Kora TA 480 Class AB Stereo Amplifier

$12,199.39 $19,999.00

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Kora TA 480 is a high-definition Class AB stereo power amplifier that pairs Kora’s proprietary SquareTube® operational amplifier with a powerful transistor output stage. Four triodes per channel deliver tube-like smoothness and rich detail, while complementary high-linearity power transistors supply the current required by demanding speakers. The hybrid design provides phase-accurate reproduction, limitless dynamics, and exceptional stability with complex loads, delivering both musical refinement and commanding power. This is the non-integrated version of the TB400.

Square Tube Technology

The TA480 showcases Kora’s innovative Square Tube Technology, a design that moves beyond traditional transistors to create a circuit that behaves like tubes without their limitations. In this power amplifier, Square Tube delivers lifelike dynamics, tonal warmth, and speed that bring music into sharper focus. The result is a listening experience with both intimacy and scale: the qualities that define the Kora sound.

Key Features

SquareTube® operational amplifier with four triodes per channel for exceptional musicality and phase accuracy.
Hybrid tube-transistor architecture: tubes for smoothness and detail, transistors for high current and stability.
High power delivery for larger or harder-to-drive speakers than the TA 240.
Robust power supply: dual 500 VA transformers, dual ±65 V DC rails and 2 × 100,000 µF filtering.
Excellent load stability: no phase shifts at frequency extremes and no current limitation.
Precision engineering: multiple regulated supplies, isolated tube heaters and extensive filtering for ultra-low noise.
Flexible inputs: balanced and unbalanced inputs with adjustable sensitivity (0.5-5 V).
Handcrafted design: aluminum & steel chassis, mineral grey finish, Toulouse, France.

The Listening Room Difference

We’re a third-generation family business with a brick-and-mortar showroom in Chestertown, Maryland, and a reputation built on trust, not hype. Whether you’re visiting in person or ordering online, we bring decades of experience, personalized service, and honest guidance to every interaction. We don’t just ship boxes. We help build systems, answer your questions like real humans, and make sure every detail of your setup is right, from the cables to the final connection. Our passion is helping you get the most out of your gear, with support that lasts well beyond the sale.

Specifications

General Characteristics
Overall dimension	148 × 420 × 450 mm
Chassis size only	130 × 420 × 420 mm
Unit weight	27 kg
Materials	Aluminum and steel
Finish	Mineral grey
Accessories	Remote control, power cord, instructions
Manufacturer’s warranty	5 years
Construction & design	Toulouse, Occitania region, France
Electronic Features
Power supply	IEC 230 V AC socket +7% / -10% (117 V AC on request)
Maximum power input	1050 VA (2 × 400 W / 4 Ω)
Maximum power consumption	650 W (2 × 240 W / 8 Ω)
Internal power supply	2 × (± 65 V DC), dual supply
Power transformers	2 × 500 VA
Auxiliary supplies	5 DC/DC converters; 2 linear regulators
Main filtering	2 × 100,000 µF
High voltages	+300 V stabilised / 200 V stabilised
Input tube heating	2 × 12 V DC (regulated & grounded)
Output tube heating	2 × 12 V DC (isolated regulated)
Output power	2 × 200 W / 8 Ω, 2 × 360 W / 4 Ω
Output stage	20 complementary highly linear power transistors (ON SEMI, 225 W / 15 A each)
Inputs	1 × RCA asymmetrical (10 kΩ), 1 × balanced (2 × XLR, 2 × 20 kΩ). Sensitivity adjustable 0.5-5 V
Bandwidth	20 Hz to 20 kHz (±1 dB)
Internal impedance (output)	< 0.08 Ω

Made with care

Great value

Elegant design

Quality materials

This product is crafted with quality materials to ensure durability and performance. Designed with your convenience in mind, it seamlessly fits into your everyday life.

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We are committed to ensuring a positive shopping experience for all our customers. If for any reason you wish to return an item, we invite you to reach out to our team for assistance, and we will evaluate every return request with care and consideration.