88% Copper, 10% Zinc and 2% Zinc
Corrected typo.
Gunmetal - 88% Copper, 10% Tin and 2% Zinc (typically)
Direct Drive vs. Idler Drive vs. Belt drive
I'd like to know your thoughts on the strengths and weaknesses of each drive system. I can see that direct drive is more in vogue over the last few years but is it superior to the other drive systems? I've had first-hand experiences with two out of the three drive systems but looking to learn more.
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- 349 posts total
@ferrari275 I will add more from the open sources if you’re interested: Gunmetal, also known as Red Brass in the United States, is a type of Bronze — an alloy of Copper, Tin, and Zinc. GUNMETAL is a type of bronze — an alloy of copper, tin and zinc. Proportions vary by source, but 88% copper, 8-10% tin and 2-4% zinc is an approximation. Gunmetal originally used chiefly for making guns! ** Micro CU-500 (2.7kg weight, 5mm thickness) is my favorite mat for Technics SP-10 mkII. I still have one in mint condition, but can’t use it on any of my turntables, simply too heavy for most of them. However, i’m happy to use Micro ST-20 gunmetal clamp on all my turntables. These two devices supposed to work together just fine. On my turntables Micro CU-180 (1.8kg weight, 3mm thickness) is what i like the most with ST-10 or ST-20 disc stabilizers. Gunmetal ST-20 simply became my favorite, it’s lighter than ST-20 and works like a clamp (if needed), not just weight. I own a Gunmetal Copper Micro Seiki CU-180 which I have compared to the Artisan Fidelity pure Copper Universal platter mat which I use sometimes on the Kuzma Xl DC, and they are similar, but the later can give some recordings a touch more weight and "body" if you will, to the sound. My thoughts here are it may be because gunmetal contains 88% Copper, 10% Zinc and 2% Zinc (est.) while the pure Copper mat does not contain the additional metal alloys. It's nice that you compared them, very interesting. I think CU-500 is better than CU-180, would be nice to read about A/B test of Gunmetal CU-500 and Artisan Fidelity Copper Mat. |
@edgewear It's funny because on my original box from CU-180 i have a nice sticker on the right corner: "MICRO GOLD DISC CU-180" Like Voyager Golden Disc ? Look at two different samples of CU-180 On the right sample the grooves are deeper, both samples are originals. Even diameter can be different within +/- 0.2 mm as stated in the manual. |
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