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STAX SRM-270S Electrostatic Driver Unit front panel with level control knob and pro ear speaker connector on white background

STAX SRM-270S Electrostatic Driver Unit

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The STAX SRM-270S is the newest earspeaker driver unit from the leader in electrostatic earpeakers and the easiest way for audiophiles to experience pure and immersive sound.

Get the STAX SR-X1000 set and save on SRM-270S!

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Enhanced Heat Dissipation

A 3mm-thick front aluminum panel and a larger aluminium extrusion case for effective heat management.

High-Grade Connectivity

RCA pin jacks and a 3mm-thick front aluminum panel ensure a pristine connection.

Low Noise FET

Selected for the First Stage amplifier, paired with a refined emitter follower circuit in the Output Stage for unparalleled clarity.

Compact Chassis

Easy for placement, transportability and aesthetic appeal.

Specifications

● Frequency Response: DC to 35,000Hz/+0, -3dB
● Harmonic Distortion: 0.01% or less/1kHz 100V r.m.s.
● Amplification: 58dB (800 times)
● Maximum Output Voltage: 280V r.m.s./1kHz
● Input Impedance: 25kΩ
● Input Terminals: RCA x 1
● Output Terminals: Parallel Out x 1
● Bias voltage: 580V, DC
● Power Supply: AC adaptor included
● External Dimensions:132(W)×38(H)×153(D)mm (excluding protruding parts)
● Weight: 540g

Overall rating: 5.0 / 5 from 5 reviews.

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Reviews

Perfect compact unit

"Drives my SR-L300 Limited with no issues. Desk footprint is also very small which I need for my setup."

Dallas R. (5/5)

Simply Incredible

"After 20 years of being an audiophile I finally invested in some Stax Electrostatic Head-Speakers, it was completely worth it. Ask the hallmarks of ES headphones are present- pinpoint accuracy, highly detailed and resolving, open yet natural soundstage, bright but not harsh tuning. The low end is s lacking as is expected but EQ fixed that. The transaction was great."

Fernando P. (5/5)

Great small-footprint energizer for L500

"For me and my L500 MK2, it is good for my simple ears. My other energizer is older Stax, the SRM-1 MK2, but I really needed a smaller footprint for my desk, and this compact unit fills the need precisely."

Tim G. (5/5)

solid, Jackson

"My 80 year old ears aren't really up to making the kind of sonic distinctions that would be very helpful, so I'll just say that the unit is very solidly-built, and works fine with the SR-L300's. And my experience with HeadAmp was 100% positive"

Hugh R. (5/5)

Awesome little amp but not for my SR009.

"A great starter amp for my Lambda and my Koss headphones but not suitable for harder to drive Stats like the 009 and Voce that I have. Tonally neutral but lack power to driver my 009. Staging is a bit narrow as well and this from an upgraded iFi Elite power supply that I have. The experience with buying from Headamp is nothing short of amazing. Shipment was fast and prompt and price is great as well."

Purk Y. (5/5)

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