The early recordings of Anton Bruckner's symphonies with Daniel Barenboim and the Chicago Symphony Orchestra achieved cult status soon after their first release. This was all the more true as they were hardly available on CD for many years and thus became coveted collector's items. The outstanding recording of the 4th Symphony from 1971 is now being reissued on vinyl for the first time To mark its 125th anniversary, Deutsche Grammophon has launched the reissue of legendary recordings in the highest sound quality: The audiophile vinyl series The Original Source presents outstanding recordings from the 1970s in a completely new sound quality. The renowned Emil Berliner Studios have remastered and edited the original four-track tapes in 100% analog quality (AAA) using technologies specially developed for the production of the series. The sonic differences to the original releases are considerable: greater clarity, more subtleties and improvements in the frequency response, as well as less background noise, distortion and compression make for an audiophile listening experience like never before. The copies of this series will be released on 180g vinyl records and in a deluxe gatefold edition with original covers and lyrics, limited and numbered, accompanied by additional photos and facsimiles of the recording logs and tape boxes, as well as an article explaining the exact technical background.