Aries Cerat Concero - 65w Mono (Pair)

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The Concero 65 series is finally complete, Series comprised of three levels of performance with the Reference, Signature and Limited Edition models.

Both models base their output stage on a parallel pair of 813 tubes. As an output tube, we use the RCA 813 DHP, also used on our top model, the Exsequor. This transmitter tube, maybe is, 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.

The Reference version uses the 814 Directly heated tube, used as a triode. The driver stage uses its own PSUs and special biasing circuits. The driver stage is built like as a small SET amplifier driving the output stage using a unique interstage transformer. A sample of the driver’s capabilities it the fact that it can deliver 14W of power if needed. The output stage is driven in absolute fidelity of the input signal.

Filaments: All three DH tubes, output and driver are using triple PI filters with a total of 700,000uF of capacitance, giving a complete ripple and noise free filament current.

Driver and output PSU: All PSU are independently using their own transformers, chokes and our proprietary SuperCapacitors.These unique type of film capacitors present a set of specifications unprecedented in capacitors used in audio, such as ESR and ESL values 100 times lower than electrolytes, as well as max current surge measured in Kiloamperes.

Biasing circuits: Both driver and output stage as biased with our biasing circuits, with all tubes monitored and biased on the fly.No need for external instruments. Also using the biasing-monitor system the user can fine-tune the amplifier to suit it’s system sonic wise,on the fly while music is playing.


Power: 65W
Power consumption per channel: 400W
Noise floor: -90db(Ref) un-weighted
Gain: x2.7 (8.5db)
Inputs: RCA, AC link proprietary input
Energy storage: 2000j
1,800VA power transformer
Signal bandwidth: 10Hz-110KHz @80% max power
Output impedance: User selectable(impedance matching system)
1.6ohm(8ohm setting),0.8ohm(4ohm),0.4ohm(2ohm setting)
Distortion: -70db H2 @ 1W -50db H2 @10W
Adjustable bias on the fly
Output and driver on line monitors
No capacitor in signal path
SuperCapacitors used for output and driver power supply(1mohm ESR
Dimensions: 490mmW X 590mmD x 350mm (Reference line)
Weight: 95kg each

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Nintronics offers generous trade in prices to help make your next upgrade as seamless as possible, while greatly reducing the overall price of your purchase. Depending upon the items involved, Nintronics will be happy to send out one of our nationwide installation engineers to collect your traded in items and unbox, setup and calibrate your new equipment.

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