Kora TA 240 Class AB Stereo Amplifier
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Kora TA 240 Class AB Stereo Amplifier
The Kora TA240 is a Class AB stereo amplifier delivering 2 × 120 W into 8 Ω and 2 × 200 W into 4 Ω, powered by Kora’s proprietary SquareTube® technology. Each channel features four triodes in combination with high-current power transistors, offering the natural smoothness of tubes with the unrestrained energy of solid-state amplification. This hybrid design eliminates phase shifts, ensures absolute stability, and delivers outstanding precision with natural dynamics, even on complex loads. Handcrafted in France, the TA240 embodies musicality, detail, and effortless power.
Square Tube Technology
In the TA240, Kora’s Square Tube Technology forms the foundation of its design. This unique circuit achieves the harmonic richness of tubes while retaining the control and efficiency of solid-state, giving the TA240 a character that feels effortless yet precise. It delivers clarity, texture, and dynamics well beyond what is expected at its price point, making it a standout in the power amplifier category.
Key Features
- SquareTube® operational amplifier with 4 triodes per channel for refined, phase-accurate musical reproduction.
- Hybrid tube-transistor architecture: tubes for warmth and smoothness, transistors for limitless current and control.
- High power output: 2 × 120 W into 8 Ω, 2 × 200 W into 4 Ω.
- No phase shifts or current limitation across the frequency spectrum.
- Robust dual power supply with dual 300 VA transformers and 2 × 60,000 μF filtering capacity.
- Flexible connectivity: balanced (XLR) and unbalanced (RCA) inputs with adjustable sensitivity (0.5-5 V).
- Precision engineering: multiple regulated supplies, isolated tube heating, and ultra-low internal impedance (< 0.08 Ω).
- Premium build: aluminum and steel chassis, mineral grey finish, designed and built in 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 × 350 mm |
| Chassis size only | 130 × 420 × 320 mm |
| Unit weight | 19 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 | 650 VA (2 × 200 W / 4 Ω) |
| Maximum power consumption | 350 W (2 × 120 W / 8 Ω) |
| Internal power supply | 2 × (± 50 V DC), dual supply |
| Power transformers | 2 × 300 VA |
| Auxiliary supplies | 5 DC/DC converters; 2 linear regulators |
| Main filtering | 2 × 60,000 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 × 120 W / 8 Ω, 2 × 200 W / 4 Ω |
| Output stage | 12 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 |
Does the Kora TA 240 have a volume control?
Does the Kora TA 240 have a volume control?
No. The TA series are power amplifiers and need a preamplifier, such as Kora's PR 140. The TA 240 has one RCA and one balanced XLR input, selected with the front button, and reaches full power from about 500mV. Get in touch with Mike to plan the pairing.
How do I match the TA 240 to my preamplifier?
How do I match the TA 240 to my preamplifier?
With its input attenuator, adjustable from 0 to -40dB in 1dB steps. Kora's rule is that the amplifier should reach full power when the preamplifier is at full volume, and says the setting can be made by ear. For example, with a preamplifier putting out 2 volts, set the TA 240 to -12dB. The remote does not change this setting.
TA 240 or TB 200 integrated?
TA 240 or TB 200 integrated?
Kora describes the TA 240 as the non-integrated version of the TB 200, giving 120 watts per channel into 8 ohms and 200 into 4, against the TB 200's 100 and 180. It adds a balanced XLR input, but has no volume control, so it needs a separate preamplifier.
Can I use the TA 240 to bi-amp with a Kora integrated?
Can I use the TA 240 to bi-amp with a Kora integrated?
Yes. Connect it to the pre-out of an integrated amplifier, which Kora says every model in its range has, and use the TA 240's attenuator to balance its level against the integrated. Kora says that level adjustment is imperative in this setup.
Will the TA 240 run on US power, and how is it built?
Will the TA 240 run on US power, and how is it built?
Kora builds for 230V as standard, with 117V available on request. Like all Kora amplifiers it uses the Square Tube circuit, four triodes per channel, with twelve ON Semi power transistors supplying current without amplifying the signal. It draws up to 350 watts at full power into 8 ohms, weighs 19kg and needs ventilation all around.
