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wolfz

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About wolfz

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  1. Extra Info: A few tiny marks (edge), not easy to see, no original box. Normal retail price new is $800. A very good sounding amp with two crossfeed stages and two gain settings. Tech Data copied from Meyer: Sure, from the outside the CLASSIC looks very modest and plain. However, technically and sonically this is the best and most advanced amplifier that we've ever build. Of course this amplifier also uses the concept of active balanced headphone ground. Within this concept each headphone connection wire carries an additional signal such that the sum of the potentials of the wires equals zero. This strongly minimizes the energies stored and released in the electrical fields inside the headphone cable when an audio-signal is applied. The influence of the wire on the sound is thus reduced. Moreover, with active ground pollution of the internal signal ground by strong driving currents is eliminated and the power-supply-rejection-ratio at the output stages is strongly improved. Thus the best conditions are given for a clean and undistorted sound. Active balanced headphone ground offers most of the advantages of a true balanced headphone setup without the need of balanced connections. It can be used with any conventional dynamic or magneplanar headphone. The volume control is technically very sophisticated. The position of the potentiometer is measured with the use of an AD-converter. The output of this converter is then used to switch a bank of relais to set the proper volume level. There are a total of 64 levels which allows for very small stepsizes and a very analog feeling. The advantages of this concept are strongly reduced channel-imbalances and a much cleaner and more detailed sound. The use of a conventional stereo-potentiometer does add its own sonic signature which is now prevented. The amplification section is build around AD797 opamps biased into class-A. For the output stages BUF634 buffer amplifiers are used. These integrated circuits are very fast and thus allows the output signals to follow the input signals very closely. The amp is DC-coupled and any capacitors found in the signal path are of the highest quality polypropylen and polystyrol. A very extensive powersupply, a large number of power-regulators, and a total filter capacity of 80.000 microF (!!) assure the best working conditions for any part of the circuitry. The built-in crossfeed filter is a frequency-extended version of the natural crossfeed found in previous CORDA amplifiers and provides even better imaging. It also offers three intensity levels (Stereo, medium, high). To compensate for the psycho-acoustic bass-loss a separate switch allows to slightly increase lower-frequencies. Technically the CLASSIC is an extremely advanced headphone amplifier and offers excellent value-for-money!
  2. Item: Corda Classic Headphone Amp Location: Goldcoast Price: $ 380 Item Condition: used / excellent Reason for selling: using all in one amp/dac Payment Method: Pickup - Cash, Paypal, COD Only Extra Info: A few tiny marks (edge), not easy to see, no original box. Normal retail price new is $800. A very good neutral sounding amp with two crossfeed stages and two gain settings and two times line in. Tech Data copied from Meyer: Sure, from the outside the CLASSIC looks very modest and plain. However, technically and sonically this is the best and most advanced amplifier that we've ever build. Of course this amplifier also uses the concept of active balanced headphone ground. Within this concept each headphone connection wire carries an additional signal such that the sum of the potentials of the wires equals zero. This strongly minimizes the energies stored and released in the electrical fields inside the headphone cable when an audio-signal is applied. The influence of the wire on the sound is thus reduced. Moreover, with active ground pollution of the internal signal ground by strong driving currents is eliminated and the power-supply-rejection-ratio at the output stages is strongly improved. Thus the best conditions are given for a clean and undistorted sound. Active balanced headphone ground offers most of the advantages of a true balanced headphone setup without the need of balanced connections. It can be used with any conventional dynamic or magneplanar headphone. The volume control is technically very sophisticated. The position of the potentiometer is measured with the use of an AD-converter. The output of this converter is then used to switch a bank of relais to set the proper volume level. There are a total of 64 levels which allows for very small stepsizes and a very analog feeling. The advantages of this concept are strongly reduced channel-imbalances and a much cleaner and more detailed sound. The use of a conventional stereo-potentiometer does add its own sonic signature which is now prevented. The amplification section is build around AD797 opamps biased into class-A. For the output stages BUF634 buffer amplifiers are used. These integrated circuits are very fast and thus allows the output signals to follow the input signals very closely. The amp is DC-coupled and any capacitors found in the signal path are of the highest quality polypropylen and polystyrol. A very extensive powersupply, a large number of power-regulators, and a total filter capacity of 80.000 microF (!!) assure the best working conditions for any part of the circuitry. The built-in crossfeed filter is a frequency-extended version of the natural crossfeed found in previous CORDA amplifiers and provides even better imaging. It also offers three intensity levels (Stereo, medium, high). To compensate for the psycho-acoustic bass-loss a separate switch allows to slightly increase lower-frequencies. Technically the CLASSIC is an extremely advanced headphone amplifier and offers excellent value-for-money! Photos: Advertisements without photos of the actual item will not be approved.
  3. Item: Burson Playmate (Basic) Location: Goldcoast Price: $400 (recom. retail $600 ). Item Condition: excellent, near new Reason for selling: not the ideal combination with my speakers Payment Method: Pickup - Cash, Paypal, COD Only Extra Info: Playmate: dac / pre amp / headphone amp. Bought a few month ago from Burson Australia. Comes with all original packaging , cables etc. & power supply, Proof of purchase. Amp sold. For tech details please see: https://www.bursonaudio.com/products/playmate/ Photos: Advertisements without photos of the actual item will not be approved.
  4. Item: Naim Nac A5 Location: Goldcoast Price: $250 Item Condition: used Reason for selling: Don't use it anymore Payment Method: Pickup - Cash, Paypal, COD Only Extra Info: Two times 4.5m length. Recom. retail $60 / m. Comes with original Naim amp plugs (not fixed). Photos: Advertisements without photos of the actual item will not be approved.
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