Have been looking for some data on GHG detection. Hackmann writes that:
Hackmann, W.D., Sonar Research and Naval Warfare 1914-1954: A Case Study of a Twentieth-Century"The effectiveness of her listening gear was amply demonstrated during the war. Her captain boasted that his ship had been the target of many torpedo attacks but was hit only once, thanks to the warning given by her passive sonar array."
Establishment Science, in: Historical Studies in the Physical and Biological Sciences, Vol. 16, No. 1 (1986), pp. 83-110 (86).
Unfortunately, Hackmann does not reference his comment on PE´s captain´s statement. I deduced that except for the well known case of long range detection at Denmark Strait, which has been covered elsewhere, the most likely event is either in Norway or during the Channel Dash, where the cruiser was subject to repeated torpedo attacks. MDV 601 Heft 1 covers the Channel Dash in general and seems to substantiate the claim on page 26 while covering the engagement of the english destroyers with GNEISENAU and PRINZ EUGEN:
"Die englischen Zerstörer schießen Torpedos, denen die Deutschen Schiffe teils nach Sicht, teils nach Horchung ausweichen."
" the english destroyers fire torpedoes, which are evaded by the german vessels in part (followed) by optical and in part by acoustic detection".
The amazing feature for me in this case (compare similar cases of torpedo detection by the GHG in TIRPITZ´s war diaries) stands with the fact that
(a) detection was in relatively shallow water
(b) detection was in noisy ambient conditions (poor seastate, many vessels) and attained at relatively high speed (>27kts)
(c) the detection was during an gunnery engagement (there is at least one source suggetsing that the GHG doesn´t work then) further worsening the ambient listening conditions
That´s why I am looking for the PE war diary of this period, maybe it contains more information?