Great sound, helpful tech support

Sound quality is excellent. A step up from my B&O H8s. These are not $3,000 wired headphones, but for travel I'm not aware of anything better in the wireless over-ear category with ANC. I had some initial problems pairing with my Astell&Kern portable media player. That was resolved by doing a factory reset on the 5909s - with the help of the very responsive tech support at Harman Int'l: Donald B. Jacobs Field Support Engineer Harman Luxury Audio Group, Lifestyle Division csupport@harman.com All in all, very pleased with this purchase.

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Mark Levinson No. 5909

I'm interested in products designed to last while also providing quality sound, and so far these headphones fit the bill. The build quality of the headphones is high. Aluminum and soft leather make up most of the external material selection, with the only plastic I can detect being the control buttons and the housing around them. I have a probably average head size, and the headphones fit snugly around my head at their tightest, so they could be a little tighter. In comparison to my 1st gen Sennheiser Momentum over-ear wired headphones, the cups for the ears are larger and provide actual over-ear wear compared to the Sennheiser's on-ear sizing. The case and all cables feel like quality as well. Sound quality rivals that of my wired Sennheisers in the wireless setting. It took my iPhone X a few tries to connect but since the initial pairing I've had no issues. I noticed a clarity in these headphones that is absent in my Sennheiser Momentum True Wireless 2s. Because of their impressive soundstage, there were multiple times I got the impression my music was playing from an external source when it wasn't. In public settings the wired sound quality is moderately improved, but honestly either connection provides music that sounds as good or better than any other heaphone I've used. The active noise canceling works well and there's a noticeable difference in modes. I had questions about the cost of these, but given what I wanted these headphones to do I will

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Very Pleased!! Highly Recommend

Very pleased. Sound is amazing. I've had multiple pairs of Bose noise cancelling, Sony and Air Pod Max. These blow them away. The comfort is incredible and they are easy to use, but the sound is the best part.

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Great quality and sound but...

The product is built well. Not too much plastic parts, good leather and stitching where it counts. The quality of the product is not in question. When making phone calls, I have had many people say that they can hear me SO Much better than any other time I use other in ear headphones. So far they only downside I have seen (for my taste) is that when I wear them during my walks around town, with every step I hear a thump (not a loud one, mind you but it seems like a thump sound with every step). It feels like I can hear my own footsteps and that is distracting while trying to do a walk about the park or around town. But stilling still and listening to it or on the plane, the sound is fantastic and the keeps the plane noice out better (or just as good as my BOSE headphones). Used it on 3 different flights and it's my go to for flights now or just sitting in the backyard and enjoying my book on tape while I eat or chill out.

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Luxury ANC BT Headphones

The ML5909 headphones are exceedingly fine with luxurious fit and finish. I am a classically trained musician who does recording. If this perspective interests you, read on. On first listening (prior to burn in) my first reaction was that the sound was startlingly clear. Details hidden using most other earphones were suddenly audible. I would characterize the ML5909 sound signature as slightly emphasizing the treble. Prior to burn in, I heard a slightly tizzy treble with some undesirable resonance around the open E string of the violin as well as in vocals at similar pitches. Burn in improved this but it is still subtly present. The app allows some tweaking of the bass but no other frequency ranges. UltraHD tracks from Amazon Music were noticeably better compared to standard CD level. The best sound quality is with the supplied cable and USB-C/A adapter into my PC. My single disappointment is that I've experiened random and sometimes frequent (sometimes every few seconds!) music stoppages for no apparent reason. This occurs even when my iPhone is on the desk directly in front of me 1 ft away, playing tracks physically stored on my iPhone so the wi-fi connection should not be an issue. Unfortunately, Mark Levinson customer service couldn't help because they had no hands on experience yet (!) This music interruption problem will be a deal breaker, but if it can be solved, I would otherwise highly recommend the ML5909 as the Audiophile pick among BT ANC headphones. Update: I commend the support team at both Crutchfield as well as Mark Levinson in working with me to determine that there was a malfunction of the On-Head Detection system that seemed to cause the frequent music stoppages. A replacement 5909 now works as it should. I would add also that as I gain more listening time with the No. 5909, I remain enthusiastic about the remarkable clarity of the sound. That said I would characterize the sound signature as a little on the lean side, even with the Bass Contour enhanced. I find myself turning up the volume, sometimes >70% in order to gain the fullness of sound that I've grown to expect from recordings I'm familiar with. This need for higher volume setting is mainly with BT connections; wired connections seem to have a significantly higher volume, in line with amps I use, only requiring volume settings in the 40-50% range. Also, as pristine as the sound is over BT, the sound using the USB-C/A cable to my PC is substantially better - I would call it truly audiophile quality. And listening with the USB-C cable and with 1/4" adapter into a Sennheiser HDV-820 headphone amp, the sound is superb. Overall, the No. 5909 performance and features are phenomenal and I highly recommend it. I'm also highly appreciative of the well known customer service at Crutchfield as well as Mark Levinson, both of which definitely live up to their reputation.

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Mark Levinson No. 5909

The most incredible clear sound i have ever heard

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