The first delivery is unfortunately stuck at customs due to missing account. The seller but reacted immediately and delivered promptly substitute. The product itself is like in the other reviews already described a sound sensation. Now I can not compare with any high-end components directly, but the amplifier is now two 50 Watt heco boxes in use, and listen to music in a clarity like never before. From the volume ago he hands loosely around a 40m² living room to provide sound loudest. Would I buy me at any time.