solderdude
Grand Contributor
When you hear sharpness that is annoying then you either need to move the frequency up, lower the gain, or use less gain or modify the filter curve (Q).
The Pro iCAN Signature, which is what I own, has a balanced output impedance of <2 ohms, per its specs. It isn’t the same amp as the Pro iCAN. Multiplying that impedance by 8 (my rough guide) suggests that my amp should be able to handle any headphone with an impedance of 16 ohms and greater.The iFi Pro iCAN has an output impedance of 3.2 Ohm. Amir measured it and said be careful with <32 ohm headphones. While I know that planars don't usually suffer from this due to a flat impedance curve (?), but this one doesn't have a flat impedance curve. Could that possibly be a factor here?
The Pro iCAN Signature, which is what I own, has a balanced output impedance of <2 ohms, per its specs. It isn’t the same amp as the Pro iCAN. Multiplying that impedance by 8 (my rough guide) suggests that my amp should be able to handle any headphone with an impedance of 16 ohms and greater.
For more sensitive IEMs, the 4.4mm and 3.5mm jacks have iFi’s ieMatch tech built in (also reviewed on here) which is supposed to compensate for the excess gain and potential distortion in those circumstances, although this isn’t germane with these cans.
The original Pro iCAN was not gloriously reviewed on here, but Amir did say that it had more than a surfeit of power. I wish I could bear to part ways with my Signature to offer it up for review, because it allegedly has several improvements over the original, and I’ve been very happy with it. The principle reason I went for it was because it has a very well-implemented, built in analog bass boost with several setting levels that I far prefer over the sound with PEQ, and it’s just easier for me. I like quite a bit of bass.
A 47dB volume increase is about 26x the perceived loudness.I could basically make the headphone 4 times louder (percieved) than my comfortable listening levels if I wanted to, but I didn't dare to try.
A 47dB volume increase is about 26x the perceived loudness.
4x louder is about +20dB.
What does Amir mean when he mentions the output voltage settings on a DAC (such as my Topping d90se), and says you’ll get a higher SNR at 5 volts vs 4 if “you have an amp that can handle it)? What determines whether an amp can handle 5v vs 4v? (admittedly off topic, sorry)…Yes, around +10dB is a doubling or halving (-10dB) of perceived 'volume'. It is not exact but approximate.
10dB is a 3.16x increase of voltage (or current) level and 10x increased power level.
More bass, More depth. Details tend to run together more than the Stealth which is more separated.What were the differences for you?
It is supposed to be, although as far as comparisons between other headphones and a revised Harman target for that fixture that accounts for HF preferences, we are lacking those investigations. If you are tuning by ear, no reason you cannot use a peak filter at HF. Most adults technically should be compensating for hearing loss after 12k, too, so that is an argument to use a broader shelf at HF.For EQ'ing purpose, does this mean that for >8 kHz , best to never use any 'peak' filter and better to just use a 'high shelf' to personal taste ?
And is B&K 5128 better > 8 kHz ?
Just wondering if this https://www.amazon.co.uk/Topping-ES9038Q2M-768kHz-Bluetooth-Decoder-Black/dp/B07VJN11TQ/ref=sr_1_9?crid=14AQ1U7DSE3Z6&keywords=topping+dac&qid=1667231587&qu=eyJxc2MiOiI1Ljc3IiwicXNhIjoiNC44MSIsInFzcCI6IjMuNTIifQ==&sprefix=topping+dac,aps,101&sr=8-9 was priced at £1,999, would near enough the exact same argument apply.
Not the finest example but somebody might see my point.
A huge point of this forum is preaching that now, in 2022, engineering has come so far, it simply DOES NOT COST the 'earth' to reproduce audio with excellent fidelity.
I am not a scientist nor headphone designer but I am going to be interested what THIS level of headphone performance costs in 2032.
No disrespect to Mr Dan Clark, dude is clearly a master - but I am a long way from convinced 4K is not comedy ..... I'll go grab my audio quest cable to match.
Mr Yang - looks like there is a massive niche in high performance headphones at Topping prices, rally up a team, revserse engineer (common sense?) sell for £599-699 and you'll dominate the headphone market and sell an absurd amount of units!!! (rather than 3..... Because they cost 4K and 98% of heaphone enthusiasts will not touch them for one reason or another, that's a LOT of lost sales!!!!)
I'm probably too thick to even participate in this conversation.
This is similar to when Audeze would never publish headphone weights cause they were all damn heavyDCA never publishes such data.
Usually only some pointless distortion data, driver dimension, weight and channel matching.
This is similar to when Audeze would never publish headphone weights cause they were all damn heavy
I guess they don’t want to boast about how inefficient they are….
Can’t think of any other reason to leave out such basic specs
This is similar to when Audeze would never publish headphone weights cause they were all damn heavy
I guess they don’t want to boast about how inefficient they are….
Can’t think of any other reason to leave out such basic specs
Not exactly a tech question, but what's the best way to try a pair of these in seattle? Happy to buy them as long as I can return them after using them if I don't want them.Hi everyone!
If I see technical questions in the thread I'll update this post with responses so it's easy for folk to find.
Cheers,
Dan