The Concero 65 is available in two chassis options. Classic and facelift versions are available.
Power output// 65W
Power bandwidth// 15Hz-110kHz
SNR// <-105db
Tubes used// 2 X 813 RCA, 1 X 814 RCA
Driver Stage:
- 814 DHT tube, amorphous C-core,bifilar winded interstage transformer.
- High power film capacitor (choke regulated) banks.
- Triple filtered filaments.
Output stage:
- Parallel 813 SET stage,ultra low noise adjustable bias circuits.
- High power film capacitors, choke regulated banks.
- The film Capacitors used, have ~1000 times the max current surge rating than any electrolytic used in other amplifiers, and 10 times less ESR/ESL than any electrolytic capacitor.
- Choke used is an 11kg-core inductor, providing extra energy storage.
- Triple filtered filaments.
- Oversized, highest quality output transformer.
- 700.000uF total primary and secondary circuits capacitance
Separate toroidal transformers for output stage, driver and filaments, 1500VA total
Power Up// Auto soft start
Dimensions WxDxH// 580mm X 480mm X 360mm
Weight// 100Kg unpacked
Description
As an output tube, we use the RCA 813 DHP, also used on our topReference model, the Exsequor. This transmitter tube is maybe, the most linear power tube ever built. Triode curves quality is unmatched even by the most linear 300B tubes, of course, bigger triodes like the 833 are far behind in linearity and sound. This big bottle tube never seizes to impress us whenever we compare it in our labs with ANY power tube used today and is our weapon of choice when designing SOTA SET amplifiers.
