Teres vs Symphonic Line Kraft 250
The Kraft 250's power @ 4ω is 400W against the Teres's 350W, its output impedance 1Ω against 8Ω, and its class AB against Hybrid. Both share power @ 8ω (250W).
AI-generated product photo — not official manufacturer imagery.
Teres
Thrax AudioAmplifiersTube AmplifiersPower Amplifiers
Estimated price (community-sourced)
$15,670.30 - $33,778.30
Around — community and catalog average, updates slowly
About the Teres
The Thrax Audio Teres (MK2) is a high-end hybrid power amplifier featuring a single-ended tube input stage with a long-life C3g vacuum tube loaded by a custom phase-splitting transformer, driving two separate single-ended JFET/MOSFET cascode output stages. It delivers tube-like tone, clarity, and second harmonic content with substantial power for inefficient speakers, using zero feedback, solar cell bias for the floating output stage, silicon carbide rectifiers, shunt-regulated power supply for the tube, and microprocessor control. Available in mono and stereo versions, it maintains tonal stability across power levels due to interstage transformer isolation. Launched around 2015-2016, with MK2 updates; currently listed on the manufacturer's site.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 250W @ 8Ω
- Power @ 4Ω
- 350W @ 4Ω
- Amplifier Class
- hybrid
- Minimum Impedance
- 4Ω
Analog Output
Analog signal output specifications
- Output Impedance
- 8Ω
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
- Analog Inputs
- RCA, XLR
- Analog Outputs
- speaker posts
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 340 × 230 × 400 mm (W × H × D)
- Weight
- 25 kg (55 lbs)
- Available Colors
- black, silver anodized aluminum
Key Specifications
Power: 250W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions