2-channel amplifier (with 1x ANALOG_BUF)
1 en stock
Prix catalogue
CHF 30'100.00


L'Amplificateur de Puissance CH Precision A1 est un instrument de musique extraordinaire. Il est configurable et adaptable à l'infini. En mode MONO bridged il est capable de fournir 350 Watts en continu sous 8 Ohms! Tous les fabuleux instruments de musique CH Precision sont développés et fabriqués en +Suisse+.

As the driving force behind recreating the full musical experience, the task of the power amplifier may seem desperately simple but is indeed highly complex. Achieving our simple goal of ”add nothing, remove nothing” to preserve the full musical emotion has resulted in a ground breaking new amplifier topology. Housed in a chassis similar to the C1 and D1, the A1 sets new standards in terms of performance, flexibility of adjustments, industrial design and pure enjoyment.

The A1 is based on a novel proprietary amplifier architecture which optimizes the critical matching of the amplifier with the speaker. It can be operated either as a stereo amplifier (2x 100WRMS under 8Ω), as a monaural bi-amping amplifier (2x 100WRMS under 8Ω) or as a bridged amplifier (1x 350WRMS under 8Ω).

A sophisticated mechanical chassis design and full USB based firmware update support contribute to make the A1 a real long term enjoyment.


Analog inputs:
  • Inputs type Balanced (XLR), one connector per board
  • Single-Ended (RCA & BNC), one connector per board
  • Input impedance Balanced: 94kΩ
  • Single-Ended: 47kΩ or 300Ω
  • Input stage JFET input stage
  • Ultra-low noise, discrete fully differential stage
  • 24dB range adjustable gain in 0.5dB steps
  • Amplification stage Ultra-low noise full discrete class AB design
  • 5 pairs of complementary output transistors
  • Bias Patent-pending bias circuitry for constant bias operation
  • Feedback User-adjustable local vs. global feedback ratio, from 0% to 100% with 20% steps
  • Bandwidth DC to 450kHz (-3dB) at 1W into an 8Ω resistive load
  • Signal to Noise Ratio Better than 115dB in stereo and bi-amp modes
  • Better than 118dB in bridge mode
  • Total Harmonic Distortion + Noise Less than 0.1% with 0% global feedback
  • Less than 0.01% with 100% global feedback
Analog outputs:
  • Binding posts Two pairs of Argento binding posts for loudspeakers connection
  • Monitoring Non-intrusive DSP-based protection of the amplifier
  • Instantaneous voltage & current values are permanently monitored for each channel
  • Protections Short-circuit protected
  • Disconnected loudspeaker detected
  • Over-temperature of the heatsink, fans are activated if needed
  • Over-temperature of the output transistors
  • Power supply:
  • Transformer 1'200VA single transformer, oversized for low-noise operation
  • Power capacitors  2x 47'000uF/63V 4-poles capacitors
  • Regulators Non-regulated symetrical power supply for the power stages
  • Eight local regulation stages for input/driver stages
  • Seven local regulation stages for the logic/display
  • Display 480x272 pixels, 24bits color, AMOLED
  • Mains operation Selectable 100V, 115, 230V AC, 47-63Hz
  • Power supply consumption <1W (standby), 1200W max in operation
  • Dimensions/Weight 440 x 440 x 120mm (W x D x H), 43kg
  • Remote control Ethernet interface, TCP/IP control
nos conseillers
de 8H à 17H
021 925 30 00
nos conseillers
de 8H à 17H
021 925 30 00