ASTOR AST-KT88MDXSU KT88 Mono Power Amplifier Set
Product code: AST-KT88MDXSUASTOR AST-KT88MDXSU KT88 Mono Power Amplifier Set
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Supports the power of the KT88 with a mirror stainless chassis.
UL connection, self-bias, 21-point attenuatorASTORMono Power Amplifier
Mono Power Amplifier with KT88
AST-KT88MDXSUは、KT88をoutput tubeUsed forASTORThis is a mono power amplifier. The unit of sale is set to two units and is used in the mono configuration of left and right independent.
The vacuum tube used is KT88 × 2, 12AU7 × 1, 12AX7 × 1. The output stage adopts a KT88, and it is composed of UL connection, ease of handling by self-bias method, and a thick expression like a vacuum tube amplifier.
Output is 10W. This model aims to bring out the KT88's power feeling, sound thickness, and stable driving force carefully in a mono configuration instead of competing for high power.
ASTORUsing Original Transformer
AST-90P, TOR-15PP, H-2437 are used for mounted transformers. Including power supply and output,ASTORIt is a structure with a sense of quantity.
In vacuum tube amplifiers, transformers are an important part of the sound skeleton, low range stability, and sound field prospects. This machine has a compact appearance, but it has a solid power supply and output part required as a mono amplifier.
Equipped with 21-point click attenuator
The input part is equipped with a 100 kΩ attenuator with a click-type 21 contact. The front panel knob allows you to adjust the input level step by step.
In addition to gain adjustment when combined with preamplifiers, it is also possible to combine with source equipment with output level depending on the system configuration. Because of the mono configuration of left and right independence, it is also characteristic that it can perform fine level adjustment.
304 stainless steel mirror finish chassis
The chassis is made of 304 stainless 1.2mm thick and has a mirror finish. It uses 304 stainless 1.2mm thickness on the part mounting middle plate, making it rigid not only on the appearance but also on the inner structural material.
The combination of the mirror surface stainless steel, the calm panel of the front, the black transcase, the classic vacuum tube amplifier,ASTORIt has a strong feeling.
Broadband design from 10Hz to 50kHz
The frequency characteristic is 10Hz to 50kHz. It is designed as a KT88 mounted amplifier with room from low to high range.
The residual noise is 0.31% at 1W time of 1mV and the distortion rate is 0.31% at 1W. It is easy to handle even in combination with high-efficiency speakers, and the specification aims to carefully draw the contours and spatial expressions of music while maintaining a vacuum tube amplifier-like texture.
Special Sale of Current Items
This machine isASTOROnly in stock is a special sale. Although there is no manufacturer warranty or repair service due to difficulty in continuing the brand in the future, we will provide a six-year warranty at our shop.
Mono configuration using KT88,ASTORIt is a rare vacuum tube power amplifier with original transformer, 304 stainless steel mirror surface chassis and 21 contact click attenuator.
| Type | AST-KT88MDXSU |
|---|---|
| Types and Standards | Mono Power Amplifier |
| Sales Unit | Two set |
| Use Transformer | AST-90P ×1、TOR-15PP ×1、H-2437 ×1 |
| Use Vacuum Tube | KT88 ×2、12AU7 ×1、12AX7 ×1 |
| Frequency Characteristics | 10Hz〜50kHz |
| Residual noise | 1W at 1mV or less |
| Distortion | At 1W: 0.31% |
| Input Impedance | Click Type 21 Contact A Type 100kΩ |
| Connection Circuit Bias | UL connection/self-bias type |
| Input Terminal | INPUT ×1 |
| Speaker Terminal | 0-8-16Ω |
| POWER Output | 10W |
| Load Resistance | 8kΩ |
| Size | W240 × D405 × H170mm |
| Weight | 8 kg/1 unit |
| Chassis Steel | 304 stainless 1.2mm thick/mirror finish |
| Parts Mounting Sheet Steel | 304 stainless 1.2mm thickness |
| Power supply specifications | 100V Specifications |
| Warranty | No Manufacturer Warranty/Six-year Warranty |
Sound Quality Trends from Design
The AST-KT88MDXSU is a power amplifier that aims to bring out the power and thickness of the KT88 in a mono configuration. By separating the left and right, interference in the power supply and output stage is suppressed, and the structure is also favorable in terms of sound image stability and channel separation.
It looks like a KT88 amplifier with a UL connection, and it can be expected to create a sound with a good balance that aims at smoothness in the tripolar tube connection and intermediate driving force in the five-pole tube connection. While emphasizing sound thickness, extrusion, and low-range stability, the expression that does not become too hard is attractive.
304 stainless steel mirror surface with chassisASTORThe combination of original transformers not only contributes to the beauty of the appearance, but also the rigidity and stability of the enclosure. This model combines the presence of a vacuum tube amplifier with a solid sense of quantity.
Because of the 10W output, the combined speakers have high efficiency models and honest models with impedance characteristics. It is suitable for systems that emphasize sound color, density, lingering, vacuum tube amplifier texture rather than loud volume.
