diff --git a/server/src/index.ts b/server/src/index.ts
index 90da983..99d67ad 100644
--- a/server/src/index.ts
+++ b/server/src/index.ts
@@ -941,6 +941,8 @@ app.post('/api/volume', (req: Request, res: Response) => {
       // Kein aktiver Player: nur persistieren für nächste Wiedergabe
       persistedState.volumes[guildId] = safeVolume;
       writePersistedState(persistedState);
+      // Broadcast neue Lautstärke an alle Clients
+      sseBroadcast({ type: 'volume', guildId, volume: safeVolume });
       return res.json({ ok: true, volume: safeVolume, persistedOnly: true });
     }
     state.currentVolume = safeVolume;
@@ -950,6 +952,8 @@ app.post('/api/volume', (req: Request, res: Response) => {
     }
     persistedState.volumes[guildId] = safeVolume;
     writePersistedState(persistedState);
+    // Broadcast neue Lautstärke an alle Clients
+    sseBroadcast({ type: 'volume', guildId, volume: safeVolume });
     return res.json({ ok: true, volume: safeVolume });
   } catch (e: any) {
     console.error('Volume-Fehler:', e);
@@ -1075,7 +1079,7 @@ app.get('/api/events', (req: Request, res: Response) => {
 
   // Snapshot senden
   try {
-    res.write(`data: ${JSON.stringify({ type: 'snapshot', party: Array.from(partyActive), selected: persistedState.selectedChannels ?? {} })}\n\n`);
+    res.write(`data: ${JSON.stringify({ type: 'snapshot', party: Array.from(partyActive), selected: persistedState.selectedChannels ?? {}, volumes: persistedState.volumes ?? {} })}\n\n`);
   } catch {}
 
   // Ping, damit Proxies die Verbindung offen halten
diff --git a/web/src/App.tsx b/web/src/App.tsx
index ca441a9..6b7899c 100644
--- a/web/src/App.tsx
+++ b/web/src/App.tsx
@@ -106,6 +106,15 @@ export default function App() {
             setSelected(newVal);
           }
         } catch {}
+        try {
+          const vols = msg?.volumes || {};
+          const cur = selectedRef.current || '';
+          const gid = cur ? cur.split(':')[0] : '';
+          if (gid && typeof vols[gid] === 'number') {
+            const v = vols[gid];
+            setVolume(v);
+          }
+        } catch {}
       } else if (msg?.type === 'channel') {
         try {
           const gid = msg.guildId;
@@ -116,6 +125,16 @@ export default function App() {
             if (curGid === gid) setSelected(`${gid}:${cid}`);
           }
         } catch {}
+      } else if (msg?.type === 'volume') {
+        try {
+          const gid = msg.guildId;
+          const v = msg.volume;
+          const cur = selectedRef.current || '';
+          const curGid = cur ? cur.split(':')[0] : '';
+          if (gid && curGid === gid && typeof v === 'number') {
+            setVolume(v);
+          }
+        } catch {}
       }
     });
     return () => { try { unsub(); } catch {} };