Talisman
Major Contributor
that preamp is NOT accuphase, if you want to see how accuphase preamps work go and see the latest review and understand the difference between a masterpiece and garbage
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Chinese accuphase clone comparison video
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Adis
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Well, it's what got copied.
Talisman
Major Contributor
Do you understand the difference between an original product and a copied one? Right?
Adis
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Original product is the copied one.
- Thread Starter
- #145
Would be interesting to see this. I myself was looking at getting a pair of A-75 clones for mono blocking.
Hindsider85
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The Pre-Amp is the most underestimated device in the chain. Its as important as the DAC and only behind the speaker itself. Of all the AMPs I've had, I never heard any difference. Given you use the exact same chain, of course. Class D, Class A or Class AB. The AMP pretty much just "amplifies" what it gets from the DAC and Pre-Amp. I've tested this extensively myself. The very same Amp sounds completely different with various DACs and Pre-Amps. Which means the Amp itself only reacts to what it is getting fed. Its does nothing else. If it adds aything, its not a good design to begin with. Period! People saying that "this AMP did this and this AMP did that!" are just snake oil salesmen or simply biased. DACs are WAY more important than the Amp and the Pre-Amp is a close second. Some might say its more important than the DAC, but thats up for debate. But all Im saying is the Amp is the least important device in your chain.
Between the A75 and the E406 whats your experience?
Audiolab800
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I can less or more confirm this, we did blind testing between two different amps, the E-470 and the Fosi V3 mono blocks. The listener took note during the testing...
After the test we discusses the results and the notes taken, it was not the aim to determine the best of both just to determine if there where differences and if so where they significant or rather very subtile... Both volume matched with pink noise and REW & UMIK-1.
The procedure was 6 songs, different from acoustic and jazz, classical and electronic music, each playing for exact 40 seconds. So Amp A song 1 for 40 seconds, then Amp S song1 for 40 seconds, then Amp B with song 2....
The comment was very subtile differences and not all in flavor of the way more expensive E-470, a very close call with no winner here. And the E-470 used it's own pre-amp section while the Fosi V3's (each with their own power supply 48V 5A) where fed by the pre-amp sections of the Topping DX9.
And Yes I know it is not a valid A/B/X Blind testing but it served my purpose, the conclusion we took was that if any, the differences where very subtile.
Pleas no lecture that the procedure was not correct, the goal was to hear if there where any noticeable differences in sound. The results where confronting, I was expecting the Accuphase E-470 way more better than the Fosi V3 mono blocks. The latter costing me 300€ while the Accuphase costing me 7500€. And yes probably the Fosi's will last not as long as the Accuphase. The only concern I have is no decent protection against DC out on the Fosi V3's (to protect the speakers in case something blows in the amps)
Amazing. It kinda sux, cuz I wanna be able to spend more money to get better sound lol. But its the truth. I did learn to pick my speakers as my main budget expense. You probably saved my money just now, thank you!
Actually this is not my experience.
I bought Fosi ZA3 (180W per channel at 4 Ohm) and honestly even after removing all not required op-amps, the sound was shallow and the stage was small. I had that feeling that even though I turn up the volume, only the pressure in my ears pfoves to me that anything really changed.
I was so unhappy that I even bought a Fosi MC331 as a pre-amp - and it actually widened the stage a little. Still, this was not comparable to my AKAI AM-95 Reference Master (180W per channel at 4 Ohms) that was in repair (all capacitors etc. were already replaced with the new ones, but then cold solder joints appeared and required fixing).
Therefore, I bought a Chinese clone of Accuphase A-75 made by Musmys and I can confirm that it is a great amp (takes 3 weeks to arrive). I am pretty sure you will not find anything better around 1200$ (I paid around this amount mid Jan'26) and to be honest probably even if you can spend much more.. The clone seems to be better than AM-95 but I am going to try a blind test for this in the future; just to be sure which one should be the primary amp. Still, both are great and at the level of quality that satisfies me.
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B&W is very popular here in Norway. I have never heard one I liked and I see it as an annoyance when people keep talking about them.There are 802 clones too - at around 1/10th the price of the B&W's!
But the woodwork and its bracing are key to the performance of any speaker - and there is zero visibility of the construction quality... so definite caution is advised
No claims of any association with or copying of B&W.... but look at it!
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PristineSound
Major Contributor
B&W is popular everywhere. Popularity doesn't equal good.
In the case of B&W, for a large niche of buyer, the reputation proceeds the performance.
They were never one of my favourite speakers...
Many of the cabinets are madenof the worsed material you can build a cabinet from. OSB plates, which is large wood particles glued together. MDF and dense quality birch plywood is much better.
Not to mention B&W preference for thick woven cone midrange drivers. Even the bass was lacklustre. Treble design is great with no difraction, but choice of treble was not very exciting.
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popej
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It uses TPA3255 which has build-in DC protection. At least should cover any shortcircuit of output terminals.
I suggest you actually listen to different amps and pre amps because you're comment screams of inexperience.
*your.
And your comment screams of inexperience with controlled listening comparisons.
Johnkeizer
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All amps sound the same…..oh dear.
"Controlled listening experiences". I'll give that another "oh dear" and leave it at that
I'll never recover from this.
No, it actually demonstrates technical know how of how amps are designed, how they work, and how inaudible the differences between them are.I suggest you actually listen to different amps and pre amps because you're comment screams of inexperience.
Relax go outside take a few breaths of fresh air. People can do and buy what they want with there money. Your opinion doesn't matter one bit to anyone but yourself so might as well keep it to yourself. I appreciate this post immensely and hope there are more that do this. Your self perceived high horse isn't what you think it' is.
*their
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