이것도 좀 비싸겠지만,아무리비싸도 300이하입니다....^.^
미국에서는 5500불정도하니까.....반으로 뚝잘라서 2,750불이겠군요.
여기서 80%정도면 아마 중국내 현지가는 2,300~2,500불정도면...
REFERENCE9.9__845 Class A single-ended mono block power amplifiers
Consonance Reference 9.9 monoblock tube power amplifier R9.9 is the matching top of the range monoblock power amplifier for the R1.1. Similar to R1.1, the top uses cherry wood with large machined aluminum front plate. Each channel uses a direct heated triode Shuguang 845 for single-ended class A amplification. First stage goes through a Siemens 60s NOS E88CC and US 5687 NOS as the powerful driver stage to realize an output power of 28W, with no global negative feedback. Point to point wirings are used with Kimber high purity copper hook up wire. Resistors are Chinese military grade metal film. Signal coupling capacitors are from Rel-Cap/PPMF. R9.9 has very good driving power due to a strong power supply and well designed output transformer. The filament power supply and the high tension power supply are separated, using audio grade electrolytic capacitor and improved EI power transformer and choke for good power filtering and reserve. This enables good handling during dynamic swings in music. The driver stage unlike others does not use inter-stage transformer coupling or power tube. Instead the US 5687 NOS is selected to do this job with its adequate driving power and musicality. The advantage being reduction in distortion and greatly improves the purity of the delivered sound. At the center of the front panel Opera Audio uses a special power indicator tube 6E2. Apart from giving user an idea of the output power, it enhances the appearance of the unit when in operation.
At the point I discovered I would have power amplifiers from Opera coming my way for review, I had never heard of the company. But soon thereafter, SoundStage! published Marc Mickelson’s very positive review of Opera’s inexpensive Consonance M800 monoblocks, and my interest was piqued. I then looked at the company’s broad range of offerings and lapsed into confusion. This eight-year-old company located in Bejjing, China has an extensive product line, sometimes with subtle differentiations between models. Everything Opera builds seems to get the name Consonance, and the review samples came with the Reference 9.9 designation on them as well. But there is an entire series of Reference 9.9 amplifiers utilizing various output tubes for different levels of power and sonic signatures. This series includes the 845-based 9.9A, the 211-based 9.9B, the 300B-based 9.9C, and the 2A3 based 9.9D. Prices vary, with the 9.9A amps coming in at $5500 USD per pair.
Getting to it
According to Opera, each 9.9A amplifier uses a Shuguang 845 direct-heated triode output tube in a single-ended class-A circuit. The input signal goes through NOS Siemens 60S/E88CC and a US-made NOS 5687 (driver-stage) tubes to produce 28 watts of rated power with no global negative feedback. Kimber high-purity wire is reportedly utilized in the point-to-point-wired circuit, and resistors are Chinese military-grade metal-film types. Signal coupling capacitors are Rel-Cap/PPMFs.
Above the power switch is the Magic Eye 6E2-tube power indicator. This vacuum tube shows two vertically oriented luminescent bars that extend from the top and bottom toward each other as power output increases. When the power output of the 9.9A is at maximum, the two green segments meet in the center to form a solid line. I’m told that the 6E2 tube, with its claimed 10,000-hour life, is Russian military surplus and still in production. Opera says it has loads of the tubes in inventory should you need a replacement
