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Jeff Rowland 535 Stereo Amplifier Review
- Thread starter amirm
- Start date
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- Nov 22, 2018
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So, Pascal S-PRO2? Datasheet section 3.2 says, "@amirm, please test distortion versus power at several different frequencies."
OP
- Thread Starter
- #24
Well, I am concerned about testing expensive amplifiers that way given what happened to Devialet!
Yes, and these class D amps and peripheral circuitry are no cakewalk for diagnosing and repairing. Especially without proper service literature and access to parts. I would be cautious too. Treading in new waters for sure.
You milk Jeff for money, Jeff no like milkers .. you being serious with this ?
I think you make laugh for Jeff haters , ask for money for dog brushing .
maty
Major Contributor
[German] https://www.high-end.design/cms/
Jeff Rowland Model 535
Optimized
Well, class D module and... RF / EMI filter with two stages
Jeff Rowland Model 535
Optimized
Well, class D module and... RF / EMI filter with two stages
You can get S-PRO2 amp for 400$ from Monacor:
https://www.audiosciencereview.com/...s-to-test-and-review.2238/page-30#post-325598
https://www.audiosciencereview.com/...s-to-test-and-review.2238/page-30#post-325598
A quick google got me this PDF with OEM pricing:
http://forum.vegalab.ru/attachment.php?attachmentid=257396&d=1454057451
Jeff Rowland does know how to mark-up its products. Is this a current model?
http://forum.vegalab.ru/attachment.php?attachmentid=257396&d=1454057451
Jeff Rowland does know how to mark-up its products. Is this a current model?
What is the long term implication of this understandable position? Are you going to stop testing them as you cannot test them completely, or move to only testing new models that are under warranty? What is the legal situation on warranty repairs from mild stress testing?
renaudrenaud
Major Contributor
I am completely disgusted by high-end.
I have a question anyway.
I consider the pioneers where on the market in 70's and later, and were proud of their products. But right now they are retired and the brands are owned by pension funds an other kind of company that do not care about anything except cash. I do not know it is the case with this brand, but in this dynamic you can buy any high end audio brand, and sell bs because what is important is the front plate with the name on it. After few years the company has lost the market but anyway your pockets are full of $ and you can resell and destroy another brand.
Is it the case for JR?
I have a question anyway.
I consider the pioneers where on the market in 70's and later, and were proud of their products. But right now they are retired and the brands are owned by pension funds an other kind of company that do not care about anything except cash. I do not know it is the case with this brand, but in this dynamic you can buy any high end audio brand, and sell bs because what is important is the front plate with the name on it. After few years the company has lost the market but anyway your pockets are full of $ and you can resell and destroy another brand.
Is it the case for JR?
From the module datasheet. This is more or less comparable to ICEpower technology.
The string of disappointments continues .... mundane performance for top shelf prices ...
I love numbers, They tend to tell the story very clearly, in my experience:
For those of us (not so young anymore I would think) who have spent tens of thousands of dollars in High End Audio thinking naively that Mo' money = Mo' Performance this is almost sad.
For those new to the game of Audio reproduction, this is a reminder that you don't need to spend crazy money for high performance audio. These days a budget limit of $3000 for a (large) room-shaking accurate 2-ch audio reproduction system covering 20~20,000 linearly and SPL >100 dB at 3 meters,
For headphones about $400 ... DAC , Amp, headphones
I love numbers, They tend to tell the story very clearly, in my experience:
For those of us (not so young anymore I would think) who have spent tens of thousands of dollars in High End Audio thinking naively that Mo' money = Mo' Performance this is almost sad.
For those new to the game of Audio reproduction, this is a reminder that you don't need to spend crazy money for high performance audio. These days a budget limit of $3000 for a (large) room-shaking accurate 2-ch audio reproduction system covering 20~20,000 linearly and SPL >100 dB at 3 meters,
For headphones about $400 ... DAC , Amp, headphones
Is this what's used in the D&D 8c?Seems like a pretty popular module used in at least 3 brands
renaudrenaud
Major Contributor
Is there any "professional reviewer" masturbating with this equipment ?
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