"...compared to the uncorrected version of Bach's "St. John b9b57aae83585e17ede4570dcede353cion", the full program impressed with an incredible increase in precision and audibility. The low bass in Yuri Honing's "Star Tracks", which is not without problems in the living room, suddenly played droning-free and clearly to the point. However, anyone who had listened to the system and the errors induced by the room for a long time could also find the corrections excessive, as he exchanged the previously bulky bass for a rather too slender one; turned the previously warm, sometimes marshy fundamental tone into a merciless precision that high-enders would describe as cool and analytical and that did not quite fit the character of the B &W speakers used. But no problem without a solution: in the "LF + MF' operating mode, which does not require tweeter correction, a perfect balance between audibility and gentleness was achieved - which was even improved in the living room, which is plagued by room fashion, when the Harman was also allowed to measure two subs. In the AUDIO listening room, such corrections were not necessary, after all, it is heavily damped. Here, the HK 990 played the trump cards of performance and neutrality and secured a sovereign place in the high-end class. This makes it not only one of the best-sounding amps in its class, but also far ahead of the competition in terms of equipment and flexibility. Rarely has AUDIO had a component in the test that is worth every euro twice and three times as much..."
"...compared to the uncorrected version of Bach's "St. John b9b57aae83585e17ede4570dcede353cion", the full program impressed with an incredible increase in precision and audibility. The low bass in Yuri Honing's "Star Tracks", which is not without problems in the living room, suddenly played droning-free and clearly to the point. However, anyone who had listened to the system and the errors induced by the room for a long time could also find the corrections excessive, as he exchanged the previously bulky bass for a rather too slender one; turned the previously warm, sometimes marshy fundamental tone into a merciless precision that high-enders would describe as cool and analytical and that did not quite fit the character of the B &W speakers used. But no problem without a solution: in the "LF + MF' operating mode, which does not require tweeter correction, a perfect balance between audibility and gentleness was achieved - which was even improved in the living room, which is plagued by room fashion, when the Harman was also allowed to measure two subs. In the AUDIO listening room, such corrections were not necessary, after all, it is heavily damped. Here, the HK 990 played the trump cards of performance and neutrality and secured a sovereign place in the high-end class. This makes it not only one of the best-sounding amps in its class, but also far ahead of the competition in terms of equipment and flexibility. Rarely has AUDIO had a component in the test that is worth every euro twice and three times as much..."
Rating:
+ powerful, precise amp with good calibration and gigantic equipment
- Phono rather thin
Overall rating: high-end class
Price/performance: outstanding
+ powerful, precise amp with good calibration and gigantic equipment< /li>