ASTOR AST-KT88MVIP monaural power amplifier

A monaural amplifier that realizes the depth and high output of KT88 tubes.

ASTORhas renewed its lineup of high-grade amplifiers to all monaural specifications. This product, AST-KT88MVIP, achieves higher output power and deeper acoustic performance by converting a stereo amplifier into a monaural amplifier. It is particularly effective in improving acoustic performance when driving highly loaded speakers, and maximizes the potential of the KT88 tube, which has a wide output range.

Improved audio symmetry and ease of installation

If the sound field is unbalanced during stereo playback due to room acoustics or speaker placement, converting to monaural is effective. By integrating the outputs of both channels, monaural amplifiers can obtain a uniform and stable sound field and improve audio symmetry. Another advantage that cannot be overlooked is that each unit weighs less than half (compared to the company) compared to full-size stereo amplifiers, which are heavy and bulky, making installation and handling extremely easy. (AST-KT88MVIP is a model that is 5cm narrower than the SP model.)

Robust construction: Mirror stainless steel and oxygen-free copper chassis

We pursue a robust structure with a 1.6mm thick high-quality stainless steel chassis that has been beautifully mirror-finished, and a 1.5mm thick oxygen-free copper plate with a clear finish on the steel plate where the parts are attached. This thorough structure prevents resonance from inside and outside and provides noise-free and highly transparentHigh-FidelityContributing to

The transformer uses an original transformer that pursues sound quality without compromise while keeping the price down, and high-quality gold-plated terminals are used for the input and output terminals.

Unique circuit that achieves sound quality equivalent to fixed bias

For the self-bias capacitor, compared to the general manufacturer's specifications (200 to 400 microns), this machine uses a capacitor of 4000 microns, which is an order of magnitude larger. As a result, we have succeeded in obtaining the same sound quality as fixed bias even though it is self-biased. Additionally, the use of UL connections increases output power, contributing to improved sound clarity and resolution. A click-type 31-contact attenuator is used for volume, allowing precise control.

Compatibility with various vacuum tubes and best performance

This machine is characterized by its high versatility, allowing you to easily replace and use compatible vacuum tubes such as KT88, KT120, and even KT150 and KT170. By trying out various tubes manufactured by vacuum tube manufacturers around the world, it is possible to bring out the best performance that matches the characteristics of the device and the listener's preferences.