---
product_id: 2538899
title: "MDR-CD900ST Studio Monitor Stereo Headphones (Japan Import)"
brand: "sony"
price: "¥62639"
currency: JPY
in_stock: true
reviews_count: 13
category: "Sony"
url: https://www.desertcart.jp/products/2538899-mdr-cd900st-studio-monitor-stereo-headphones-japan-import
store_origin: JP
region: Japan
---

# 1000mW max input power 40mm sealed dynamic driver Frequency response 5-30,000 Hz MDR-CD900ST Studio Monitor Stereo Headphones (Japan Import)

**Brand:** sony
**Price:** ¥62639
**Availability:** ✅ In Stock

## Summary

> 🎶 Hear Every Detail, Own Every Beat.

## Quick Answers

- **What is this?** MDR-CD900ST Studio Monitor Stereo Headphones (Japan Import) by sony
- **How much does it cost?** ¥62639 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/2538899-mdr-cd900st-studio-monitor-stereo-headphones-japan-import)

## Best For

- sony enthusiasts

## Why This Product

- Trusted sony brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Extended Reach Cable:** 2.5m wired connection ensures freedom of movement in studio or workspace without compromise.
- • **Precision Studio Sound:** Experience crystal-clear audio with a wide 5-30,000 Hz frequency range, perfect for professional monitoring.
- • **Powerful Dynamic Drivers:** 40mm dome-type drivers deliver rich, detailed sound with exceptional clarity and depth.
- • **Trusted Professional Standard:** Sony’s MDR-CD900ST is the go-to choice for audio engineers and creatives demanding accuracy.
- • **Robust Build, Lightweight Comfort:** Sealed dynamic design weighs just 200g (without cable) for all-day wear without fatigue.

## Overview

The Sony MDR-CD900ST Studio Monitor Stereo Headphones are a Japan-imported professional-grade audio tool featuring 40mm sealed dynamic drivers, a broad 5-30,000 Hz frequency response, and a robust 1000mW max input power. Lightweight at 200g (without cable) and equipped with a 2.5m wired connection, these headphones deliver precise, high-fidelity sound tailored for studio monitoring and critical listening.

## Description

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

Review: 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 headphones are also considered by many to be superior to the popular highly regarded Sony 7506 headphones. I listened to a number of studio monitor headphones but I never heard Sony 7506. I owned a very similar model, a highly rated Senal SMH-1000, and I gave it up because it sounded too abrasive to my ears. Anyway, Sony MDR-CD9000ST is a very good looking pair of headphones, except for that cheesy 80's "for digital" sticker, as if someone still makes headphones strictly for analog music. The headphones are slim and not overbuilt, but the fit and finish is excellent. They are very light and comfortable. I could keep them on for hours. Compared to these, my Koss headphones feel like two bricks squeezing my head, although I am used to it. But the sound did not impress me. The sonic signature was similar to the Senal headphones, except that the sound was much more delicate and refined. Still, to me the headphones sounded "zingy", "hissy" and "wispy" - bright, sibilant, lightweight and thin. I listened to the headphones for about 20-30 hours and nothing seemed to change. I really wanted to keep these but I like what I like so I am going to have to give them up and go back to my Koss phones. Although I did not care for their sound, I am still going to rate these five stars, because these are very popular professional quality headphones that have their purpose - maybe the studio mixes created by using them turn out to be superior? Unfortunately, only a few models of headphones are available locally to be auditioned, and they are typically the least expensive ones. So we end up relying on amateur reviews to make purchasing decisions. These reviews really don't mean much, because we all have our individual preferences. The self-professed experts throw around terms like soundstage, bass quantity, treble extension, and whether there is a midbass hump or a low treble suckout. You can read stuff like "V-shaped dark presentation" and similar nonsense. Manufacturers would probably laugh if they read some of those reviews. What matters the most to me is how the headphones are voiced. I like gorgeous, fleshed out tones. When I hear an instrument, like a piano or a violin, I listen for the body and texture of the sound. When I hear a drum, I want to feel the energy of the impact. My advice is to listen to these before buying.
Review: 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't heard them, I did watch a teardown of both the CD900ST and the MDR-7506, and that was my conclusion. The MDR-7506 just has a collapsing mechanism as well. So if you want to save some money from importing, that would be the way I would go. Me, I'm into this crap enough that I wanted the EXACT headphones that get used in studios. And I wanted that FOR DIGITAL sticker. So yes, I paid the charming 80s Japanese sticker tax. Remember, these are FOR DIGITAL only. No analog allowed. 🙃 I'm still waiting for my Yaxi stPad2...pads to arrive. Because, while these do sound incredible out of the box, long term comfort is an obvious issue. Less of an issue in the studio, I presume, where these are going on and off of ears frequently. No comfort issues with the headband, just pressure on ears from, I will call them questionably thin pads. They are infamous. Less infamous the great adjustment system that takes the guess work out of having these evenly adjusted, and remembering where they should be. Adjustement steps are definite, sturdy, and most importantly, numbered. I will stress they are not wildly uncomfortable as is, I've worn far worse. In fact, in the future I may get a set of MDR-7506's for use with Yaxi Pads to keep these as original as possible to what producers and musicians heard in the studio in 1987. The way I would sell someone on these is to have them listen to something, anything, on the YouTube channel THE FIRST TAKE. The rustling, background noises, banter, introductions transport you there, and then the performance blows you away. It's like a personal concert. Continuing, as studio monitors should, it's garbage in, garbage out. Poorly mixed and produced music is going to sound poorly mixed and produced.

## Features

- 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000UPEJCU |
| Additional Features | Lightweight |
| Age Range Description | Adult |
| Antenna Location | Recording |
| Audio Driver Type | Dynamic Driver |
| Best Sellers Rank | #84,018 in Electronics ( See Top 100 in Electronics ) #868 in On-Ear Headphones |
| Brand | Sony |
| Brand Name | Sony |
| Built-In Media | Cable |
| Cable Features | Detachable |
| Color | Black |
| Compatible Devices | Wired Devices |
| Connectivity Technology | Wired |
| Control Method | Remote |
| Control Type | Touch Control |
| Controller Type | Volume control |
| Customer Reviews | 4.3 out of 5 stars 1,490 Reviews |
| Ear Placement | Over Ear |
| Earpiece Shape | Rounded or oval |
| Enclosure Material | Format: sealed dynamic driver unit: 40 mm, dome type (CCAW accepted) Maximum input 1000 mW, impedance: 63 Ω, sound pressure sensitivity: 106 dB/mW playback frequency: 5 ~ 30,000 Hz, cable length: (without cable) approx. 200 g: approx. 2.5 m, Connector: standard stereo plug, ground |
| Form Factor | On Ear |
| Frequency Range | 5hz - 30khz |
| Frequency Response | 30000 hertz |
| Headphone Folding Features | On Ear |
| Headphone Jack | 3.5 mm Jack |
| Headphones Ear Placement | Over Ear |
| Impedance | 63 ohm |
| Item Weight | 290 g |
| Manufacturer | Sony |
| Model Name | MDR CD900ST |
| Model Number | MDR-CD900ST |
| Noise Control | None |
| Number of Items | 1 |
| Series Number | 900 |
| Specific Uses For Product | Recording |
| Style Name | Modern" or "Contemporary |
| Theme | Music, Portability, Professional |
| Unit Count | 1 Count |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** Sony
- **Color:** Black
- **Ear Placement:** Over Ear
- **Form Factor:** On Ear
- **Impedance:** 63 ohm

## Images

![MDR-CD900ST Studio Monitor Stereo Headphones (Japan Import) - Image 1](https://m.media-amazon.com/images/I/61sjWix2kvL.jpg)

## Questions & Answers

**Q: are these compatible with iphones (5 or 6) and samsung galaxy phones?**
A: These are true studio monitor headphones! They have no inline controls and a long, straight, somewhat heavy cable with a heavy metal 1/4" phono connector. So, although they will work with ANY phone, they are not the best suited to portable use. They don't fold up and you'll need an adapter to plug them into your phone (they don't come with one, or anything else for that matter). They also have fairly flat frequency response; for most people this is experienced as cold, "sterile" sound with not enough bass! If you are set on these, might I suggest the MDR-7506 model. They are almost identical physically, but fold up, have a coiled (but still heavy) cord and a "warmer" more pleasing sound. They also come with an integrated mini phone adapter (just unscrew the 1/4" connector!) Still, not the most portable and no inline controls, but you'll save some money and probably like them better.

**Q: Is it possible that after 10-hour flight bass become weaker? Thank you.**
A: Weaker? No. I have owned 3 pairs in my life over the last 2 decades. Highly doubt this will happen in a 10 hour time period but over time, the pads can flatten and therefore the drive becomes just a half-millimeter to one millimeter closer to your ear causing it to sound like there is less bass and more prominent mids and highs. I say this because when my pads deteriorate over time and I've bought new stock pads, It sounds like the highs become slightly recessed making it sound like there is more bass.

**Q: I'm looking for a case for these, can anyone give a reasonable recommendation?**
A: No

**Q: Are the legit ones Made in Japan?**
A: Yes

## Customer Reviews

### ⭐⭐⭐⭐⭐ these are supposedly used in all the studios in Asia where people know what a good pair of headphones should sound like
*by A***Z on July 31, 2014*

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 headphones are also considered by many to be superior to the popular highly regarded Sony 7506 headphones. I listened to a number of studio monitor headphones but I never heard Sony 7506. I owned a very similar model, a highly rated Senal SMH-1000, and I gave it up because it sounded too abrasive to my ears. Anyway, Sony MDR-CD9000ST is a very good looking pair of headphones, except for that cheesy 80's "for digital" sticker, as if someone still makes headphones strictly for analog music. The headphones are slim and not overbuilt, but the fit and finish is excellent. They are very light and comfortable. I could keep them on for hours. Compared to these, my Koss headphones feel like two bricks squeezing my head, although I am used to it. But the sound did not impress me. The sonic signature was similar to the Senal headphones, except that the sound was much more delicate and refined. Still, to me the headphones sounded "zingy", "hissy" and "wispy" - bright, sibilant, lightweight and thin. I listened to the headphones for about 20-30 hours and nothing seemed to change. I really wanted to keep these but I like what I like so I am going to have to give them up and go back to my Koss phones. Although I did not care for their sound, I am still going to rate these five stars, because these are very popular professional quality headphones that have their purpose - maybe the studio mixes created by using them turn out to be superior? Unfortunately, only a few models of headphones are available locally to be auditioned, and they are typically the least expensive ones. So we end up relying on amateur reviews to make purchasing decisions. These reviews really don't mean much, because we all have our individual preferences. The self-professed experts throw around terms like soundstage, bass quantity, treble extension, and whether there is a midbass hump or a low treble suckout. You can read stuff like "V-shaped dark presentation" and similar nonsense. Manufacturers would probably laugh if they read some of those reviews. What matters the most to me is how the headphones are voiced. I like gorgeous, fleshed out tones. When I hear an instrument, like a piano or a violin, I listen for the body and texture of the sound. When I hear a drum, I want to feel the energy of the impact. My advice is to listen to these before buying.

### ⭐⭐⭐⭐⭐ A required headphone for anyone who listens to music produced in Asia.
*by W***O on November 27, 2023*

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't heard them, I did watch a teardown of both the CD900ST and the MDR-7506, and that was my conclusion. The MDR-7506 just has a collapsing mechanism as well. So if you want to save some money from importing, that would be the way I would go. Me, I'm into this crap enough that I wanted the EXACT headphones that get used in studios. And I wanted that FOR DIGITAL sticker. So yes, I paid the charming 80s Japanese sticker tax. Remember, these are FOR DIGITAL only. No analog allowed. 🙃 I'm still waiting for my Yaxi stPad2...pads to arrive. Because, while these do sound incredible out of the box, long term comfort is an obvious issue. Less of an issue in the studio, I presume, where these are going on and off of ears frequently. No comfort issues with the headband, just pressure on ears from, I will call them questionably thin pads. They are infamous. Less infamous the great adjustment system that takes the guess work out of having these evenly adjusted, and remembering where they should be. Adjustement steps are definite, sturdy, and most importantly, numbered. I will stress they are not wildly uncomfortable as is, I've worn far worse. In fact, in the future I may get a set of MDR-7506's for use with Yaxi Pads to keep these as original as possible to what producers and musicians heard in the studio in 1987. The way I would sell someone on these is to have them listen to something, anything, on the YouTube channel THE FIRST TAKE. The rustling, background noises, banter, introductions transport you there, and then the performance blows you away. It's like a personal concert. Continuing, as studio monitors should, it's garbage in, garbage out. Poorly mixed and produced music is going to sound poorly mixed and produced.

### ⭐⭐⭐⭐⭐ Used by Pros in Japan for a Reason — Read Why
*by A***R on April 18, 2025*

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 is the gold standard in Japan and why a lot of studios in Japan (and other parts of Asia and the world) uses these headphones: First is its neutral, flat sound signature. These are not meant to sound good in the usual sense like Bose or Airpods Max or Senheisser, they’re meant to be accurate. They don’t hype up the bass or gloss over harshness. If something sounds bad, it WILL sound bad. That’s exactly what recording engineers want who designed this headphone an unfiltered version of the track, so don't go tweaking stuff with the EQ. Second is the tried-and-trrue industry standard (in Japan ofc). Since the late ‘80s, this headphone has been the gold standard in Japanese recording studios. NHK (Japan’s national broadcaster) basically made them standard across the board too. You’ll find them in places like Avex, Sony Music Studios Tokyo, etc. It’s more of a cultural and professional legacy choice now tbh, but if you watch The First Take on Youtube or other Japanese Music Youtubers who does song covers, a lot of them uses this. Third is durability and serviceability and why I truly waited to write this review. This thing is built like a tank, no cap. And because they’re so widely used in japan, parts are easy to find in Japan--at least for me because I go to Japan every year. Anyway, I've only replaced the earpads so far, but the drivers and even cable is easily swappable and repairable. Last but not least is this is designed for studio monitoring, not casual listenin--they’re tuned for midrange clarity and vocal precision (which is great if you sing a lot like I do). It's especially helpful for mixing vocals (lead, backing, harmonies etc.) or tracking them. But that can come across as thin or boring compared to mainstream consumer headphones that a lot of the people are used to.

## Frequently Bought Together

- Sony MDR-CD900ST Studio Monitor Stereo Headphones (Japan Import)
- YAXI stPad2 LR(Red&Blue) Earpads for Sony MDR7506/900ST
- Sennheiser Genuine Adapter Cable Female 1/4" 6.3mm to Male 1/8" 3.5mm Plug for Headphones

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-21*