diff --git a/src/main/java/de/richardliebscher/mdf4/extract/impl/RecordReaderFactory.java b/src/main/java/de/richardliebscher/mdf4/extract/impl/RecordReaderFactory.java
index cff2d1d..f8431a4 100644
--- a/src/main/java/de/richardliebscher/mdf4/extract/impl/RecordReaderFactory.java
+++ b/src/main/java/de/richardliebscher/mdf4/extract/impl/RecordReaderFactory.java
@@ -122,15 +122,16 @@ private static ValueReadFactory createChannelReaderFactory(
         .resolve(ChannelConversionBlock.TYPE, input);
     if (channelConversion.isPresent()) {
       final var cc = channelConversion.get();
+      final var vals = cc.getVals();
       switch (cc.getType()) {
         case IDENTITY:
           converted = rawValue;
           break;
         case LINEAR:
-          converted = (in, scope) -> new LinearConversion(cc, rawValue.build(in, scope));
+          converted = (in, scope) -> new LinearConversion(vals, rawValue.build(in, scope));
           break;
         case RATIONAL:
-          converted = (in, scope) -> new RationalConversion(cc, rawValue.build(in, scope));
+          converted = (in, scope) -> new RationalConversion(vals, rawValue.build(in, scope));
           break;
         case ALGEBRAIC:
         case INTERPOLATED_VALUE_TABLE:
@@ -1055,7 +1056,7 @@ private static <B, R> Pair<List<ReadIntoFactory<B>>, List<Channel>> buildExtract
               dataGroupBlock, channelGroupBlock, ch.getBlock(), input);
           channels.add(ch);
           channelReaders.add((in, scope) ->
-              new ReadIntoImpl<>(deserializeInto, channelReaderFactory.build(input, scope)));
+              new ReadIntoImpl<>(deserializeInto, channelReaderFactory.build(in, scope)));
         }
       } catch (NotImplementedFeatureException exception) {
         log.warning("Ignoring channel '" + ch.getName() + "': " + exception.getMessage());
diff --git a/src/main/java/de/richardliebscher/mdf4/extract/read/LinearConversion.java b/src/main/java/de/richardliebscher/mdf4/extract/read/LinearConversion.java
index e739940..f272bc2 100644
--- a/src/main/java/de/richardliebscher/mdf4/extract/read/LinearConversion.java
+++ b/src/main/java/de/richardliebscher/mdf4/extract/read/LinearConversion.java
@@ -5,7 +5,6 @@
 
 package de.richardliebscher.mdf4.extract.read;
 
-import de.richardliebscher.mdf4.blocks.ChannelConversionBlock;
 import de.richardliebscher.mdf4.extract.de.UnsignedLong;
 import de.richardliebscher.mdf4.extract.de.Visitor;
 import java.io.IOException;
@@ -16,9 +15,9 @@ public class LinearConversion implements ValueRead {
   private final double p2;
   private final ValueRead inner;
 
-  public LinearConversion(ChannelConversionBlock cc, ValueRead valueRead) {
-    this.p1 = Double.longBitsToDouble(cc.getVals()[0]);
-    this.p2 = Double.longBitsToDouble(cc.getVals()[1]);
+  public LinearConversion(long[] ccVals, ValueRead valueRead) {
+    this.p1 = Double.longBitsToDouble(ccVals[0]);
+    this.p2 = Double.longBitsToDouble(ccVals[1]);
     this.inner = valueRead;
   }
 
diff --git a/src/main/java/de/richardliebscher/mdf4/extract/read/RationalConversion.java b/src/main/java/de/richardliebscher/mdf4/extract/read/RationalConversion.java
index 7493674..b166602 100644
--- a/src/main/java/de/richardliebscher/mdf4/extract/read/RationalConversion.java
+++ b/src/main/java/de/richardliebscher/mdf4/extract/read/RationalConversion.java
@@ -5,7 +5,6 @@
 
 package de.richardliebscher.mdf4.extract.read;
 
-import de.richardliebscher.mdf4.blocks.ChannelConversionBlock;
 import de.richardliebscher.mdf4.extract.de.UnsignedLong;
 import de.richardliebscher.mdf4.extract.de.Visitor;
 import java.io.IOException;
@@ -20,8 +19,7 @@ public class RationalConversion implements ValueRead {
   private final double p6;
   private final ValueRead inner;
 
-  public RationalConversion(ChannelConversionBlock cc, ValueRead valueRead) {
-    final var vals = cc.getVals();
+  public RationalConversion(long[] vals, ValueRead valueRead) {
     this.p1 = Double.longBitsToDouble(vals[0]);
     this.p2 = Double.longBitsToDouble(vals[1]);
     this.p3 = Double.longBitsToDouble(vals[2]);