Proven, improved

STAX has never chased short-lived trends, and with the replacement of the STAX SRM-007t II and SRM-727 II driver amplifiers, which have been successful since 2006, STAX remains true to itself and this motto. The two new driver amplifiers, SRM-700T and SRM-700S, benefit from technologies derived from the flagship SRM-T8000: In the new vacuum tube driver amplifier SRM-700T, which functions without an output transformer (OTL), STAX utilizes two 6SN7 dual triodes, non-inductive winding resistors from Vishay Co., and custom-made low-noise dual FETs in the first amplifier stage, which are also featured in its transistor sibling, the STAX SRM-700S. In the latter, STAX has implemented J-FETs in the second amplifier stage for the first time ever in a STAX driver amplifier. J-FETs are particularly well-suited for low-noise amplification of even the most power-hungry transducers.

In this way, STAX catapults the performance of both models far beyond their price range. STAX has also modernized the aesthetics of the amplifiers, tailoring an extremely elegant housing for them.

The SRM-700S is the sonic alternative to the STAX SRM-700T at the same extremely high level of quality. Compared to the former, it is slightly less colorful and detailed, but offers more control and tighter bass.

Simultaneous operation of two STAX headphones is possible on the STAX SRM-700S.

Driver amplifiers for STAX electrostatic headphones can be operated via the recording output (Tape/Record Out or Fixed Out) or any other fixed-level output (Pre Out/Fixed Out) of a preamplifier or integrated amplifier. Naturally, a CD player or a turntable with a separate phono preamplifier can also serve directly as a signal source. The music signal present at the driver amplifier's input can be looped through, allowing you to supply another device with music signals. If a source device is to be connected digitally, a separate D/A converter is required. Connection can be made either unbalanced or balanced.

Finishes

Brushed aluminum front in black / black housing or brushed aluminum front in silver / gray-anthracite housing

Technology for superior sound

Signal-balanced circuit design

Volume/balance control via a quadruple potentiometer encapsulated for electrical shielding

One high-level input, selectable between unbalanced (1 pair of RCA jacks) or balanced (1 pair of 3-pin XLR jacks). Switching is performed on the front panel.

High-level output: 1 pair of RCA jacks

Frequency response:
0Hz - 100kHz (with a Stax SR-009S)

Gain:
60dB

Total harmonic distortion:
0.01% (at 100Vrms output voltage and 1kHz)

Input impedance unbalanced:
50kOhm

Input impedance balanced:
2x 50kOhm

Maximum output voltage:
450Vrms (at 1kHz)

Operating voltage headphones:
580V

Power consumption:
46W

Dimensions W x H x D:
240 x 103 x 393mm (with knob and sockets)

Weight:
6.3kg

Herstellerangaben:

STAX International
Room 2101, 21st floor, The L. Plaza,
Queen's Road,
367-375 , Hong Kong
China
enquiry@staxheadphones.com

Verantwortliche Person:

ATR – Audio Trade HiFi – Sales Company LLC
Wallufer Strasse 2
65343 , Eltville am Rhein
Germany
stax@audiotra.de