Stax
STAX SRM-T8000 Hybrid Amp
Best flagship amplifier for serious electrostatic headphone enthusiasts.
The STAX SRM-T8000 is a flagship electrostatic headphone amplifier that masterfully blends hybrid technology. It features two 6922 vacuum tubes in its input stage, which then drive a Class-A solid-state output stage. To ensure pristine sound quality, the vacuum tubes are housed in a separate, vibration-dampened and shielded section, effectively minimizing noise and interference. This amplifier is constructed with high-capacity toroidal transformers and premium components, delivering an exceptionally refined audio experience for electrostatic headphones.
$5481.00
More SRM Options
Owner Satisfaction
4.7
/ 5
Category Rank
52
/ 731
#52 in Headphone Amplifiers
Price vs Category Average
+292%
Above average
Color
Silver, Black
/ Silver, Black
Who it's for
- Audiophiles seeking absolute transparency and microscopic musical detail
- Listeners wanting tube warmth paired with solid-state precision
- Collectors investing in long-term, premium flagship audio gear
Who should skip it
- Budget-conscious buyers seeking high-end performance without luxury pricing
- Owners of dynamic headphones needing a versatile, universal amplifier
- Users preferring a low-maintenance, set-and-forget audio experience
Performance breakdown
Sonic Transparency
Hybrid architecture delivers unparalleled clarity and nuanced electrostatic detail.
Noise Floor Control
Vibration-dampened tube housing ensures a dead-silent background for critical listening.
Build Integrity
Heavy-duty construction and premium components reflect flagship-level engineering standards.
System Versatility
Dual inputs and preamp bypass offer seamless integration into high-end setups.
Power Delivery
Toroidal transformers provide effortless headroom for demanding electrostatic drivers.
Ergonomic Utility
Dual output ports simplify multi-headphone comparisons for serious enthusiasts.
Key Specs
Color
Silver, Black
Frequency response
1～115kHz per channel
THD
<0.01% @1kHz per channel
Gain
60dB
Rated input level
100mV/100V
Maximum output voltage
470V r.m.s./1kHz
Input impedance
Unbalanced 50kΩ/ Balanced: 50kΩx2
Analog Input
RCA x2, XLR x1
Features
- Hybrid amplifier technology combining vacuum tubes and solid-state output
- Vibration-proof damper and shield cover for vacuum tubes to eliminate noise
- High-capacity large toroidal transformers for refined sound
- Selected high-quality parts for superior audio performance
- Supports external preamp use via volume control bypass
- Dual Stax PRO bias outputs for connecting multiple headphones
- Dual analog input options (RCA and XLR)
What customers say
Customers consistently praise the STAX SRM T8000 Hybrid Amp for its exceptional sound quality, describing it as incredibly detailed, transparent, and dynamic. Many highlight its ability to elevate the listening experience, revealing nuances in music that were previously unheard. The amplifier's robust build quality also receives high marks, with users appreciating its premium materials and solid construction, reflecting its high end positioning. While a significant investment, the consensus points to a truly reference level performance that justifies its cost for serious audiophiles.
Know before you buy
The hybrid design combines the warmth and harmonic richness of 6922 vacuum tubes in the input stage with the speed, precision, and power of a Class-A solid-state output stage. This approach provides a refined, detailed sound profile that maintains the signature musicality of tubes while offering the control necessary for high-end electrostatic headphones.
Yes, the SRM-T8000 features a volume control bypass function. This allows you to integrate the amplifier into a larger system and use an external preamp to control the volume level.
The vacuum tubes are housed in a dedicated, vibration-dampened, and shielded section separate from the rest of the circuitry. This physical isolation minimizes microphonic noise and external interference, ensuring a cleaner signal path.
Yes, the amplifier is equipped with two Stax PRO bias outputs. You can connect two pairs of Stax electrostatic headphones simultaneously for shared listening.
Yes, the unit includes one XLR balanced input in addition to two RCA unbalanced inputs, providing flexibility for different source components.
Like all tube-based equipment, the 6922 tubes will eventually require replacement depending on your usage hours. Because they are housed in a specialized, vibration-dampened section, ensure you follow the manufacturer's guidelines when accessing or replacing them to maintain the integrity of the shielding.
Still have a question?
Ask Hayley anything about this product before you decide.
Ready to buy?
$5481