Sony MDR-CD900ST Studio Monitor Stereo Headphones (Japan Import)

Colour : black

Audio Driver TypeDynamic DriverConnectivity TechnologyWiredFrequency Response30000 hertz

About this item

  • Colour: black
  • Number of packs: 1
  • Connections: Wired
  • Material: format: sealed dynamic driver unit: 40 mm, dome type (CCAW adopted), maximum input: 1000 mW, impedance: 63 Î, sound pressure sensitivity: 106 dB/mW, playback frequency: 5 ~ 30,000 Hz, cable length: (without cable) approx. 200 g: approx. 2.5 m, Plug: Stereo Standard Plug, Ground
Category: AudioOn-Ear HeadphonesRanked #99 of 786 in Audio
8.6Our score
Our verdict

Colour : black

Ranked #99 in Audio · 4 things we like

Quick answer The Sony MDR-CD900ST Studio Monitor Stereo scores 8.6/10 with us. Amazon owners rate it 4.3 out of 5 across 1,488 reviews, in line with the 4.3 average of the 18 on-ear headphones we track. It was listed at $193.00 on Amazon when we last checked in September 2026. Key facts: audio driver type Dynamic Driver, connectivity technology Wired, frequency response 30000 hertz.

Specifications: Type: Closed Dynamic Frequency response: 5-30,000 Hz Impedance: 63 Max. Input Power: 1,000mW Plug: Stereo Standard plug Cord length: 2.5m (Single) Net weight (without cord): 200g Item model number: MDR-CD900ST Weight: 381 g

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Product information

24 specifications
Age Range DescriptionAdult
Antenna LocationRecording
Audio Driver TypeDynamic Driver
Brand NameSony
Built-In MediaCable
Cable FeaturesDetachable
ColorBlack
Compatible DevicesWired Devices
Connectivity TechnologyWired
Enclosure MaterialFormat: sealed dynamic driver unit: 40 mm, dome type (CCAW accepted) Maximum input 1000 mW, impedance: 63 Ω, sound press
Frequency Range5hz - 30khz
Frequency Response30000 hertz
Headphone Jack3.5 mm Jack
Impedance63 ohm
Item Weight290 g
Model NameMDR CD900ST
Model NumberMDR-CD900ST
Noise ControlNone
Number of Items1
Series Number900
Specific Uses For ProductRecording
Style NameModern" or "Contemporary
ThemeMusic, Portability, Professional
Unit Count1 Count

Pros & cons

What we like
  • Colour : black
  • Number of packs : 1
  • Connections : Wired
  • Material : format: sealed dynamic driver unit: 40 mm, dome type (CCAW adopted), maximum input: 1000 mW, impedance: 63 Î, sound pressure sensitivity: 106 dB/mW, playback frequency: 5 ~ 30,000 Hz, cable length: (without cable) approx. 200 g: approx. 2.5 m, Plug: Stereo Standard Plug, Ground
What could be better

    Sony MDR-CD900ST Studio Monitor Stereo: questions & answers

    Is the Sony MDR-CD900ST Studio Monitor Stereo worth buying?

    Yes, it is one of the stronger picks in its group. We score the Sony MDR-CD900ST Studio Monitor Stereo 8.6 out of 10. Amazon owners rate it 4.3 out of 5 across 1,488 reviews, in line with the 4.3 average of the 18 on-ear headphones we track.

    How much does the Sony MDR-CD900ST Studio Monitor Stereo cost?

    It was listed at $193.00 on Amazon when we last checked in September 2026. That is more than the $45.99 median for on-ear headphones in our catalog. Amazon prices change daily, so use the price button on this page to see the current figure.

    What are the key specs of the Sony MDR-CD900ST Studio Monitor Stereo?

    Audio Driver Type: Dynamic Driver; Connectivity Technology: Wired; Frequency Response: 30000 hertz. All 24 specifications are in the product information table on this page.

    What are good alternatives to the Sony MDR-CD900ST Studio Monitor Stereo?

    Similar, well-rated on-ear headphones in our catalog: Sony MDR-ZX310AP ZX Series Wired On Ear (8.8/10, 4.4 stars from 2,331 owners); JBL Tune 570BT On-Ear Wireless Bluetooth (9.4/10, 4.7 stars from 301 owners); Sony WH-CH520 Wireless On-Ear Bluetooth (8.8/10, 4.4 stars from 35,032 owners).

    Customer reviews

    All reviews on Amazon
    4.31,488 global ratings
    5 star80%
    4 star10%
    3 star0%
    2 star0%
    1 star10%

    Breakdown from the 10 most helpful reviews we imported.

    A
    A. Heifetz
    Verified purchaseJuly 31, 2014
    these are supposedly used in all the studios in Asia where people know what a good pair of headphones should sound like

    I have been using a well broken-in pair (and much reviled by the headfi.org crowd) of Koss Pro4AAAT for some now. I wanted to try something new and bought these. My decision was based on several factors. These have rave reviews everywhere. I recall reading a post somewhere that the midrange these headphones produce is "magic". But it is more than having been reviewed by golden-eared kids on headfi.org - these are supposedly used in all the studios in Asia by real professionals who make the music that we listen to, and they should know what a good pair of headphones should sound like. These hea

    W
    wambo
    Verified purchaseNovember 27, 2023
    A required headphone for anyone who listens to music produced in Asia.

    A required headphone for anyone who listens to music produced in Japan, especially if it was produced in the era these were introduced (late 80s).These are still used today, on channels like THE FIRST TAKE. Which is what spurred me to check them out again. These had been on my radar for years, but I could never justify the exorbinant import price, which often topped $300. These have dropped to a much more reasonable at $150 since I first read about them.Best I can tell the very similar looking MDR-7506 is effectively a less exprensive international/consumer version of these - and while I haven

    A
    Amazonian Reviewer
    Verified purchaseApril 18, 2025
    Used by Pros in Japan for a Reason — Read Why

    I've had these headphones for 2 years now and they are phenomenal in terms of studio monitoring, flat sound, vocal mixing and midrange sounds. I've waited this long to 'review' this headphone mainly for durability purposes to see if it'll hold up. I record and make music casually/as a hobby/for music youtube channel. I've seen people in the comments seem to be using this headphones for casual listening. They're not meant for that. A lot of people who are used to “mainstream” headphones like Bose, Sony WH-1000XM series, or even AirPods Max often feel underwhelmed by the CD900ST at first. This i

    T
    Tom Erickson
    Verified purchaseJuly 30, 2024
    "For Digital"

    I purchased these because of how fond I've been of my MDR-7506 cans- I had done a bit of research that basically indicated to me that these were a tinge more warm and colorful than the MDR-7506's extremely clean and neutral presentation- this is true! These were introduced to market in 1988 and are visually adorned with marketing that says they're "For digital"- my speculation is that these headphones are tuned a little warm to compensate for the shock many listeners would have had going from the warmth and subtle ambiance in analog music to the comparatively sharp and fuzz-less digital sound

    E
    erlking
    Verified purchaseMarch 4, 2024
    Finally Listening to 'Plastic Love' the Way It Was Meant to Be Heard

    TLDR:Purpose built headphones for media professionals to meet specific demands within the recording industry of 1980's Japan. If you're buying them just to listen to music, there are a ton of other good options at or below this price point. These headphones might work well for people doing audio production, or people who are nostalgic about bubble era Japan and want to support Made in Japan products.Build, Packaging and Initial Impressions:I bought these to replace my AKG 240 headphones when they started to go out. I loved the K240s but I wanted to try something different. My initial impressio

    J
    Jason Smith
    Verified purchaseMarch 22, 2025
    Sound

    Just didn't sound good to me

    P
    PaulN
    Verified purchaseMarch 28, 2023
    Good Sound - Terribly Undersized Ear-Pads

    I purchased a pair of the Sony MDR-CD900ST Headphones several months ago but only recently have begun listening with them ... comparing them to other headphones.The first thing that I noticed was that these headphones seemed very light (compared to the MDR-V6, MDR-7506, MDR-V900, etc).The second thing that I noticed was that the ear pads had the ear pieces 'scrunched-down' on my ears - the pressure exerted by the earphones was light enough but after a bit I went digging through my replacement ear pads (bought last year during a period of headphone tinkering).I replaced the 'stock' ear pads wit

    T
    TruthTeller
    Verified purchaseSeptember 4, 2023
    On par with Sony MDR V6 and 7506. Ear pads a disgrace.

    I have been fascinated by these cans for the last few years as I used to see them on eBay going for a lot more money since they come from Japan there was a big shipping fee.Whatever reason they become available at a much better price point in the last year or two on eBay and hear an Amazon in fact, the ones I bought were used although they feel Brand New so maybe it was an open boxI’ll get to the point The ear pad issue is no joke. I just can’t imagine taking these headphones seriously with the ear pads they come with. I understand if I worked in a studio and I was looking for something differ

    Customer reviews are shown as published on Amazon and are not written by Do Best Deal.