Stax SR-L700 Mk2
The STAX SR-L700 Mk2 is a reference electrostatic headphone from the Lambda series with exceptional transparency, natural spatiality and impressive fine resolution.
Why we recommend it
The entry into the world of electrostatics as it should be: the speed and fine resolution Stax has stood for over decades, with a natural, organic tuning. Once you have heard music this way, you hear it differently. Requires a matching Stax energiser – we are happy to advise.
See all recommendations →Also available as a set
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Stax Starter Set: SR-L700 Mk2 + SRM-500T
together with Stax SRM-500T
€3,400.00€2,999.00 You save €401.00 View set →
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STAX SR-L700 Mk2
Reference Electrostatic Headphone from the Lambda Series
The STAX SR-L700 Mk2 is one of the most respected models in the modern Lambda lineup, combining the extraordinary speed of electrostatic drivers with a remarkably natural and organic sound signature. Compared to smaller Lambda models, the SR-L700 Mk2 delivers greater refinement, improved spatial realism and an even more effortless presentation.
At the heart of the SR-L700 Mk2 is its ultra-light electrostatic diaphragm, capable of reacting virtually instantaneously to incoming signals. The result is exceptional transparency and micro-detail retrieval, allowing vocals and instruments to sound open, lifelike and incredibly realistic.
The Mk2 revision introduces STAX’s detachable cable system borrowed from the company’s flagship models, while also improving fit stability and long-term comfort. Premium genuine sheepskin earpads further enhance both comfort and luxurious feel.
Sonically, the SR-L700 Mk2 combines outstanding resolution and openness with a smooth and highly musical presentation. Bass remains tight and controlled, while mids and treble offer remarkable airiness and natural timbre. This makes the SR-L700 Mk2 an excellent choice for demanding listeners seeking maximum detail without sacrificing musical engagement.
Like all STAX electrostatic headphones, the SR-L700 Mk2 requires a dedicated electrostatic amplifier or energizer with a PRO bias connection.
Technical Specifications
| Type | Electrostatic push-pull open-air headphone |
| Design | Open-back, over-ear |
| Frequency Response | 7 Hz – 41,000 Hz |
| Capacitance | 110 pF |
| Sensitivity | 101 dB / 100 V RMS / 1 kHz |
| Bias Voltage | 580 V DC (PRO Bias) |
| Earpads | Genuine sheepskin leather |
| Cable | Detachable OFC cable, 2.5 m |
| Weight | 371 g |
Measurements
Frequency response
What does this mean?
The line marked as target is something you could call the “ideal” curve: a target response derived from research by the Harman group, exploring what kind of headphone tuning tends to be preferred by a broad range of listeners – regardless of age or demographics. This is often referred to as the Harman Target.
From left to right you see sub-bass, bass, mids, and then the curve tilts upward where treble begins. That part of the spectrum is naturally amplified by the shape of the human ear.
Sub-bass sits far below the target – common for open headphones, the Harman target includes a strong bass shelf, the bass follows the target curve. The lower mids are neutral, the presence region around 3 kHz sits slightly below the target. The treble follows the target, and the range above 10 kHz stays on the curve. Left and right channels track each other closely, a sign of careful driver matching.
Harman Research: The Perception and Measurement of Headphone Sound Quality – What Do Listeners Prefer?
Data sheet
- Design
- Open
- Driver
- Electrostatic
- Amplification needs
- Electrostatic amplifier required
- Headphone connector
- Stax Pro-Bias (5-Pin)
- Weight
- 371 g
