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AUDIO FORUMS >> General Discussion and Support >> Otomon Labs Custom 300B SET Amp
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Message started by tempest62 on 10/25/22 at 16:59:12

Title: Otomon Labs Custom 300B SET Amp
Post by tempest62 on 10/25/22 at 16:59:12

Snatched this baby up last night, after 2 days posted:

https://www.canuckaudiomart.com/details/649911048-otomon-labs-custom-built-300b-amplifier/

Purchased just the amp. No tubes. Paid about 1/3 of original build cost in mid-2020 (whaaaaat?) I expect this beauty to be a very special amp. My first and hopefully last ever 300B. It was designed straight from the schematic of the Luxman MQ-300.

Will likely load up on Cryotone tubes, sans the 300B's....going to first try the blue light specials that Steve really liked, Guiguang brand (about $150 for a pair):

This will replace the Line Magnetic 34ia in the second system. Might very well also sell the Nola Boxer II's in favor of Steve's T6's.

Also, will rotate this one with the Torii Mk5-25th in main system from time to time for happy shits and giggles.

I looked up those ISO-Tango transformers....freaking expensive!!

Brad

Title: Re: Otomon Labs Custom 300B SET Amp
Post by jec3504 on 10/25/22 at 17:12:29

Good score Brad. Looks like a great amp!

Title: Re: Otomon Labs Custom 300B SET Amp
Post by tempest62 on 10/25/22 at 17:21:21

Thanks Joseph. I have to agree!

Almost excited as much about this as I've been waiting for 1.5 yrs for the venerable Torii MK 5 which is turning out to be the absolute best audio purchase I ever made by a landslide in armageddon.....right along with the upgraded HR-1's.

Title: Re: Otomon Labs Custom 300B SET Amp
Post by tempest62 on 10/25/22 at 17:30:28

http://soundgate.net/product/ODg2.highend

Title: Re: Otomon Labs Custom 300B SET Amp
Post by Tommy Freefall on 10/25/22 at 18:43:45

Congrats, Brad!

Looks like a very nice piece of kit.
Should be lots of fun!

Title: Re: Otomon Labs Custom 300B SET Amp
Post by tempest62 on 10/25/22 at 22:25:04

Thanks Tommy

I was just lucky, right place at the right time or it would have been already gone.

Title: Re: Otomon Labs Custom 300B SET Amp
Post by Joey on 10/25/22 at 22:30:04

Very nice! Do let us know how you like it. Looks like a killer amp!

Title: Re: Otomon Labs Custom 300B SET Amp
Post by Kamran on 10/26/22 at 01:48:23

Nice score!

Title: Re: Otomon Labs Custom 300B SET Amp
Post by Earthbound on 10/26/22 at 01:55:11

Good luck with the new amp. Can’t wait to hear your impressions. 👍

Title: Re: Otomon Labs Custom 300B SET Amp
Post by Mannytheseacow on 10/26/22 at 04:14:15

Sweet score, Brad!

Those wooden horns pictured in the ad are insane, too.

Title: Re: Otomon Labs Custom 300B SET Amp
Post by fridays on 10/26/22 at 22:34:42

Nice looking smooth, where are you getting the Guiguang tubes

Title: Re: Otomon Labs Custom 300B SET Amp
Post by tempest62 on 10/27/22 at 01:31:50

Thank you gentlemen all!

The designer / company owner in Japan, Ken Uesugi, reminds me a lot of Steve. I will be in contact with him momentarily.

fridays: the tubes can be found on eBay.

Brad

Title: Re: Otomon Labs Custom 300B SET Amp
Post by fridays on 10/27/22 at 03:18:06

Thanks Brad :)

Title: Re: Otomon Labs Custom 300B SET Amp
Post by tempest62 on 10/27/22 at 16:50:48

No sweat, fridays 🍺💥🍺

Title: Re: Otomon Labs Custom 300B SET Amp
Post by Kahuna Jack on 10/27/22 at 21:55:39

that amp just looks like it sounds good . love the turret board construction , makes experimenting easy if one was so inclined .

Title: Re: Otomon Labs Custom 300B SET Amp
Post by tempest62 on 10/28/22 at 19:11:03

Kahuna,

True....the layout is very clean and well organized, which is ripe for further upgrades.

Brad

Title: Re: Otomon Labs Custom 300B SET Amp
Post by tempest62 on 11/07/22 at 04:37:48

Received the new toy in pristine condition, as advertised. Damned serious amp.

Outfitted it with 4 Ken-Rad 6NS7 and 2 GE GZ34’s….waiting on the pair of GuiBANG! 300B which will be another week or two.

Looking into possibly ordering a pair of ShuBANG! Black Treasure or PISSvane Cossor blue glass 300B’s.

Brad

Title: Re: Otomon Labs Custom 300B SET Amp
Post by Geno on 11/07/22 at 12:34:15

Awesome Brad! Once you get it in the lineup, and tubed to your liking, let us know how it sounds - I’m sure fantastic! Beautiful amp you lucky dog 8-)

Best,

Geno

Title: Re: Otomon Labs Custom 300B SET Amp
Post by tempest62 on 11/07/22 at 17:01:05

Hey Geno, thank you very much! I lucked out for sure. Paid just $2.3k on a 2 yr. old hand crafted $6k+ amp 🥳

This is pretty exciting. It will mate with a pair of bookshelf Nola Boxer II’s and a Cambridge CXNv2 in the second system in the living room. Maybe even toggle into the main system from time to time. Life is good!

I’ll be sure to take some photos when in 300B tubes arrive.

Brad