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Headphone Amplifiers |
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| Corvette | ||
| Frigate | ||
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Power Supplies |
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| Two Bus Power Supply | ||
| Three Bus Power Supply | ||
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Parts |
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| PCBs | ||
| Transformers | ||
| Tubes | ||
Headphone Amplifier Corvette
Description
Corvette is a high end pure class A DIY headphone amplifier designed for the highest quality music reproduction with the minimum of distortion. An essential part of any good sounding headphones is the amplifier that is driving them. Corvette is capable of driving a wide range of headphones and it will give you the best advantage in listening pleasure. Do not compare this amplifier to the ones made somewhere in Asia from counterfeit parts and using low voltage Wal-Mart power supplies. Corvette uses only the finest audiophile quality components that have been carefully selected with no expense spared. Corvette uses two 6922 tubes for their linearity and ultra low distortion. (You also can roll in 6N1P or 6H23P tubes). The 6922 tubes are matched with an aid of Amplitrex tube tester and a computer. High quality Kemet, WIMA, Nichicon capacitors are used along with an audio grade ALPS volume potentiometer. Military grade Vishay/Dale metal film resistors used throughout the kit. A high quality built in dual bus power supply with ultra low noise characteristics delivers anode and filament voltages and a very generous amount of post and pre regulation smoothing capacitance provided by Nichicon and Kemet capacitors. The kit is assembled on a Canadian made printed circuit board that has thickness of 1.75 millimeters and 2 Oz copper traces. You have a choice of purchasing a transformless kit or a kit that includes filament 182H9 and B+ 182D110 transformers. The transformers are manufactured in Canada and are designed for both 120V and 240V power arrangements. The price of this kit will increase on June 1, 2013, to $230.00 for transformerless kit and $330.00 for kit equipped with transformers.
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$299.00 (with transformers) |
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$199.00 (without transformers) |
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| Corvette User Manual | ||||||
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Specifications of Single End Pure Class A OTL Amplifier Corvette
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10Hz - 250 KHz (-1dB) 30 Ohm - 600 Ohm 100 KOhm 85 Ohm < 0.001%@1KHz 12W@250 Volt 5W@6.3 Volt 97 dBa - 92 dB 150 mW@30 Ohm |
Component Selection
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Two Matched Electro Harmonix 6922 (you can roll in 6N1P, 6H23P) ALPS RK27 also known as Blue Velvet Vishay/Dale Metal Film WIMA 1 Microfarad WIMA 1 Microfarad WIMA 1 Microfarad Nichicon 100 Microfarad Nichicon Muse Audio Grade 100 Microfarad Four WIMA 0.047 Microfarad MKP-X2 Four WIMA 0.047 Microfarad MKP-X2 Three Nichicon 100 Microfarad and One Kemet 0.22 Microfarad One Nichicon 100 Microfarad and One Kemet 0.22 Microfarad Three Nichicon 1000 Microfarad and One Kemet 0.22 Microfarad One Nichicon 1000 Microfarad and One Kemet 0.22 Microfarad MOSFET IRF840 LD1084V |