Robert Helvich (ProMuzik) is a true audiophile and fully trustworthy business partner. Great communication and flawless high price transaction. I very much recommend Robert for any kind of high end buy/sell ...Read more
Robert Helvich (ProMuzik) is a true audiophile and fully trustworthy business partner. Great communication and flawless high price transaction. I very much recommend Robert for any kind of high end buy/sell transaction.
