Proven, improved

STAX has never followed short-lived trends, and with the replacement of the successful STAX SRM-007t II and SRM-727 II driver amplifiers, which have been on the market since 2006, STAX remains true to itself and this motto. Both new driver amplifiers, the SRM-700T and SRM-700S, benefit from technologies found in the flagship SRM-T8000: In the new vacuum tube driver amplifier SRM-700T, which features an output transformerless (OTL) design, STAX utilizes two 6SN7 double triodes and non-inductive winding resistors from Vishay Co., as well as custom low-noise dual FETs in the first amplifier stage, which are also used in its transistor-based 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 amplifiers visually, tailoring an extremely elegant housing for them.

The STAX SRM-700T is the vacuum-tube-equipped alternative to the STAX SRM-700S and performs at the same extremely high level of quality. By comparison, the SRM-700T shines with a more colorful, finer-resolved sound image with powerful bass.

The STAX SRM-700T allows for the simultaneous operation of two STAX headphones.

Driver amplifiers for electrostatic headphones from STAX 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. Of course, a CD player or a record player with a separate phono preamplifier can also serve directly as a signal source. The music signal present at the input of the driver amplifier 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.

Versions

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

Technology for great sound

Tube configuration:
2x 6SN7 double triode

Output stage without output transformer (OTL)

Signal-symmetrical circuit design

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

One high-level input, optionally unbalanced (1 pair of RCA jacks) or balanced (1 pair of 3-pin XLR jacks). Switching is performed via a switch on the connection panel

One unbalanced high-level output with RCA jacks

Frequency response:
1Hz - 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:
340Vrms (at 1kHz)

Operating voltage headphones:
580V

Power consumption:
54W

Dimensions W x H x D:
240 x 103 x 393mm (incl. knob and jacks)

Weight:
5.7kg

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