb->opl);
 
     sb_dsp_set_real_opl(&sb->dsp, 1);
-    sb_dsp_init(&sb->dsp, SBPRO2_DSP_302, SB_SUBTYPE_DEFAULT, sb);
+    sb_dsp_init(&sb->dsp, SBPRO_DSP_302, SB_SUBTYPE_DEFAULT, sb);
     sb_ct1345_mixer_reset(sb);
 
     sb->mixer_enabled = 1;
@@ -3938,7 +3938,7 @@ ess_x688_init(UNUSED(const device_t *info))
     fm_driver_get(info->local ? FM_ESFM : FM_YMF262, &ess->opl);
 
     sb_dsp_set_real_opl(&ess->dsp, 1);
-    sb_dsp_init(&ess->dsp, SBPRO2_DSP_302, info->local ? SB_SUBTYPE_ESS_ES1688 : SB_SUBTYPE_ESS_ES688, ess);
+    sb_dsp_init(&ess->dsp, SBPRO_DSP_301, info->local ? SB_SUBTYPE_ESS_ES1688 : SB_SUBTYPE_ESS_ES688, ess);
     sb_dsp_setaddr(&ess->dsp, addr);
     sb_dsp_setirq(&ess->dsp, device_get_config_int("irq"));
     sb_dsp_setdma8(&ess->dsp, device_get_config_int("dma"));
@@ -4050,7 +4050,7 @@ ess_x688_pnp_init(UNUSED(const device_t *info))
     fm_driver_get(info->local ? FM_ESFM : FM_YMF262, &ess->opl);
 
     sb_dsp_set_real_opl(&ess->dsp, 1);
-    sb_dsp_init(&ess->dsp, SBPRO2_DSP_302, info->local ? SB_SUBTYPE_ESS_ES1688 : SB_SUBTYPE_ESS_ES688, ess);
+    sb_dsp_init(&ess->dsp, SBPRO_DSP_301, info->local ? SB_SUBTYPE_ESS_ES1688 : SB_SUBTYPE_ESS_ES688, ess);
     sb_dsp_setdma16_supported(&ess->dsp, 0);
     ess_mixer_reset(ess);
 
@@ -4136,7 +4136,7 @@ ess_x688_mca_init(UNUSED(const device_t *info))
     fm_driver_get(info->local ? FM_ESFM : FM_YMF262, &ess->opl);
 
     sb_dsp_set_real_opl(&ess->dsp, 1);
-    sb_dsp_init(&ess->dsp, SBPRO2_DSP_302, info->local ? SB_SUBTYPE_ESS_ES1688 : SB_SUBTYPE_ESS_ES688, ess);
+    sb_dsp_init(&ess->dsp, SBPRO_DSP_301, info->local ? SB_SUBTYPE_ESS_ES1688 : SB_SUBTYPE_ESS_ES688, ess);
     sb_dsp_setdma16_supported(&ess->dsp, 0);
     ess_mixer_reset(ess);
 
diff --git a/src/sound/snd_sb_dsp.c b/src/sound/snd_sb_dsp.c
index 8adb46c5d..275c90576 100644
--- a/src/sound/snd_sb_dsp.c
+++ b/src/sound/snd_sb_dsp.c
@@ -85,20 +85,22 @@ char     sb202_copyright[] = "COPYRIGHT(C) CREATIVE TECHNOLOGY PTE. LTD. (1991)
 char     sb16_copyright[]  = "COPYRIGHT (C) CREATIVE TECHNOLOGY LTD, 1992.";
 uint16_t sb_dsp_versions[] = {
     0,     /* Pad */
-    0,     /* SADLIB      - No DSP */
+    0,     /* SADLIB          - No DSP */
+    0x103, /* SB_DSP_103      - SB "killer card" prototype, DSP v1.03 */
     0x105, /* SB_DSP_105      - SB1/1.5, DSP v1.05 */
     0x200, /* SB_DSP_200      - SB1.5/2, DSP v2.00 */
     0x201, /* SB_DSP_201      - SB1.5/2, DSP v2.01 - needed for high-speed DMA */
     0x202, /* SB_DSP_202      - SB2, DSP v2.02 */
-    0x300, /* SB_PRO_DSP_300  - SB Pro, DSP v3.00 */
-    0x302, /* SBPRO2_DSP_302 - SB Pro 2, DSP v3.02 + OPL3 */
-    0x404, /* SB16_DSP_404        - DSP v4.04 + OPL3 */
-    0x405, /* SB16_405        - DSP v4.05 + OPL3 */
-    0x406, /* SB16_406        - DSP v4.06 + OPL3 */
-    0x40b, /* SB16_411        - DSP v4.11 + OPL3 */
-    0x40c, /* SBAWE32         - DSP v4.12 + OPL3 */
-    0x40d, /* SBAWE32PNP      - DSP v4.13 + OPL3 */
-    0x410  /* SBAWE64         - DSP v4.16 + OPL3 */
+    0x300, /* SBPRO_DSP_300   - SB Pro, DSP v3.00 */
+    0x301, /* SBPRO_DSP_301   - SB Pro/Pro 2, DSP v3.01 */
+    0x302, /* SBPRO_DSP_302   - SB Pro/Pro 2, DSP v3.02 */
+    0x404, /* SB16_DSP_404    - DSP v4.04 + OPL3 */
+    0x405, /* SB16_DSP_405    - DSP v4.05 + OPL3 */
+    0x406, /* SB16_DSP_406    - DSP v4.06 + OPL3 */
+    0x40b, /* SB16_DSP_411    - DSP v4.11 + OPL3 */
+    0x40c, /* SBAWE32_DSP_412 - DSP v4.12 + OPL3 */
+    0x40d, /* SBAWE32_DSP_413 - DSP v4.13 + OPL3 */
+    0x410  /* SBAWE64_DSP_416 - DSP v4.16 + OPL3 */
 };
 
 /*These tables were 'borrowed' from DOSBox*/
@@ -1614,7 +1616,7 @@ sb_exec_command(sb_dsp_t *dsp)
             break;
         case 0xA0: /* Set input mode to mono */
         case 0xA8: /* Set input mode to stereo */
-            if ((dsp->sb_type < SBPRO_DSP_300) || (dsp->sb_type > SBPRO2_DSP_302))
+            if ((dsp->sb_type < SBPRO_DSP_300) || (dsp->sb_type > SBPRO_DSP_302))
                 break;
             /* TODO: Implement. 3.xx-only command. */
             break;
@@ -1859,12 +1861,12 @@ sb_exec_command(sb_dsp_t *dsp)
              *  059h           Fetches the samples and then immediately plays them back.    SB???
              *  078h           Auto-init DMA ADPCM                                 SB2???
              *  07Ah           2.6-bit ADPCM                                       SB???
-             *  0E3h           DSP Copyright                                       SBPro2??? (SBPRO2_DSP_302)
-             *  0F0h           Sine Generator                                      SB        (SB_DSP_105, DSP20x)
-             *  0F1h           DSP Auxiliary Status (Obsolete)                     SB-Pro2   (DSP20x, SBPRO2_DSP_302)
-             *  0F2h           IRQ Request, 8-bit                                  SB        (SB_DSP_105, DSP20x)
+             *  0E3h           DSP Copyright                                       SBPro2??? (SBPRO_DSP_302)
+             *  0F0h           Sine Generator                                      SB        (SB_DSP_105, SB_DSP_20x)
+             *  0F1h           DSP Auxiliary Status (Obsolete)                     SB-Pro2   (SB_DSP_20x, SBPRO_DSP_302)
+             *  0F2h           IRQ Request, 8-bit                                  SB        (SB_DSP_105, SB_DSP_20x)
              *  0F3h           IRQ Request, 16-bit                                 SB16
-             *  0F4h           Perform ROM checksum                                SB        (SB_DSP_105, DSP20x)
+             *  0F4h           Perform ROM checksum                                SB        (SB_DSP_105, SB_DSP_20x)
              *  0FBh           DSP Status                                          SB16
              *  0FCh           DSP Auxiliary Status                                SB16
              *  0FDh           DSP Command Status                                  SB16
@@ -2236,7 +2238,7 @@ sb_dsp_init(sb_dsp_t *dsp, int type, int subtype, void *parent)
            a set frequency command is sent. */
         recalc_sb16_filter(0, 3200 * 2);
     }
-    if (IS_ESS(dsp) || (dsp->sb_type >= SBPRO2_DSP_302)) {
+    if (IS_ESS(dsp) || (dsp->sb_type >= SBPRO_DSP_302)) {
         /* OPL3 or dual OPL2 is stereo. */
         if (dsp->sb_has_real_opl)
             recalc_opl_filter(FREQ_49716 * 2);
diff --git a/src/sound/snd_ymf701.c b/src/sound/snd_ymf701.c
index c6b1467c8..c599eed9e 100644
--- a/src/sound/snd_ymf701.c
+++ b/src/sound/snd_ymf701.c
@@ -419,7 +419,7 @@ ymf701_init(const device_t *info)
     ymf701->sb->opl_enabled = 1;
 
     sb_dsp_set_real_opl(&ymf701->sb->dsp, 1);
-    sb_dsp_init(&ymf701->sb->dsp, SBPRO2_DSP_302, SB_SUBTYPE_DEFAULT, ymf701);
+    sb_dsp_init(&ymf701->sb->dsp, SBPRO_DSP_302, SB_SUBTYPE_DEFAULT, ymf701);
     sb_dsp_setaddr(&ymf701->sb->dsp, ymf701->cur_sb_addr);
     sb_dsp_setirq(&ymf701->sb->dsp, ymf701->cur_sb_irq);
     sb_dsp_setdma8(&ymf701->sb->dsp, ymf701->cur_sb_dma);
diff --git a/src/sound/snd_ymf71x.c b/src/sound/snd_ymf71x.c
index 70ccf6872..4886e69b8 100644
--- a/src/sound/snd_ymf71x.c
+++ b/src/sound/snd_ymf71x.c
@@ -712,7 +712,7 @@ ymf71x_init(const device_t *info)
     ymf71x->sb->opl_enabled = 1;
 
     sb_dsp_set_real_opl(&ymf71x->sb->dsp, 1);
-    sb_dsp_init(&ymf71x->sb->dsp, SBPRO2_DSP_302, SB_SUBTYPE_DEFAULT, ymf71x);
+    sb_dsp_init(&ymf71x->sb->dsp, SBPRO_DSP_302, SB_SUBTYPE_DEFAULT, ymf71x);
     sb_ct1345_mixer_reset(ymf71x->sb);
 
     ymf71x->sb->opl_mixer = ymf71x;