| Atma-Sphere | 
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Music Systems |
| Atma-Sphere |
|
Music Systems |
|
Our 300b OTL was created at the behest of several 300b advocates. We did so and in so doing have created a unique amplifier. When we were asked to do this project, we said that while it was possible, the results would not exceed that of our other amplifiers. It was suggested that that wasn't important, that the cult around the 300b was a market worth exploiting. Ultimately we compromised (since we are only interested in building state of the art products and nothing else) and so built the amplifier as a demonstration. The amplifier is based on our patented circuitry, with some innovations allowing us to directly couple the 300b cathodes (which are AC operated filaments) directly to the loudspeaker terminals. The four output tubes produce 14 watts into 16 ohms and any 300b and their variants available are supported. Due to the AC filaments tube life is estimated to be 30,000 to 50,000 hours. The amplifier meets many of the same specs on the bench as do our conventional amps, except for the lower power. The result: an amplifier vastly superior to any 300b amplifier made. Bass, high-frequency extension, more detail and a vastly expanded soundstage are some of the immediate and obvious improvements over other 300b designs. Was it better than any of our existing amplifiers? No. What the 300b OTL demonstrates is exactly what we forecast: the 6AS7 is every bit the tube that the 300b is and more. Four 6AS7s in the same amplifier produce over twice as much power for a cost of less than a single 300b. So our 300b OTL remains as a demonstration and an example of our commitment to quality. Although state-of-the-art for 300b amplifiers, we have no plans of producing it since it offers no performance increase over our existing amps. See comments elsewhere on this website. FEATURES
SPECIFICATIONS
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