VK-90T vs EAR 509
The 509's power @ 8ω is 100W against the VK-90T's 75W, its thd 0.500% against 3.000%, and its input impedance 25000Ω against 200000Ω. Both share class (Tube).
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Estimated price (community-sourced)
Around — community and catalog average, updates slowly
The Balanced Audio Technology VK-90t is a high-end, fully balanced stereo tube power amplifier that can also be configured as a monoblock. Its symmetrical single-ended bridge topology uses an all-triode signal path, no global negative feedback, active current sources, and a high-current output stage. Features include intelligent automatic bias with LED indicators, fuse-less protection, a 25th-anniversary aluminum chassis, silver-gold oil capacitors, and upgraded internal signal wiring. The amplifier is designed for demanding loudspeakers and may be converted from stereo to mono operation. Current manufacturer and dealer listings indicate that the VK-90t remains a listed product, although some third-party listings describe examples as discontinued or closeout stock; therefore, its exact production status may vary by market and inventory.
Amplification power output and characteristics
Analog signal output specifications
Input and output connections
Size, weight, and appearance
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions
The closest alternatives on specs, description and the systems they turn up in, with the specs they share set side by side.
The 509's power @ 8ω is 100W against the VK-90T's 75W, its thd 0.500% against 3.000%, and its input impedance 25000Ω against 200000Ω. Both share class (Tube).
The Atlas Stereo Eclipse's power @ 8ω is 200W against the VK-90T's 75W, its thd 1.000% against 3.000%, and its input impedance 470000Ω against 200000Ω. Both share class (Tube).
The Reference 80S's power @ 8ω is 70W against the VK-90T's 75W, its thd 1.000% against 3.000%, and its width 470 mm against 431.8 mm. Both share class (Tube).
The MC2301's power @ 8ω is 300W against the VK-90T's 75W, its thd 0.500% against 3.000%, and its weight 52.6 kg (116 lbs) against 39.92 kg (88 lbs). Both share class (Tube).
Audio Research Corporation Reference 250 SE Mono
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