View Larger Image Sennheiser HD600, HD650 with Soloist SL Headphone Amp Detailed and linear sound with great resolution and a touch of tube warm. Works perfectly with listed headphones showing their full potential. By Sales Burson|2017-07-04T17:06:58+10:00July 4th, 2017|Soloist SL|Comments Off on Sennheiser HD600, HD650 with Soloist SL Headphone Amp Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInTumblrPinterestVkEmail