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An introduction to Sony MDR-EX800ST, based on information from the maker and distributors: what it does, how to use it and who it may suit. It is not scored.
What is MDR-EX800ST?
The MDR-EX800ST is an in-ear monitor developed for stage use. Sony says it was developed jointly with Sony Music Studios and is intended for performers who monitor their own sound.
It uses a large 16 mm dynamic driver (dome type, CCAW) which Sony says aims for a natural frequency response like that of studio monitor speakers. The frequency range is listed as 3 – 28,000 Hz.
As with the MDR-CD900ST monitor headphone used in recording work, Sony says the sound was adjusted by careful manual tuning to keep unit-to-unit variation small. It is a professional-use product and repairs are paid.
Flexible ear hangers can be shaped to the ear, and the maximum input is 500 mW. The cord detaches from the body, making it easier to replace after an accident such as a break.
Large 16 mm driver
It carries a large 16 mm dynamic driver for an in-ear model. Sony says resolution is good and it suits monitoring, which may help when checking your own playing.
Know-how from studio monitors
Sony says know-how from developing the MDR-CD900ST went into it. Manual tuning is said to limit variation between units, which may matter if several pairs are used by a band.
Flexible ear hangers
The hangers can be shaped to the ear to keep the fit stable even on a busy stage. The design suits cables routed over and behind the ear.
500 mW maximum input
The official maximum input is 500 mW, designed with live environments in mind. It is still wise to raise volume gradually when connecting.
Detachable cord
The cord is removed by turning a screw-type ring. Sony frames this as a precaution against breakage and notes routine detaching is not intended.
Y-type litz cord
The cord is about 1.6 m Y-type litz wire, 1.9 mm thick, with a gold-plated L-shaped stereo mini plug, suited to connecting to bodypacks or monitor systems.
Specifications
| Item | Details |
|---|---|
| Model | MDR-EX800ST |
| Type | Closed dynamic |
| Driver unit | 16 mm dome (CCAW) |
| Max input | 500 mW |
| Impedance | 16 ohm |
| Sensitivity | 108 dB/mW |
| Frequency response | 3 – 28,000 Hz |
| Cord | approx. 1.6 m litz wire, Y-type |
| Cord thickness | 1.9 mm |
| Plug | Gold-plated L-shaped stereo mini plug |
| Weight | approx. 7 g (without cord) |
What is included and system requirements
- Ear tips (S, M, L, two each)
- Carrying case
- Instruction manual
How to use it
- Choose an ear tip size (S, M or L) that fits your ear.
- Insert the blue-tipped cord end into the left (L) and the red into the right (R) earpiece.
- Tighten the ring until no gap remains.
- Connect the plug to a monitor system or headphone amplifier.
- Start with low volume and raise it gradually while playing.
- Shape the hangers to your ear and find a stable position.
- After use, wipe the cord with a dry cloth and put it in the case.
Live and stage
Its input tolerance and fit may help during active performances. Stage use in place of stage monitors is the official intent.
Rehearsals and studio practice
It may work as a monitor when checking your own playing in the studio.
Cueing during recording
In-ear types can block outside sound, which may suit checking cues.
Streaming and home-recording checks
Being small and portable, it may be convenient for checking sound anywhere.
Who it may suit
- Performers looking for an in-ear monitor for the stage
- People who want in-ear monitoring with a studio-monitor background
- People who value durability and easy cord replacement
- Bands who want to equip several members with matching units
Good to know before you buy
- The seller is Sony Music Solutions, it is intended for professional use, there is no free repair period, and all repairs are paid.
- Detach the cord only for replacement; routine detaching is not intended.
- When removing it from the plastic case, do not pull on the cord or hangers.
- Sound changes with ear-tip fit, so try several sizes.
How it differs from similar products
We do not pick a winner; the official figures are placed side by side.
Sony MDR-MV1
The MDR-EX800ST is a closed in-ear type with a 16 mm driver, 16 ohm and about 7 g; the MDR-MV1 is an open-back over-ear type with a 40 mm driver, 24 ohm and about 223 g.
Price
Please check the official page for the price.
See MDR-EX800ST on the product page
Sources: sony.jp (checked 2026-10-27)
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