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POWERFUL SOUND WITH UTMOST DELICACY
The rationale in the development of the new SR-007 Earspeaker was to provide
deep powerful sound previously unobtainable in Earspeakers. STAX engineers
developed a unique new electrode structure. Visible through the outer case, gold
plated on the outer edge this new electrode has less holes than conventional
STAX Earspeakers and thus provides an increased diaphragm vibration area
allowing for rich and powerful sound yet retaining all the delicacy STAX is
famous for.
RIGID METAL HOUSING
To maintain clear distortion-free sound it is most important that nothing
other than the diaphragm should vibrate. Within the STAX SR-007 the sound
element is encased in a thick insulated resin case firmly fixed to the rigid
body. The results are nothing short of spectacular.
NEW FULLY ADJUSTABLE EARPADS
Utmost comfort for maximum enjoyment of your STAX SR-007 is provided with
earpads that are fully adjustable to the shape of your head.
Specification
Frequency Response : DC~70KHz/+0, -1.5dB (100Vr.m.s. Output)
Gain : 60dB (Input 100mV Output 100V)
Harmonic Distortion : Less than 0.01% (1kHz, 100Vr.m.s. Output)
Inputs: RCA×2, XLR1 (Balanced Input)
Maximum Output Voltage : 340Vr.m.s. (1kHz)
Earspeaker Output Bias Voltage : 230V×1, 580V×2)
AC Power Voltage : 220-240V (50~60Hz)
Voltage is adjusted for your area
Power Consumption : 55W
Operating Temperature Range 0~35 Degree
Dimensions : (W)195mm×(H)103mm×(D)420mm Including Knob (20mm) & RCA
jacks(10mm)
Weight : 4.7Kg
Vacuum tubes employed : 6FQ7/6CG7 4 PCS
Specifications are subject to change without
notice.
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| This unit provides a combination dual FET first stage and twin triode (6FQ7/6CG7) second stage tube amplifiers for each channel for driving Stax earspeakers including the SR-007s. It has two sets of line level inputs, one of which is single-ended (RCA) only, while the other can be switched between single-ended and balanced (XLR) connectors. The amplifier design is balanced, so using corresponding sources and interconnects provides for a cleaner signal path. One oddity is that the XLR connector polarity has the non-inverting signal on pin 3 and inverting on pin 2, opposite of what's found on most American XLR connectors. I tried using phase inversion feature on the No. 36, but heard little, if any, difference. The SRM-007t has three jacks for connection to Stax earspeakers: 2 "Pro" (580 V bias) and 1 "Normal" (230 V bias). The SR-007 is a "Pro" earspeaker. There is also a quadrupled double-spindle volume control for true balanced attenuation into the first stage amps. The unit takes about 15-30 minutes to reach optimum operating temperature, consumes 55 W, is warm to the touch, and has no fans, so adaquate clearance for cooling is essential. The whole unit weighs over 10 pounds (4.7 kg), and measures 7.7 in. (195 mm) wide, 4 in. (103 mm) high, and 16.5 in. (420 mm) deep. Given its heat dissapation requirements and size/shape, the unit is difficult to place efficiently. It's too deep to stack on anything but a shelf and may present problems in enclosed racks. I ended-up placing mine beside the P300 on a seperate open shelf.
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