Carver Crimson 275 Measurements

[paulbottlehead]

Since the Carver will be delivered soon can you tell us about your test equipment and your test methods. For instance, did you make any of the previously posted measurements in room with say, a laptop and mic and maybe free software?
Just curious.
I have a sinking feeling that the results of this ordeal won't turn out positively for anyone involved in it.
That includes Carver, you and ASR.

A microphone???? Really???

 

[paulbottlehead]

Square waves were requested, so here they are:

It was also pointed out that having the speaker negative binding post connected to audio ground would bypass a resistor in the feedback network, and this is quite correct. As suggested by the person who brought this to my attention, I left the load and my scope (running on battery power) across the binding posts and grounded the feed to my FFT to the audio ground instead of speaker negative. This change did not appreciably change any of the readings I checked.

 

[Zackthedog]

If your advertised power rating is anything other than continuous (which is what everyone expects these days) you should specify it. Otherwise you are deliberately misleading people.

Cheers

Indeed, a big problem here is that, like the poster at Audiogon, some folks assumed they'd found a lightweight, uniquely-designed budget tube amp from a famed engineer that could power their inefficient speaks.

Square waves were requested, so here they are:

It was also pointed out that having the speaker negative binding post connected to audio ground would bypass a resistor in the feedback network, and this is quite correct. As suggested by the person who brought this to my attention, I left the load and my scope (running on battery power) across the binding posts and grounded the feed to my FFT to the audio ground instead of speaker negative. This change did not appreciably change any of the readings I checked.

Square wave pics didn't come through?

 

[mhardy6647]

My MC240 does say 'continuous' in the owner's manual:

View attachment 177287

Not exactly this year's model, though.
The 2022 MC-275 Mk Whatever specs, e.g, do not.

 

[mhardy6647]

The square waves look pretty darned good, from my perspective. The 100 Hz is probably predictable; the 10k looks pretty surprisingly good, particularly considering the hardware it's gotta get through.

 

[mhardy6647]

Indeed, a big problem here is that, like the poster at Audiogon, some folks assumed they'd found a lightweight, uniquely-designed budget tube amp from a famed engineer that could power their inefficient speaks.

Square wave pics didn't come through?

You can't see 'em? Heck, I even see them in your quote of @paulbottlehead's post (?!).

 

[MakeMineVinyl]

Not exactly this year's model, though.
The 2022 MC-275 Mk Whatever specs, e.g, do not.

The new versions of the McIntosh tube amps aren't really tube amplifiers. They're platforms for green LEDs under tubes which should be amber.

 

[MakeMineVinyl]

Square waves were requested, so here they are:

It was also pointed out that having the speaker negative binding post connected to audio ground would bypass a resistor in the feedback network, and this is quite correct. As suggested by the person who brought this to my attention, I left the load and my scope (running on battery power) across the binding posts and grounded the feed to my FFT to the audio ground instead of speaker negative. This change did not appreciably change any of the readings I checked.

I don't see any images.

 

[LTig]

I don't see any images.

Neither do I.

 

[mhardy6647]

heavy sigh.
howzabout these?
100 Hz

1 kHz

10 kHz

 

[paulbottlehead]

Let me know if my tweaked post is working.

 

[LTig]

Let me know if my tweaked post is working.

It does.

EDIT: You've changed the link type from IMG to ATTACH. Did you do this manually?

 

[MakeMineVinyl]

I see the images now. Not all that bad. This is for the factory bought amp?

But I wanna see 30Hz at 20 watts.

 

[mhardy6647]

If folks continue to have trouble seeing them, and if @paulbottlehead is OK with it, I can put the images up on Flikr and hotlink 'em to this thread.
Just let me know...

 

[MakeMineVinyl]

If folks continue to have trouble seeing them, and if @paulbottlehead is OK with it, I can put the images up on Flikr and hotlink 'em to this thread.
Just let me know...

CONTINUE having trouble? Beyond the square waves, there are more?

 

[mhardy6647]

CONTINUE having trouble. Beyond the square waves, there are more?

No.
I mean: if the people who couldn't see the square waves continue to have trouble seeing the square waves...

Sounds to me as though the problem's solved, so this conversation should self-destruct in five seconds...

 

[LTig]

CONTINUE having trouble. Beyond the square waves, there are more?

I see 3 square waves, there isn't more.

 

[MakeMineVinyl]

I see 3 square waves, there isn't more.

That's all there is? Nothing more?? I've lived my entire life for three lousy square waves?

 

[paulbottlehead]

The factory assembled amp has been sitting about ten miles south of me since the 29th of December. Thanks FedEx!

 

[paulbottlehead]

I have a sinking feeling that the results of this ordeal won't turn out positively for anyone involved in it.

I am open to someone from the company providing guidance on anything I may or may not be doing wrong in order for me to achieve better results.