Todd
Headphone Vinyl Meister
Member of the Trade: TTVJ Audio
- Joined
- Jun 21, 2001
- Posts
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HI All,
We are now shipping the TTVJ FET A amplifiers. They are going to be $649 for the first 10 and $729 for each thereafter. Order yours now and save.
The TTVJ Fet-A headphone amp is a slightly different take on the general-purpose desktop headphone amp. Instead of using opamps, it's circuitry consists of entirely single-ended, class-A discrete transistor circuitry. Precision, low-noise JFET transistors are used for voltage amplification, and power MOS transistors are used for the output stage. Bipolar transistors are used for biasing.
Since JFET transistors make very linear amplifiers, no overall feedback is used in the design - only local feedback around one stage to stabilize the gain. The result is excellent overload characteristics and unmeasurable high-order distortion products.
The single-ended power MOS output stage is DC-coupled to the headphones, providing low output impedance and a very flat frequency response. It is capable of driving any headphones, and can deliver up to 9V RMS into 100 ohms.
The result is a combination of the best characteristics of tube and solid-state circuits: very low noise, low distortion, wide frequency response, and low output impedance, along with the excellent overload response and, of course, excellent sound.
We look forward to hearing from you soon! Also look for a loaner program to appear here soon.
Todd
We are now shipping the TTVJ FET A amplifiers. They are going to be $649 for the first 10 and $729 for each thereafter. Order yours now and save.
The TTVJ Fet-A headphone amp is a slightly different take on the general-purpose desktop headphone amp. Instead of using opamps, it's circuitry consists of entirely single-ended, class-A discrete transistor circuitry. Precision, low-noise JFET transistors are used for voltage amplification, and power MOS transistors are used for the output stage. Bipolar transistors are used for biasing.
Since JFET transistors make very linear amplifiers, no overall feedback is used in the design - only local feedback around one stage to stabilize the gain. The result is excellent overload characteristics and unmeasurable high-order distortion products.
The single-ended power MOS output stage is DC-coupled to the headphones, providing low output impedance and a very flat frequency response. It is capable of driving any headphones, and can deliver up to 9V RMS into 100 ohms.
The result is a combination of the best characteristics of tube and solid-state circuits: very low noise, low distortion, wide frequency response, and low output impedance, along with the excellent overload response and, of course, excellent sound.
We look forward to hearing from you soon! Also look for a loaner program to appear here soon.
Todd