Manley Chinook


In Dec 2015 I purchased a Manley Chinook SE from Upscale Audio.  The box I received and serial number stated a SE version but it was actually the standard version.  Kevin D. asked if I wanted to return for the SE model and we agreed that he would send me the Philips PCC88 tubes instead.  This weekend when I went to the room for a listening session once I powered up the Chinook a loud hum persisted.  I checked all connections and they were good.  Changed the tubes - still hummed.  Changed the ICs - still hummed.  Moved to another audio setup - still hummed.  But, after being on for about 30 minutes the hum lessened but a scratchy/crackly sound could be heard in the background.  Yesterday I sent it back to Manley for diagnosis.  I estimate there is less than 20 hrs use.  When I bought this unit I did my research and felt that this would be a workhorse with no problems.  Has anyone else experienced this type of phenomena with the Chinook.  I have hooked my VPI TT back up to my onboard phono stage on my McIntosh C2300; as good as the Mc is I miss the Chinook.
miner42
I set up a friend’s stereo in Dec 2015 that included a Chinook purchased directly from Manley. After a couple months it developed the same problem as you and Matt Miller described. Manley repaired it under warranty by installing a new board. The repair took about three months, but the wait could have been that it was one of the first in for the repair and they were diagnosing the problem. Works well now.

I wouldn't be too thrilled @sschmidt if I spent several $K on a preamp, had issues, sent it back and had to sit tight for a quarter of a year so my unit could be the guinea pig..Why wouldn't they just send a new unit...or perhaps a loaner?
I have a used Chinook (purchased from audiogon seller) without noise issues. I also purchased a used Manley Shrimp preamp that I sent to Manley for the upgrade to Jumbo Shrimp (took about 3 weeks). Great company to deal with. Warranty and after-market support is often an overlooked factor when considering a brand.


@asp307, My friend was the person in contact with Manley. He was pleased with the service at Manley and loves his Chinook.


@sschmidt Then that is all that matters. Glad it worked out for your friend.