diff --git a/sound/isa/opti9xx/opti92x-ad1848.c b/sound/isa/opti9xx/opti92x-ad1848.c
index ea4a67120468..b0ea310c87de 100644
--- a/sound/isa/opti9xx/opti92x-ad1848.c
+++ b/sound/isa/opti9xx/opti92x-ad1848.c
@@ -547,32 +547,40 @@ static int __devinit snd_opti9xx_configure(struct snd_opti9xx *chip,
 
 #ifdef OPTi93X
 
-static const DECLARE_TLV_DB_SCALE(db_scale_6bit, -9450, 150, 0);
+static const DECLARE_TLV_DB_SCALE(db_scale_5bit_3db_step, -9300, 300, 0);
+static const DECLARE_TLV_DB_SCALE(db_scale_5bit, -4650, 150, 0);
+static const DECLARE_TLV_DB_SCALE(db_scale_4bit_12db_max, -3300, 300, 0);
 
 static struct snd_kcontrol_new snd_opti93x_controls[] = {
 WSS_DOUBLE("Master Playback Switch", 0,
 		OPTi93X_OUT_LEFT, OPTi93X_OUT_RIGHT, 7, 7, 1, 1),
 WSS_DOUBLE_TLV("Master Playback Volume", 0,
 		OPTi93X_OUT_LEFT, OPTi93X_OUT_RIGHT, 1, 1, 31, 1,
-		db_scale_6bit),
-WSS_DOUBLE("PCM Playback Volume", 0,
-		CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 0, 0, 31, 1),
-WSS_DOUBLE("FM Playback Volume", 0,
-		CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 1, 1, 15, 1),
+		db_scale_5bit_3db_step),
+WSS_DOUBLE_TLV("PCM Playback Volume", 0,
+		CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 0, 0, 31, 1,
+		db_scale_5bit),
+WSS_DOUBLE_TLV("FM Playback Volume", 0,
+		CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 1, 1, 15, 1,
+		db_scale_4bit_12db_max),
 WSS_DOUBLE("Line Playback Switch", 0,
 		CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 7, 7, 1, 1),
-WSS_DOUBLE("Line Playback Volume", 0,
-		CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 0, 0, 15, 1),
+WSS_DOUBLE_TLV("Line Playback Volume", 0,
+		CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 0, 0, 15, 1,
+		db_scale_4bit_12db_max),
 WSS_DOUBLE("Mic Playback Switch", 0,
 		OPTi93X_MIC_LEFT_INPUT, OPTi93X_MIC_RIGHT_INPUT, 7, 7, 1, 1),
-WSS_DOUBLE("Mic Playback Volume", 0,
-		OPTi93X_MIC_LEFT_INPUT, OPTi93X_MIC_RIGHT_INPUT, 1, 1, 15, 1),
-WSS_DOUBLE("CD Playback Volume", 0,
-		CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 1, 1, 15, 1),
+WSS_DOUBLE_TLV("Mic Playback Volume", 0,
+		OPTi93X_MIC_LEFT_INPUT, OPTi93X_MIC_RIGHT_INPUT, 1, 1, 15, 1,
+		db_scale_4bit_12db_max),
+WSS_DOUBLE_TLV("CD Playback Volume", 0,
+		CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 1, 1, 15, 1,
+		db_scale_4bit_12db_max),
 WSS_DOUBLE("Aux Playback Switch", 0,
 		OPTi931_AUX_LEFT_INPUT, OPTi931_AUX_RIGHT_INPUT, 7, 7, 1, 1),
-WSS_DOUBLE("Aux Playback Volume", 0,
-		OPTi931_AUX_LEFT_INPUT, OPTi931_AUX_RIGHT_INPUT, 1, 1, 15, 1),
+WSS_DOUBLE_TLV("Aux Playback Volume", 0,
+		OPTi931_AUX_LEFT_INPUT, OPTi931_AUX_RIGHT_INPUT, 1, 1, 15, 1,
+		db_scale_4bit_12db_max),
 };
 
 static int __devinit snd_opti93x_mixer(struct snd_wss *chip)