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I have the 4004 version of this amp and a common fault from age is the relays oxidize which could cause the poor performance here. The fix is to open the sealed relay and sand the contacts with a fine finger nail type file. I did this to mine and it transformed the sound! Of course this one...

They make great space heaters!

Isn’t it’s power bandwidth list as 24hz-22khz? So it should be down an unspecified amount at 20hz possibly 3db?

I’m not hiding behind an Avatar! I’m not mincing my word. I didn’t recognize that as Polish, you pointed that out and call me stupid at the same time. You sir are a classic.

That is exactly what I saw, a technical obscure language to me. Surprising that you are so shallow to not get it. If you want to continue being a jerk we are done here. Good day.

Thanks for the link, I had no intention of being rude. People interpret things differently especially from different countries. Maybe you should take that into consideration.

I did look at the link, there are no pictures, just graphs and gibberish. Apparently my browser didn’t load the pictures.

??? Why? This is why tubes get a bad name! This is a poorly designed circuit with super cheap output transformers. Well made output transformers weigh a lot and are required for proper tube performance. OTL excepted…

Harmon Kardon Citation II, Macintosh MC275, Audio Research Classic 60 or Classic 120’s like I have. All, low noise, low (ish) distortion and wide bandwidth. Tubes can perform very well just not up to the best solid state design.

Which Nautilus are they measuring? The original Laurence Dickie Nautilus 800-805’s measured and sounded fantastic.

I am not an anime fan, my children are huge fans though. I watched this entire series and was completely entertained! I watched a few minutes of the anime series and was bored immediately…I just didn’t get it…

$110? I’m surprised it worked at all!

Those are both very good amplifiers! I suspect the Benchmark is not entirely happy driving the Sabrina’s 2.8 ohm load in bridged mode where the McIntosh will have no problem doing that. I think that you may find the Mac preferable in the long run. I borrowed a friend’s AHB2 for a weekend and...

Did I not say that? Point is there are many factors when measuring that could result in differences.

Speaker break in does happen and it has been documented. Even Amir has had erroneous measurements due to a cold room where he does measurements. So even temperature can affect speakers. Here is clear evidence of speaker break in. https://www.gr-research.com/burn-in-myths.html

Styx Paradise Theater

I posted my fun car a few pages back, this is my daily driver…sort of. I actually drive a big white van to work every day because I’m a contractor.

The Rockport’s measurements are extraordinary. But poor room setup or some of those expensive cables could be detrimental to the final sound. https://www.stereophile.com/content/rockport-technologies-avior-ii-loudspeaker-measurements

I have a 2019 Mac mini SSD that I use a a dedicated music server/streamer and I have never heard it make any noise at all and it’s 3-4 feet from my listening seat. I didn’t even know it had a fan until this thread!

Hahaha, definitely a hair or something, I looked all over my glass just now, definitely gone now! Maybe it is on my iPhone lens…