# BHK Preamp tube rolling **URL:** \ **Category:** Amplifiers\ **Created:** [October 17, 2016, 8:34am UTC](https://forum.psaudio.com/t/bhk-preamp-tube-rolling/3403 "2016-10-17T08:34:53Z")\ **Posts on this page:** 20\ **Page:** 57
**Author:** ![kaarmstrong](https://avatars.discourse-cdn.com/v4/letter/k/b38774/32.png) [@kaarmstrong](https://forum.psaudio.com/u/kaarmstrong)\ **Post date:** [November 9, 2020, 10:40pm UTC](https://forum.psaudio.com/t/bhk-preamp-tube-rolling/3403/1124 "2020-11-09T22:40:22Z")
Ok. Thanks for the advice! ---
**Author:** ![paul172](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/paul172/32/290439_2.png) [@paul172](https://forum.psaudio.com/u/paul172)\ **Post date:** [November 21, 2020, 6:50am UTC](https://forum.psaudio.com/t/bhk-preamp-tube-rolling/3403/1125 "2020-11-21T06:50:02Z")
Pulled out my stock tubes tonight and I’m trying out NOS Brimar 4003 tubes. Immediately the mids sound cleaner along with vocals! Bass doesn’t seem as deep as it did with PS Vanes. Only about an hour in so I’m curious if they will sound any different with some more burn in time? ---
**Author:** ![jmeniche](https://avatars.discourse-cdn.com/v4/letter/j/838e76/32.png) [@jmeniche](https://forum.psaudio.com/u/jmeniche)\ **Post date:** [November 21, 2020, 8:34am UTC](https://forum.psaudio.com/t/bhk-preamp-tube-rolling/3403/1126 "2020-11-21T08:34:25Z")
Many benefit from a break in of 50-100 hours. ---
**Author:** ![nycenglish](https://avatars.discourse-cdn.com/v4/letter/n/c89c15/32.png) [@nycenglish](https://forum.psaudio.com/u/nycenglish)\ **Post date:** [January 22, 2021, 10:45pm UTC](https://forum.psaudio.com/t/bhk-preamp-tube-rolling/3403/1127 "2021-01-22T22:45:42Z")
Can anyone recommend a good place to get a set of the Telefunken 6DJ8’s (ECC88)? I suppose the E88CC’s should be good too? Thanks! ---
**Author:** ![dawkinsj](https://avatars.discourse-cdn.com/v4/letter/d/a5b964/32.png) [@dawkinsj](https://forum.psaudio.com/u/dawkinsj)\ **Post date:** [January 22, 2021, 11:07pm UTC](https://forum.psaudio.com/t/bhk-preamp-tube-rolling/3403/1128 "2021-01-22T23:07:59Z")
Try Andy at VTS but you need to call not e-mail ---
**Author:** ![nycenglish](https://avatars.discourse-cdn.com/v4/letter/n/c89c15/32.png) [@nycenglish](https://forum.psaudio.com/u/nycenglish)\ **Post date:** [January 22, 2021, 11:52pm UTC](https://forum.psaudio.com/t/bhk-preamp-tube-rolling/3403/1129 "2021-01-22T23:52:59Z")
Thanks! I’ll give him a call. ---
**Author:** ![Somppsa](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/somppsa/32/11679_2.png) [@Somppsa](https://forum.psaudio.com/u/Somppsa)\ **Post date:** [January 24, 2021, 10:28am UTC](https://forum.psaudio.com/t/bhk-preamp-tube-rolling/3403/1130 "2021-01-24T10:28:54Z")
Anyone else running new Psvane 12au7-s art tubes in BHK pre? I´v had a pair running in now for about 250 hours and these sound clearly better than older discontinued mk2 version or any other tubes I´ve tried in BHK pre. ---
**Author:** ![murrayb](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/murrayb/32/196345_2.png) [@murrayb](https://forum.psaudio.com/u/murrayb)\ **Post date:** [January 24, 2021, 2:25pm UTC](https://forum.psaudio.com/t/bhk-preamp-tube-rolling/3403/1131 "2021-01-24T14:25:14Z")
Yes, I got a pair just before Christmas. I’ve been very happy with them. I agree that they are better than the previous version, as well as the Golden Lion and the Tungsram tubes that I’ve used. I’m thinking about trying a pair in the BHK 250. ---
**Author:** ![sixpack1](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/sixpack1/32/6013_2.png) [@sixpack1](https://forum.psaudio.com/u/sixpack1)\ **Post date:** [January 24, 2021, 4:00pm UTC](https://forum.psaudio.com/t/bhk-preamp-tube-rolling/3403/1132 "2021-01-24T16:00:16Z")
The powe amp uses 6 or 7 volt tubes only. ---
**Author:** ![senna1a](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/senna1a/32/46992_2.png) [@senna1a](https://forum.psaudio.com/u/senna1a)\ **Post date:** [January 24, 2021, 4:14pm UTC](https://forum.psaudio.com/t/bhk-preamp-tube-rolling/3403/1133 "2021-01-24T16:14:16Z")
Speaking of new Chinese tubes, Has anyone tried the Shuguang 12au7-T (or TG)… I thought I had read positive news for low noise, but any overall sound impressions? ---
**Author:** ![brett66](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/brett66/32/92201_2.png) [@brett66](https://forum.psaudio.com/u/brett66)\ **Post date:** [January 24, 2021, 4:56pm UTC](https://forum.psaudio.com/t/bhk-preamp-tube-rolling/3403/1134 "2021-01-24T16:56:09Z")
I wonder how different they are as Shuguang makes both and has priced them the same. Looking at pictures closely they are very, very similar. ---
**Author:** ![senna1a](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/senna1a/32/46992_2.png) [@senna1a](https://forum.psaudio.com/u/senna1a)\ **Post date:** [January 24, 2021, 5:20pm UTC](https://forum.psaudio.com/t/bhk-preamp-tube-rolling/3403/1135 "2021-01-24T17:20:32Z")
That’s kinda what I was thinking, But I thought the PS Vane folks spun off and set up shop nearby (but may still share the same R&D) - I’m not totally sure but just looking to see if there is a noticeable difference vs potentially just badged differently. ---
**Author:** ![brett66](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/brett66/32/92201_2.png) [@brett66](https://forum.psaudio.com/u/brett66)\ **Post date:** [January 24, 2021, 5:28pm UTC](https://forum.psaudio.com/t/bhk-preamp-tube-rolling/3403/1136 "2021-01-24T17:28:33Z")
I ordered of pair of the Psvanes, if you order a set of the Shuguang we could swap at some point after a proper evaluation of each. ---
**Author:** ![senna1a](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/senna1a/32/46992_2.png) [@senna1a](https://forum.psaudio.com/u/senna1a)\ **Post date:** [January 24, 2021, 5:50pm UTC](https://forum.psaudio.com/t/bhk-preamp-tube-rolling/3403/1137 "2021-01-24T17:50:10Z")
Great idea - ordered. ---
**Author:** ![tmmuchcox-net](https://avatars.discourse-cdn.com/v4/letter/t/e480ec/32.png) [@tmmuchcox-net](https://forum.psaudio.com/u/tmmuchcox-net)\ **Post date:** [January 24, 2021, 7:12pm UTC](https://forum.psaudio.com/t/bhk-preamp-tube-rolling/3403/1138 "2021-01-24T19:12:59Z")
From where do you guys order these new Psvanes? ---
**Author:** ![vee](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/vee/32/17567_2.png) [@vee](https://forum.psaudio.com/u/vee)\ **Post date:** [January 24, 2021, 7:28pm UTC](https://forum.psaudio.com/t/bhk-preamp-tube-rolling/3403/1139 "2021-01-24T19:28:47Z")
I have both the Shuguang black bottle and new Psvane art series and unfortunately both models had issues. The Shuguang started having spurious noise in both sets. IIRC they were very quiet and dynamic when I first got them. The Psvane seemed very good but started having a ringing issue in one channel and was sent back to the dealer to replace. I haven’t gotten them back yet. Of all the tubes I have, the latest Gold Lion 6922s are really coming into their own. I have about 300 hours on this pair and I prefer them over the Tungsram for their transparency, tonal balance, delicate details and big soundstage. ---
**Author:** ![senna1a](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/senna1a/32/46992_2.png) [@senna1a](https://forum.psaudio.com/u/senna1a)\ **Post date:** [January 24, 2021, 10:05pm UTC](https://forum.psaudio.com/t/bhk-preamp-tube-rolling/3403/1140 "2021-01-24T22:05:13Z")
I’ve yet to order a set of Psvanes , but I would consider PS Audio, or a place that offers a balanced pair. ---
**Author:** ![murrayb](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/murrayb/32/196345_2.png) [@murrayb](https://forum.psaudio.com/u/murrayb)\ **Post date:** [January 24, 2021, 10:10pm UTC](https://forum.psaudio.com/t/bhk-preamp-tube-rolling/3403/1141 "2021-01-24T22:10:11Z")
I bought my PSVanes from Grant Fidelity. They are in Canada but they ship to the US. ---
**Author:** ![straightwire](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/straightwire/32/123306_2.png) [@straightwire](https://forum.psaudio.com/u/straightwire)\ **Post date:** [January 25, 2021, 1:54am UTC](https://forum.psaudio.com/t/bhk-preamp-tube-rolling/3403/1142 "2021-01-25T01:54:01Z")
I’m not a tube aficionado, but I thought the 12au7 was the preferred match with the BHK as it offers the lowest noise floor. ---
**Author:** ![sixpack1](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/sixpack1/32/6013_2.png) [@sixpack1](https://forum.psaudio.com/u/sixpack1)\ **Post date:** [January 25, 2021, 2:28am UTC](https://forum.psaudio.com/t/bhk-preamp-tube-rolling/3403/1143 "2021-01-25T02:28:46Z")
That has been my experience. [Previous page](https://forum.psaudio.com/t/bhk-preamp-tube-rolling/3403.md?page=56) [Next page](https://forum.psaudio.com/t/bhk-preamp-tube-rolling/3403.md?page=58)