MASS-Kobo Headphone Amp. model404
May 1, 2023 at 6:21 AM Post #151 of 198
That was quick. How so? I'm sure you'll find keen interest.
Certainly. I love the house sound and have ordered a 424 in its stead. Xlr works better for me. Keen to also try the 404, perhaps!
 
Jun 30, 2023 at 5:19 AM Post #153 of 198
Been eying the 428 for sometime to backup for my aging Wagnus combo.
Caved in finally during my demo at SG CamJam.
Impressive amp with plenty of reserve.
Powerful, musical with crazy resolution.
It’s huge soundstage is jawing dropping good- outperforming my Wagnus combo.

But I can’t bring it home coz the 475 is still a prototype version which should be ready to deliver in mid of next month according to Masa San. We therefore made arrangement that he delivers directly to me next month between 24-27 Apr when I’m in JPN.
Have been enjoying this audio chain since I received my 475(0004) personally from Masuda San on 28 Apr 23.
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Jul 1, 2023 at 7:31 AM Post #157 of 198
OK! Please tell me more! I'm especially interested in how the amp portion of the Mjolnir compares to 428/475?
I did less than 15mins demo and had to stop. Base on memory- If you’re a sucker for soundstage like me, height, width and depth, this tank-built rocks like it’s physical beauty.

Anyway, 475 with Brise 4.4 mini is not far behind in the bass compartment and treble section, just that the midrange of Mjolnir is on a different level.
 
Jul 1, 2023 at 8:13 AM Post #158 of 198
I did less than 15mins demo and had to stop. Base on memory- If you’re a sucker for soundstage like me, height, width and depth, this tank-built rocks like it’s physical beauty.

Anyway, 475 with Brise 4.4 mini is not far behind in the bass compartment and treble section, just that the midrange of Mjolnir is on a different level.
Thank you. Very interesting! I'm currently using Paw Gold Touch Titanium with Mass Kobo 428 (475), and I'm anticipating the presentation is going to be close to Mjolnir. Are you saying midrange is more textured on Mjolnir vs 475?
 
Jul 25, 2023 at 8:47 PM Post #161 of 198
I should receive my 475 next week, looking forward to it :)
Looking forward to impressions. Strongly considering this one!
 
Jul 26, 2023 at 12:04 PM Post #163 of 198
Hi, sorry. I’m not too active here anymore. The 475 is a neutral/transparent amp that is very punchy and dynamic, it’s also got a nice full bodied sound presentation. It’s a bit more attention grabbing with its dynamics versus something more laid back and softer like the Tsuranagi, but I can’t imagine anyone hearing the 475 and being unhappy with it. As with anything, synergy will be key and some IEMs don’t scale up as much as others.
 
Jul 26, 2023 at 12:34 PM Post #164 of 198
Hi, sorry. I’m not too active here anymore. The 475 is a neutral/transparent amp that is very punchy and dynamic, it’s also got a nice full bodied sound presentation. It’s a bit more attention grabbing with its dynamics versus something more laid back and softer like the Tsuranagi, but I can’t imagine anyone hearing the 475 and being unhappy with it. As with anything, synergy will be key and some IEMs don’t scale up as much as others.
When it comes to 475, the only question is
Can you get one?🤣
Incredible amp
 

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