Hi, everyone,
I just got mine for a few day.
I want to talk about the sound quality or music quality.
You can still listen to music when you are in wired mode and circuitry is off.
However, the sound is not good at all. Very flat and boring.
So, my advice is to turn it on at all time during use.
Turn on NC depends on the environment that you are in at the moment.
With headphone turned on, the circuitry (the SONY signature sound touch) gives a brighter vocal.
Actually, it moves the singer forward.
Even for rock music, you can hear both guitar beats, piano keys, and vocals very bright.
Clarity and Separation & Position of musical instructment are very good.
Like if you are listening to Michael Jackson's Billy Jean, it actually plays his voice brighter and higher clarity. Very amazing.
This headphone can play all kinds of music.
I have played the following music with "VOX PLAYER" on my iPhone 6 plus 64GB:
Very little change in sound signature on both wired and bluetooth mode, NC ON or OFF.
Most of the music quality results from the design of the circuitry.
(1) Vocal focus:
Diana Krall "latest Turn Up the Quiet" - I'll See You In My Dream (FLAC 16/44.1).
Barbra Streisand - Woman in Love (FLAC 16/44.1).
Ed Sheeran - Thinking out loud (FLAC 16/44.1).
John Legend - All Of Me (FLAC 16/44.1).
Sam Smith - I'm Not The Only One (FLAC 16/44.1).
Gloria Estefan(SACD) - (DSF to FLAC 24/96).
George Benson - NOthing's Gonna Change My Love To You (FLAC 16/44.1).
Sergio Mendes - Never Gonna Let You Go(from SACD - Timeless Love) - (DSF to FLAC 24/96).
*This headphone is excellent for VOCAL and GREATEST LOVE SONGs. The voice is bright, and overall clarity is very high.
(2) Live performance - Rock
SLASH - Rocket Queen (form Made in Stoke 24/7/11 Album) - (FLAC 16/44.1).
Bob Marley & The Wailers - No Woman, No Cry (LIVE) (FLAC 16/44.1).
*This headphone makes Bob Marley's voice "sweet". Goodness. The Mids and His are high clarity and bright. background vocal and instructment position are well separated.
*Sound Stage is very wide and deep for a close-back headphone.
*Also, the drums do not bleed into the guitar or the Mids. Excellent separation and great details.
(3) Electronic music
The Chainsmokers/Coldplay - Something Just like This (FLAC 16/44.1).
*Goodness. The digital drums(synthetic bass) just sounds amazing on this headphone.
Vocal of lead singer Chris Martin just becomes very high clarity and the synthetic bass won't leak to the Mids and His.
Does this means it is "artificial"? may be for some, but I personally like it.
I can hear many hidden details in this song with this headphone, which I have not experienced on other headhone at this price range (or lower).
(4) Rock
Queen - Bohemian Rhapsody (FLAC 16/44.1).
UFO (The Best of The Decca Year 1970-73) - Follow You Home (FLAC 16/44.1).
UFO (The Best of The Decca Year 1970-73) - Give Her The Gun (FLAC 16/44.1).
*This headphone makes vocal on rock music more forward than usual, but in a good way. Also, piano notes are bright, too.
*It resembles the right drum sounds for rock music. Not too deep, just solid and right amount of pounding.
(5) POP
SIA - Chandelier (FLAC 16/44.1).
SIA - Elastic Heart (FLAC 16/44.1).
Gummy (Korean singer) - You Are My Everything (FLAC 16/44.1).
BIGBAND (Korean group) - IF YOU (FLAC 16/44.1).
WHAM - Careless Whisper(from SACD - Make It Big) - (DSF to FLAC 24/96).
*This is another great match for this headphone. POPs stand out on this.
All the beats are high clarity and sound stage feels wider than most close-back headphones.
(6) Rap
EMINEM - The Monster(feat. Rihanna) *this songs has many background instructments and sound mixing.
*This headphone displays the background in great details. one will not miss anything.
*For bass, this headhpone does not go too deep, but just the right amount so that one will not get fatigue from long listening.
(7) BLUETOOTH TRANSMISSION SPEED Testing
EMINEM - Rap God *the ultra-speed rapping part (FLAC 16/44.1).
DRAGONFORCE - Through the Fire and Flames (FLAC 16/44.1).
SLASH - Rocket Queen (form Made in Stoke 24/7/11 Album) - (FLAC 16/44.1).
**Additonal (Extra) testing:
I use it in wired mode with "LG Hi-Fi Plus" module.
{connection by using "Lightning to Camera adaptor cable"}
The LG Hi-Fi Plus has its own built-in DAC (ESS brand).
{NOTE: iPhone 6 plus has OEM DAC chip by Cirrus Logic, which is a good one, too}
This does change the sound signature, since all music files are being processed by the ESS chipset now.
The result (with LG Hi-Fi Plus module) are focus in two area:
(1) The bass feels more solid.
(2) The vocal is soften, and the singer is pulled back, making the piano notes and guitar strings louder and more forward.
For vocal like John Legend-All of Me, Ed Sheeran- Thinking out loud, Sam Smith- I'm Not The Only One,
it makes listening better. Vocal is more smooth. So for the listeners, the ears feel better as voice is not as shape.
Overall, SONY MDR-100ABN is an excellent NC headphone in this price range.
I had a QC25 before it. For NC performance, this SONY headphone is very close, just behind QC25.
But in sound quality, it is much better than QC25.
Final word. I also own a SONY MDR-1ADAC. This is an excellent headphone for iPhone, as it has a built-in DAC and headphone amplifier.
It is a great sound upgrade for the iPhone.
I wish SONY would make a MDR-1ADAC with NC function. This will be the ultimate close-back headphone for travellers who want an on-ear headphones.