Kora CSA 1200 Class A Mono Amplifier
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Kora CSA 1200 Class A Mono Amplifier
The Kora CSA 1200 is a powerhouse mono amplifier designed for true Class A performance. Combining the innovative SquareTube® technology with a robust, highly filtered linear power supply, the CSA 1200 delivers uncompromising power and musical precision. Its architecture ensures effortless handling of demanding loudspeakers while maintaining natural tonal balance and refinement. With intelligent current and ON/OFF management, the CSA 1200 operates efficiently without sacrificing its Class A purity.
Square Tube Technology
In the CSA1200, Kora’s Square Tube Technology is pushed to its fullest expression. The hybrid stage uses tubes to impart harmonic richness and dimensionality, while the high-current solid-state section delivers effortless control over even the most demanding loudspeakers. The result is an amplifier with immense authority that still preserves the delicacy and nuance of live music. For those seeking both scale and soul, the CSA1200 shows how far this unique design can go. Learn more about Square Tube Technology.
Key Features
- True Class A Power – 200 W into 8 Ω, delivering pure, distortion-free amplification with exceptional dynamics.
- SquareTube® Technology – Preserves musical detail and phase accuracy, ensuring natural and lifelike reproduction.
- Intelligent Current Management – Automatically adapts between high and low current modes depending on speaker demand, optimizing energy usage.
- Signal-Triggered ON/OFF – Powers on when a signal is present and switches off when idle, offering convenience and efficiency.
- Massive Filtering Capacity – Equipped with 560,000 µF of filtering, guaranteeing a stable and noise-free power supply for uncompromised performance.
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 | |
|---|---|
| Dimensions | 420 × 660 × 260 mm |
| Weight | 45 kg |
| Materials | Aluminium and steel |
| Finish | Mineral grey |
| Accessories | Power cord, instructions |
| Electronic Features | |
|---|---|
| Output Power | 1 × 200 W / 8 Ω (pure Class A) |
| Technology | SquareTube® + pure Class A design |
| Filtering | 560,000 µF |
| Inputs | 1 × RCA, 1 × XLR |
| ON/OFF Management | Automatic signal-detection (on when signal present, off when idle) |
| Current Management | Adaptive switching (high/low current as needed) |
How powerful is the CSA 1200?
How powerful is the CSA 1200?
200 watts into 8 ohms from a single channel, the most power per channel in Kora's class A range, with 560,000 microfarads of filtering. Kora runs it in pure class A into 8 ohms; into 4 or 6-ohm speakers it switches to class AB so it can always deliver the right amplification. As a mono amplifier, each CSA 1200 drives one speaker. Get in touch with Mike to plan a system around it.
CSA 1200 monos or the CSA 2120 stereo?
CSA 1200 monos or the CSA 2120 stereo?
Both use Kora's large chassis and 560,000 microfarads of filtering. The CSA 2120 splits it across two channels of 120 watts; the CSA 1200 devotes it to one channel of 200 watts.
How do I set up a pair of CSA 1200s?
How do I set up a pair of CSA 1200s?
Connect each to your preamplifier by RCA or balanced XLR, selected on the rear panel. In mono use, Kora says the gain control is there to match the amplifier to your preamplifier for comfortable volume control, so set both the same. The phase switch is not needed for mono listening, only for multi-amplified systems.
What do the power and current switches do?
What do the power and current switches do?
Kora recommends Auto for both. Power on Auto wakes the amplifier when a signal arrives, which is handy when it sits near the speakers, and returns it to standby after a minute of silence. Current on Auto runs at half current until the music needs more, then switches to full current inaudibly.
What should I know about installing the CSA 1200?
What should I know about installing the CSA 1200?
It weighs 45kg and measures 420 x 660 x 260mm. It warms up considerably at high current, so it needs air around, above and below. Its capacitors charge slowly for a few minutes after power-up, which Kora says takes longer on US mains, and inrush peaks of 10 to 20 amps are possible. Use 4mm banana plugs and heavy speaker cable.
