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IRIS 845
22 WPC, 845 triode based SET stereo power amplifier. (0) NFB, transformer interstage coupling. Real high end. $2299.00 USD

Each channel of the Belles 350A is an all in one integrated assembly. The circuit components are mounted directly to the heatsink, eliminating the need for additional wiring that can produce inconsistencies from one channel to the next. Whether you order a 2 or 6 channel unit, performance is consistent throughout the amplifier.

150A
Performance. You know it when you see it. A finely tuned Formula One race car taking the checkered flag. An athelete taking a victory lap after setting a new world and olympic record.

Forged to meet the same high performance standards as the original, David Belles has designed the 150A to exceed its predecessor in every conceivable category­sonics, reliability, fit and finish, and cost.

150A Hot Rod
The Belles 150A Hot Rod version is a refined version of the outstanding Belles 150A power amplifier. All the internal connections of the 150A are specially treated, as well as many other internal enhancements are added to convert the unit into the Hot Rod configuration.

Consistent with conrad-johnson's design philosophy that circuits should be kept as simple as possible, the MV60 works its magic with just eight vacuum tubes. A composite triode input stage is direct coupled to a cathode-coupled phase inverter. The two sections of the phase inverter drive the output stage, which is comprised of a pair of EL34s operated in an ultralinear configuration, producing 55 watts per channel. Limited negative feedback is applied to the circuit to reduce distortion and provide a sufficiently high damping factor to control most real-world speaker systems. Discrete dc power supply regulators are provided for the input and inverter stages, in order to isolate each stage from the output signal.

At conrad-johnson we are keenly aware that component parts contribute importantly to the sonic performance of any circuit design. The Premier 140 amplifier maintains the exacting quality standards for which conrad-johnson is internationally known. Resistors are precision tin-oxide deposited on glass and bulk metal foil. All audio-circuit capacitors are polystyrene, while the power supplies use large value polypropylene in parallel with polystyrene capacitors. There are no electrolytic capacitors in the audio circuits or in the related power supplies. Proprietary wide-bandwidth output transformers contribute to excellent high frequency performance. Even the machined gold plated OFC connectors and the internal wiring have been carefully selected for optimal sonic performance. Attention to details of this kind enable us to extract the full potential from our circuit designs and ensure that our products will perform to this potential for years to come.

Rega[back to top]

While the build quality is readily evidenced in the exquisitely sculpted appearance of the Eighty-Eight, the beauty of this amplifier is more than just skin deep. From the heavy-duty gold plated RCA inputs to the custom wound output transformers, the audio signal travels through only the finest components available. With this winning combination of leading edge circuit topology, great components, and a stunning appearance, you can be certain that you are investing in amplifier design that only Rogue Audio can deliver.

 
 
 

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