diff --git a/src/features/dsp408/components/InputSection/InputSection.tsx b/src/features/dsp408/components/InputSection/InputSection.tsx
index 2a1e05f..017078d 100644
--- a/src/features/dsp408/components/InputSection/InputSection.tsx
+++ b/src/features/dsp408/components/InputSection/InputSection.tsx
@@ -514,9 +514,6 @@ function InputSection({
   const [liveLpFreq, setLiveLpFreq] = useState<number>(FREQUENCY_MAX);
   const [livePeq, setLivePeq] = useState<Partial<Record<PEQBand, PEQ>>>({});
 
-  // Forces one extra render after the graph mounts so marker positions
-  // (which read from the graph's ref) are available on first paint.
-  const [, forceRender] = useState(0);
   const magnitudeGraphRef = useRef<LinearGraphHandle>(null);
 
   // DSP values
diff --git a/src/features/dsp408/types.ts b/src/features/dsp408/types.ts
index b96cb84..de81c46 100644
--- a/src/features/dsp408/types.ts
+++ b/src/features/dsp408/types.ts
@@ -1,5 +1,3 @@
-import { FREQUENCY_MAX, FREQUENCY_MIN } from './constants';
-
 export enum DelayUnit {
   Millisecond = 'Millisecond',
   Meter = 'Meter',