STAX SRM-727MK2 Energiser

Description

SRM-727MK2

For the first time ever in a STAX driver unit, the SRM-727MK2 uses a semiconductor output drive stage and non-feedback output stage. A pure balanced DC amplifier configuration is used for the large current emitter follower Class A output stage.

This makes it possible to achieve a much more vivid and dynamic sound quality, with frequency response raised to 115 kHz (up from 100 kHz).

A high level of sound purity is delivered through the simple two-stage amplification circuit with low-noise FET input stage. A significant increase in dynamic range is evident, especially in the upper frequencies.

This is a brand-new headphone driver unit that opens up new vistas for the sense of mass and textural expression, supported by a virtually unparalleled degree of resolution, a natural sense of openness, and a solid, expressive power section.

SRM-727MK2 also features a newly-designed front panel, with rounded corners in brushed aluminium finish, and a Bypass Mode that enables direct connection to preamplifiers, passive volume controls or integrated amplifiers and receivers with pre-out. This is a direct switch that avoids duplication of volume controls.

Features

• Drives all STAX electrostatic earspeakers (headphones).
• Redesigned front panel.
• Class A, non-feedback output stage amplifier.
• Pure balanced system.
• Bypass connection.

Specifications

• Type: All-stage semiconductors, low noise dual FET input, non-NFB Class A operation, pure balance DC amplifier configuration earspeaker driver unit
• Frequency Response: DC to 115 kHz (if used with SR-007 or SR-404)
• High Harmonic Distortion: Max. 0.01 % (with 100 to 10 kHz, 100 V RMS)
• Gain: 54 dB (x500)
• Input Terminal: RCA or XLR with 1 x RCA parallel out
• Rated Input Level: 200 mV / 100 V Outputs
• Input Impedance: 50 Kohm (RCA), 50 kohm x2 (XLR)
• Max. Output Voltage: 450 V RMS (1 kHz)
• Standard Bias Voltage: PRO 580 V x 2
• Power Voltage Frequency: 117 V (50 Hz / 60 Hz)
• Power Consumption: 46 W
• Temperature & Humidity: 0 to 35°C / 90% max. without condensation
• Dimensions: 7.7 (W) x 4.1 (H) x 16.5 (D) in
• Weight: 11.5 lbs
• Warranty: 1-year U.S. limited warranty

Full STAX Range Available

Unilet Sound & Vision are official retail partners for STAX Audio, providing sales, advice and assistance on their entire range of high-quality audio products. Please do get in touch if you would like a demonstration or wish to purchase.

More information

• SRM-727MK2, by STAX Audio
• More about STAX

Additional information

Brand

STAX

Founded in 1938, STAX brought the world's first electrostatic headphone to market in 1960. Today they continue their long tradition by offering the finest audio products for both professional and audiophile applications.

All STAX headphones are referred to as "earspeakers" - the company states that such ultra-high fidelity devices can only be compared with the best cost-no-object loudspeakers, not other headphones. Their unique amplifiers, earspeakers and drivers are highly sought-after products, and extremely well considered by aficionados in the audio industry.

Unilet Sound & Vision are one of the oldest STAX dealers in the UK, and one of the very few official outlets stocking their products. Do get in touch with us if you would like to audition the range, or need advice or assistance with choosing the right system for your needs.