Classe Audio cp-700 owner manual English, extensive listening tests extraordinary longevity

ENGLISH

extensive listening tests

extraordinary longevity

robust, isolated power supplies

10

Excellent measured performance is to be expected in world-class products, and Classé products deliver that performance. However, experience has shown that technical excellence alone is insufficient to guarantee subjectively musical results.

For this reason, all Classé products are laboriously fine-tuned during the development process by carefully controlled listening tests. Our ears are still some of the finest laboratory test instruments available, and nicely complement more traditional engineering test equipment. In the course of optimizing the circuitry for a product, hundreds of decisions are made based on the subjective impression given by substituting one high quality part for another.

As an example, we may listen to half a dozen 0.1% tolerance film resistor components of the same value, from several different companies. Standard tests may show them all to provide identical results in terms of noise, distortion, and so forth. Yet, almost invariably, one selection yields some small improvement in the subjective reaction to the performance of the product under development. Less often, even a single such change can result in a surprisingly large improvement.

Multiply those various improvements by the dozens or even hundreds of such decisions that must be made before the product can be finalized for production, and you have a remarkable improvement, indeed – all based on careful listening tests, which we view as a necessary complement to the solid engineering you might rightly expect from Classé.

Another benefit of having worked with highly refined circuit designs so extensively over many years is that we have vast experience in what works well over the long term.

By using only the highest quality parts to begin with, and then using them in an informed way as a result of both accelerated aging experiments and actual long- term experience, we are able to design and manufacture products which we are confident will stand the test of time.

We are confident that your new Classé preamplifier will give you many years of trouble-free reliability and musical enjoyment, just as previous Classé products have given their owners.

The CP-700 employs an outboard power supply to provide the ultimate in performance. This unit includes a massive 135 VA toroidal transformer with five secondary windings to provide maximum isolation for both the positive and negative voltages required by each channel, as well as the voltage used by the control circuitry within the preamplifier itself.

This design approach ensures that the preamplifier itself sees only the pure, highly-regulated DC power it needs for handling the music signals, while the high-voltage AC mains is kept safely away from your music. In short, it creates an ideal environment in which the refined circuitry of the CP-700 can operate to its full potential in service of your musical enjoyment.