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Old 09-01-2022, 03:01 AM
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80B 80B is offline
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Join Date: Apr 2009
Location: Old City
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So one more bit of data on the tubes, this time the 12AT7s (2 in each amp). One did test as just inside "Worn" territory vs. "Good", which was a bit unexpected given that it's the power tubes that are supposed to have a shorter life. It may have also contributed to a feeling the sound was maybe a bit flat, but not something I could put my finger on since any degradation would have been so gradual I would not be conscious of it.

Freddie, great question about a comparison and one I didn't want to delve into on the initial post because I had maybe 2 hours on the new tubes. Now I have 5! So, the caveat that they really don't have enough time to be broken in aside, there is a bit more detail and punch with the Gold Lions. In fairness to the stock tubes, we're comparing tubes with considerable use vs. new ones, with one testing "Worn" vs. "Good". My 26-year-old son, who has musical talent and a better ear than me, said he feels it sounds better. He showed more interest in listening this evening, which is telling. You've got to be enjoying that MC1502!

I know some folks have replaced their stock tubes with Gold Lions (or other tubes) right away, something I decided not to do since this was my first foray with tubes in the main system (replacing MC501s), and I wanted to get used to the "house sound" as well as "utilize the assets" of the stock tubes. It also seems wise to get used to a set of tubes before making a comparison, especially with 16 KT88s which isn't cheap and almost twice as expensive as it was in 2018, although you don't need four years to do that! I like what I'm hearing with the Gold Lions, but don't regret waiting since part of having tubed equipment is that it can be more of a journey and allow for some experimentation, depending on how much you want to roll tubes. That said, I can see why someone with the right experience would swap out stock tubes if he thought he had something better, just set it and forget it and focus solely on the music.
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Sources: Vinyl: Clearaudio Innovation Wood turntable with 9" Universal tonearm, Da Vinci V2 cartridge, Stillpoints SS & Stillpoints clamp, McIntosh MVP 901, Apple Mac mini via Benchmark DAC 1, Aurender N100C via Schiit Yggdrasil
Control: McIntosh C1100, Mcintosh MX151
Power: Mcintosh MC2301s (front), McIntosh MC501 (center), Mcintosh MC402 (rear)
Speakers: Sonus Faber Amati Futura (front and back), SF Vox center
Power/connections: PS Audio Power Port receptacles, RGPC 400 pro (2) WireWorld interconnects and speaker cable
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