PRODUCTS : ELECTRONICS : Concerto II
Concerto has always been an outstanding amplifier. But when we reintroduced Concerto II in 2002, we did so with a single goal in mind: taking the power and performance of the original and pushing it to a whole new level.
Enter Concerto II: an amplifier created for listeners who crave power, yet demand the purity and transparency that characterize classic single-ended design. Listeners who seek a rich, real harmonic structure balanced by a more natural bass decay. Listeners who are passionate about percussion, and demand an amplifier that will capture bold, boundless percussive energy each and every time they take a favorite album or CD for a whirl.
In short, Concerto II is a push-pull amplifier that provides single-ended sound at a truly surprising price point. What's more, Concerto II offers maximum flexibility by allowing our listeners to use their choice of three different output tubes -- without having to adjust bias.
- Low-level 1.5dB. of feedback
- Self-biasing circuits (one per channel)
- Flexibility of three different output tube choices
- Output transformers are 100-watt devices fitted with grain-oriented laminations
- High quality mil-spec, multi-layered 2-oz. copper trace circuit boards
- Capacitors are low ESR/ESL types for increased high- frequency performance
- Satin-black chassis with chrome accents (optionally finished with a polished, non magnetic stainless steel chassis, chrome-plated transformer caps and nameplate)
Type: | Push-pull, transformer-coupled, pure class A, parallel output, low-feedback, ultralinear stereo amplifier |
Output Power: | 40-48 wpc |
Input Sensitivity: | Direct Drive stage 700mV (U.S. only), Cascode front end stage 400mV |
Input Impedance: | 470K ohms |
Output Impedance: | 4 and 8 ohms |
Frequency Response: | 20Hz to 60kHz ± 0.3dB. |
Tube Complement: | 4 x 6550, KT88 or KT90, 2 x 12AU7, 2 x 6DJ8 |
Dimensions: | 18.25" x 13.75" (incl. heat sinks & terminals) x 10" [ W x D x H ] |
Weight: | 60 lbs. |
Type: | Push-pull, transformer-coupled, pure class A, parallel output, low-feedback, ultralinear monoblock amplifier |
Output Power: | 60-80 wpc or 40 wpc (Triode wired version by special order) |
Input Sensitivity: | 450mV |
Input Impedance: | 180K ohms |
Output Impedance: | 6 ohms (others available by special order) |
Frequency Response: | 15Hz to 45kHz ± 0.5dB. |
Tube Complement: | 4 x 6550, KT88 or KT90, 1 x 12AU7, 1 x 6DJ8 (per mono block) |
Dimensions: | 10" x 18 " (incl. heat sinks & terminals) x 9" [ W x D x H ] |
Weight: | 45 lbs. per monoblock |
Warranty: | 3 years parts and labor/90 days on tubes |