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The CTA407 will automatically adjust for any tube in the 6550/KT88/KT120/KT150 family. The CTA407 servo system is not only a lossless automatization of the bias adjustment – it is an integrated part of the CTA407 internal high pass filtering, closely matched to the transfer function of the amplifying circuitry and a vast improvement to the overall fidelity of the amplifier.
The CTA407... [more]
| Integrated valve amplifier |  |
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darTZeel is proud to introduce the new CTH-8550 full featured integrated amplifier. This new product combines in one casing most of the good things musical lovers found in our flagship NHB series.
The CTH-8550 features newly designed power output stages which include on board regulated power supplies for a very compact global layout. This new circuit brings outstanding transparency, speed,... [more]
| Integrated solid state amplifier |  |
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Security and customization
Each CTH-8550 is delivered with its own dedicated USB key which contains all customer information: owners name, serial number, firmware versionVoltage range settings. The provided USB key will also allow for eventually updating either CTH-8550s firmware or software in the future.Casing
Entirely designed with a dedicated 3D-CAD software, the new cabinet is m... [more]
| Integrated solid state amplifier | |
 | | Stereo valve amplifier |  |
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Copland DA215 is a high quality D/A converter with DSD capabilities using the ES9018 Reference 32-bit DAC in
quad-mono configuration, 8 mono to 2 stereo configuration, four D/A converters per channel.
It incorporates an asynchronous USB input, tree S/PDIF digital inputs, an analog input, two analogue outputs
(fixed and variable) and a complete valve pre-amplifier with analog volume ... [more]
| Other | |
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The DAC9 digital-to-analog converter decodes most current formats with state-of-the-art vacuum tube technology. Five digital connections - USB, RCA, BNC, AES/EBU, and Toslink - provide connectivity to all of your digital sources. Quad DAC architecture provides a balanced digital signal, wide dynamic range, and decoding resolutions from red book CD up to 384 kHz and native DSD sampling rates. A ... [more]
| D/A Converter | |
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This integrated preamplifier produces a visual effect of abundance through its colours, forms and the optimal use of space.
... [more]
| Stereo valve phono preamplifier |  |
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Circuitry Highlights Patent pending Krell iBias Class A technology allows our latest amplifiers to run in full Class A mode to full power while minimizing heat generation. All signal gain is realized in the current domain using discrete, proprietary, multiple-output current mirrors with extraordinary open loop linearity. There are no generic integrated circuits or op amps used anywhere. Current... [more]
| Stereo solid state amplifier |  |
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Circuitry Highlights Patent pending Krell iBias Class A technology allows our latest amplifiers to run in full Class A mode to full power while minimizing heat generation. All signal gain is realized in the current domain using discrete, proprietary, multiple-output current mirrors with extraordinary open loop linearity. There are no generic integrated circuits or op amps used anywhere. Current... [more]
| Stereo solid state amplifier | |
 | | Mono valve amplifier |  |
