Measurement
NAD VISO HP50
• 40 mm driver
• detachable cord
• 3-button remote for iOS
• RoomFeel™ technology
NAD VISO HP50 Measurement
[1. Frequency Response ]
Uncompensated
Uncompensated (Overlay off)
Diffuse Field Target Compensated
Olive Welti Target Compensated
CSD - Olive Welti Target Compensated
[2. Square Wave ]
300Hz
30Hz
[3. Minimum Phase ]
[4. Harmonic Distortions ]
94 dB SPL @ 500Hz
[5. Impedance ]
DC ohm
Black: Impedance Magnitude
Green: Electrical Phase
[6. Sound leakage ]
Earpads of HP50 are a little small to fit the ears exactly, so these inevitably have sound leakage through the gap under the cushions. The amount of leakage would vary from person to person.
Uncompensated
[7. Detailed FR plots ]
Uncompensated
Red: back
Pink: center
Orange: down
Yellow: forward
Green: up
Black: averaged
[8. Comparison ]
Uncompensated
Black: NAD VISO HP50
Orange: Audio-Technica M50x BL
Uncompensated
Black: NAD VISO HP50
Orange: OPPO PM-3
Interesting how closely matched it is with the audio technica. I know the NAD has a great reputation, so the A-T must also sound really good also.
ReplyDeleteI was quite satisfied with M50xBL in terms of stable treble, design, sound insulation and so on. Only problem of that was the bass response, which is higher than my personal tolerance.
DeleteThe A-T would probably be a good match for someone who wears glasses (Leakage).
ReplyDeleteI don't think there is anyone more qualified than Paul Barton for knowing what a good headphone should sound like, which is comparable to an accurate loudspeaker(and listener) well placed in a "neutral" room.
ReplyDeleteIt seems so. Thanks to his tuning and their RoomFeel™ technology, maybe?
DeleteYes, an anechoicaly accurate loudspeaker, when placed in the before mentioned situation, has a relatively predictable response which is the target he most likely uses for his "room feel" technology. The industry should really be taking notice of not only the only the OW, but of this insight as well.
ReplyDeleteI see. Maybe I should try the products from PSB if I've a chance. I wonder how they applied the RoolFeel™ technology on their IEMs.
DeleteI can't imagine how difficult it must be to acoustically shape an acceptable response target for iem's after setting that target with full size phones. The acoustics involved are so different.
ReplyDeleteIEMs definitely need more bass to sound like speakers. Right now the harman target makes full size ones sound exactly like flattened speakers. After doing some listening I find this is a good target for IEMs: extending from 500hz up about 10dbs. The harman target extends out from 200hz up about 5dbs. A lot of IEMs already got this done well, like the Fiio EX1, Noble Audio Kaiser 10, or even Sony MH755.
Deletethe close the headphones is to your ear, the more bass is needed. making headphones sound like room speakers is also much more natural sounding than diffuse target "flat". I never really liked the tinniness of the ER4. Also, binaural recordings work better with the Harman target.
DeleteThank you for detailed measurements. But what's that RoomFeel tech? Feeling of listening in the room?
ReplyDeleteAs far as I know, yes. Actually I'm regarding that as one of the FR tuning target, not a technology or a tuning method itself. But NAD named that thing 'RoomFeel technology', so I'm just calling that like that anyway.
DeleteCheck this out..
Deletehttp://www.innerfidelity.com/content/katzs-corner-episode-10-mid-priced-sealed-headphone-survey#ww52EwKHblXBa6VO.97
I was on the OPPO PM-3 beta team, so I'm proud, to say the least! WEEEE!
lol I tried the PM-3 before, and can certainly remember the sophisticated design and comfortable cushions without fitting issues.
DeleteCan you do full measurements of Oppo PM-3?
ReplyDeleteSorry for the late reply.
Deletehttps://clarityfidelity.blogspot.com/2021/11/oppo-pm-3-over-ear-headphones.html
↑ I uploaded measurements of OPPO PM-3