My order, placed on March 3, was canceled yesterday (March5), with the following explanation: "Unfortunately, the seller had to cancel your order due to the following reason: I'm out of stock or the item is damaged." The ebay site shows that the product is out of stock ("579 sold").

I have both the 58X and the 6XX. With my inexpensive headphone amplifiers or DAC/Amp (Mayflower O2, Bravo V2 with Gold Lion tube, iFi Uno, and one or two more) the 58X simply sounds better to me in all aspects. In particular, it has better PRaT, and I value that especially. Let me emphasize...

Please note that this sale is for the SE model, not the original one. I have both, although my original CAL! is sadly broken (at the yolk). The SE is brighter, more lively, less "biocellulose-like." I actually thought that it did not use a biocellulose driver, but I have just checked the...

This shows up as $169 for me. I suspect something happens when clicking the link; but I tried editing manually the link in the Firefox search bar and still get $169. I also never had $99 show for the DT 880 PRO 250 Ohm for which you provided a link in your February 6 post. Any suggestions?

Can you please provide a link?

For what is worth, my Pioneer DV-563A-S can also choose between CD and SACD layers in hybrid SACDs, but (unless I missed a command) only in the settings menu.

I have a DT-1350 and a Sennheiser Amperior, which is an aluminum-bodied HD25 variant. See https://www.stereophile.com/content/most-excellent-sennheiser-amperior-and-hd-25-1-ii for Tyll Hertsens' review and measurements. The 1350 has stronger bass, but overall I prefer the Amperior, which has a...

The Uno drives my Hifiman HE400se very well. I understand that other Hifiman headphones are more demanding.

... and the W10s are back at $ 44.99 (from regular price of $249.99): https://www.adorama.com/wew10.html In both cases, do not forget to add ?emailprice=t at the end to get the sale price.

They do not seem to have a 3.5mm balanced (or 3.5mm PRO balanced) cable, which is needed for the ifi UNO and, I imagine many other balanced (or S-balanced) amplifier. I have posts describing a workaround with a 4.4-3.5 balanced adaptor in the ifi Uno and Hifiman 400SE threads. I wonder why...

I bought a pair (well, actually two!) in December 2022, when they were on sale for 49.99. They have become my favorite IEMs. (Please note that I do not own particularly fancy IEMs.) Until reading this message today, I had used them only wired and had never tried the Bluetooth adaptor. Well...

I received one last Wednesday that I had ordered at the "open box" price of $79.99 previously mentioned in this thread. I may still contact them and see whether they would give me a discount because of the new lower price, although your post makes me feel better! :)

Yes, I am sorry for my confusion about the companies. Concerning the "S," I recommend reading the white paper in my original post for the whole story. The S-balanced set up can be used with TRS and TRRS connectors, which is unusual.

Since some of your amplifiers (the ones listed at https://ifi-audio.com/wp-content/uploads/2018/11/iFi-audio-xCAN-S_BAL-Tech-Note.pdf and the Uno, at least), use S-balanced outputs that work with 3.5mm TRRS and 3.5mm PRO, I suggest that you should provide a 4.4mm to 3.5mm TRRS or 3.5mm PRO...

In case you are interested in using the Uno in balanced mode and have a Hifiman HE400se (or other headphones with 3.5mm connectors for the earcups), please see my post in the HE400se thread for a pointer to readily available cables that work...

A quick update. I received both cables yesterday and have just tried them. They work fine with the HE400se and the iFi UNO DAC/AMP. I have not done any critical listening and am not equipped to do measurements. I doubt that I will note any difference between the unbalanced and balanced...

Thank you very much for the suggestions. I am about to order the following: 1. https://www.amazon.com/dp/B09XK862QJ/ (4.4mm balanced male to dual 3.5mm), and 2. https://www.amazon.com/dp/B0828K966Q/ (4.4mm balanced female to 3.5mm balanced male). This is more expensive than I would have liked...

I am using my HE400se with an iFi Uno DAC/Amp. I like this combination. I would like to try it in balanced mode and am looking for the right cable. According to the iFi literature (technical note at https://ifi-audio.com/wp-content/uploads/2018/11/iFi-audio-xCAN-S_BAL-Tech-Note.pdf, linked to...

While I have both, I use them very rarely. (The KPH40 is currently in Italy with my daughter :).) Still, I would guess the HD598.

Shure SRH1440 Professional Open Back Headphones, $127 Prime Day Deal https://www.amazon.com/Shure-SRH1440-Professional-Headphones-Black/dp/B0073P4ESO

I never had the good fortune to hear the ZEN CAN. I can just say that I like the combination of the Uno with the Hifiman HE400se better than the other combinations I tried with the headphone amplifiers (and DAC+Amps) I own, including the O2/6XX combination. My previous best pairing was the...

I own only four headphone amplifiers: a (Mayflower) Objective 2, a Bravo V2 (with Gold Lion tube), an original Fragonfly (DAC + Amp), and an iFi Audio Uno (DAC + Amp). None of them work as well with my HD6XX as the output of my Denon PMA-600NE. The Objective 2 works very well with my HD58X...

HD6XX on sale at $239 on drop (https://drop.com/buy/massdrop-sennheiser-hd6xx): not at Black Friday levels, but still a discount over the current list price.

1MORE Triple Driver Over-Ear Headphones (H1707) $109 from 1MORE at https://usa.1more.com/products/1more-triple-driver-over-ear-headphones. These are listed as "Clearance" and are described as the (usually considered better) graphene version. There have been better prices in the past (certainly...

I do not have the HD600, but I had the HD6XX before buying an HD58X. I use the HD 58X a lot---it is my main office headphone. My impression is that the HD58X is much easier to drive, so if you want the HD6XX to sound better than the HD58X, you need to invest in a very good amplifier. If your...