The year 2035: Super Street Topping Fighter PA5 III Turbo Alpha Deluxe Plus: SBPTBTBL Championship Edition*Sure thing, PA5 III++ will have the bypass
All we need is just a little patience...
*still with potted circuitry
The year 2035: Super Street Topping Fighter PA5 III Turbo Alpha Deluxe Plus: SBPTBTBL Championship Edition*Sure thing, PA5 III++ will have the bypass
All we need is just a little patience...
Please take caution in your posts with this kind of speculation. In front of me no less.It could even be possible that the 5 Watts used for Amir's measurements are precisely within this range of use of the volume potentiometer, which forced Amir (and therefore also the users) to use the amplifier with the bypassed volume to measure it, but above all that he passes the 'test': to check...
What’s this based on? In mono, the ZA3 performs worse albeit with more power according to the test data.Za3 is only best value for money two Za3 on mono sound much much better than the V3 monos with upgrades, what a deception, the ZA3 has to be used on XLR and taking out 3 opamps 2 for the sub and the 1 in the left channel
Try and keep on topic (which isn't Topping ) and relevant please .It's what you say but not what you do (technically speaking).
But don't worry, I won't answer you anymore because you are very obviously too 'broad' in mind for me.
Have a good time![]()
For something like this, I would recommend a wound adhesive based on ethyl-2-cyanoacrylate.I am waiting for my cut finger to get a bit better and then I will run it....
To be honest, my reference point is the available ASR reviews of Denon amplifiers, which typically show performance in the range of:Where did you get this number?
All I found was this:
S/N Ratio (Line, IHF-A) 98 dB At denon.com I could not find any performance specifications besides power.![]()
Denon AVR-X1800H Review - Features, Specs, and Performance
Read our comprehensive review of the Denon AVR-X1800H. Discover its features, specs, performance, and why it's a top choice for audio enthusiasts.www.zkelectronics.com
Do you have a better source?
If it is correct, that is not SINAD but noise only and it is in relation to FS I suppose and not 5W and A-rated of course.
For 5W and without A filter this would be already quite different and then there is THD.
But the Denon is still an impressive peace of gear for the price. Just not what I am interested in.
SNR of the A5 is ≈120dB and that is without A-rating.
The 3e Audio A5 is simply a power amp, which happens to offer optional volume control (as has e.g. been common with pro audio power amps forever). It doesn't compete with integrated amplifiers, AVRs or all-in-one boxes at all.For those looking for flexibility, there are better all-in-one solutions in the same price range.
Thanks! In my spreadsheet, I look at 15 kHz THD+N at 5 W, where the PA5 II is 1 dB ahead, but pick 0.5 W or 50 W and the A5 is 4 or 5 dB ahead.Pop and THD vs freq. added to review.
Where are you pulling these figures from, precisely? Looking at the reviews I'm not seeing anything over 90-ish dB SINAD at any power level for the 3800H and 4800H.To be honest, my reference point is the available ASR reviews of Denon amplifiers, which typically show performance in the range of:
90 dB SINAD at ~5 watts
107 dB SINAD at full power (exact power output depends on the model).
You have made your point ad nauseum. This is a power amp that has a volume control, which is probably not a very high quality volume control, but just don't friggin use it if you don't care for it. It already gives additional flexibility beyond those power amps that come with integrated volume control that you cannot even bypass.Like an extremely important crosstalk (unacceptable for a device that wants to be of a 'higher level') at the beginning of the potentiometer's travel...
... we better understand the interest of having added a bypass switch for it (LOL)
It could even be possible that the 5 Watts used for Amir's measurements are precisely within this range of use of the volume potentiometer, which forced Amir (and therefore also the users) to use the amplifier with the bypassed volume to measure it, but above all that he passes the 'test': to check...
Thank you, amirm! Just what I am waiting for.Pop and THD vs freq. added to review.
According to @3eaudio the over current protection of the GaN SMPS units used kicks in above 7.5 A, even if the nominal current output is 5 A.Measured output power is 122 W per channel into 4 Ohms with both channels driven = 244 W total. But the power supply is rated at 38 V and 5 A = 190 W. So either the PS has much more capacity than nominally stated, or this is a massive-overload but very-short-duration test relying on capacitance not sustained power.
The answer is crest factor. The average power of music is much lower than during its peaks. The wattage of the transformer in a traditional AVR will also be much lower than its 9x 180 W or whatever advertised power.Measured output power is 122 W per channel into 4 Ohms with both channels driven = 244 W total. But the power supply is rated at 38 V and 5 A = 190 W. So either the PS has much more capacity than nominally stated, or this is a massive-overload but very-short-duration test relying on capacitance not sustained power.
Anyway, since this is a class D amp it would be good to learn its total efficiency, i.e. from the real power drawn from the wall receptacle to the actual power produced into a resistive load, plotted against the latter. IMO, all reviews of class D amps should include such a chart.
A side comment: Since it is clear that excellent performance can be achieved in amps using the TI class D chip with global feedback, why aren't any AVR manufacturers producing 9-, 11- or even 13-channel models with such amps and built-inSMPS? Surely, the cost and weight of a giant transformer (esp. a shielded toroidal one), a bank of massive rectifiers and caps, etc. in a linear PS could be beneficially eliminated. Let alone not burning ~70 W idle, as AVRs like Yamaha RX-A6A do.
I realized I had confused SINAD measurements with pure signal-to-noise ratio. SINAD is generally about 5 dB lower across the board for all AVRs. Interestingly, Denon AVRs seem to have a gain of around 26–29 dB, which is slightly lower than I expected.Where are you pulling these figures from, precisely? Looking at the reviews I'm not seeing anything over 90-ish dB SINAD at any power level for the 3800H and 4800H.
Also keep in mind that Amir has given the Denons a bit of a handicap here by using "Pure Direct" mode for the measurements. In practice, almost nobody will be using them that way since that disables all processing. When not in that mode, SINAD will decrease a fair amount.