AUDIO NOTE Kassai 300B Monoblock Power Amplifier

Audio Note (UK) Kassai mono power amplifier is a Pure Class A, single-ended tube amplifier utilizing the highly acclaimed 300B triode; its performance level is significantly superior to the vast majority of contemporary designs.

They are designed specifically for sonic performance rather than technical specifications, and meet all Audio Note (UK) Level 4 standards:—

Pure Class A operation

Zero negative feedback

Single-ended output stage

Vacuum tube rectification

Directly heated triode operation

Quality of materials and parts

Each amplifier is entirely hand-assembled and equipped with the following components: –

Audio Note (UK) custom output transformers featuring copper primary windings, Audio Note (UK) silver secondary windings, and AN (UK) UHiB double C-cores.

Audio Note (UK) Custom 1-Watt Tantalum Resistor

Audio Note (UK) Copper Foil Capacitors

Audio Note (UK) pure silver internal wiring

Black Gate capacitors in critical areas

Each KASSAI Balanced amplifier is equipped with input and output transformers that are unrivaled in design, quality, and performance within this price range in the realm of audio reproduction.

Balanced/XLR input transformers are hand-wound by Audio Note (UK) and feature copper primaries and silver secondaries. Utilizing the highest quality core materials, they provide an optimal signal path from the preamplifier.

Output transformers are specified similarly, featuring copper primaries and silver secondaries. The cores utilize our proprietary Double C design and are manufactured from our own UHiB material. Unsurprisingly, they are custom-designed and manufactured in-house in the UK.

As one would expect from Audio Note (UK) Level 4 products, each amplifier features valve rectification provided by a selected 5U4GB valve.

Technical specifications

Input impedance: 100kΩ / 600Ω (balanced version)

Input sensitivity: 250mV (Standard) / 3.15V (Low Gain) / 1.6V (Balanced)

Maximum output: 18 watts RMS per channel (4 or 8-ohm load)

Maximum output: 8 watts per channel (approx.) into a 4- or 8-ohm load.

Vacuum tubes: 2 x 6SN7 (1 per chassis)

4 x 300B (2 per chassis)

2 x 5U4GB (1 per chassis)

Unit weight: 20 kg (per amplifier)

Unit dimensions: 195 mm (H) x 205 mm (W) x 500 mm (D) (per amplifier)

Power Input: AC 100-120V / 220-240V, 50/60Hz

Maximum power consumption: 200 W

Note: Due to Audio Note (UK)’s ongoing research and development program, specifications are subject to change without notice.

Brand

AUDIO NOTE

Peter Qvortrup, proprietor of Audio Note UK, maintains that analogue sound remains superior in our digital age. ANALOG technology possesses unparalleled capability in rendering subtle nuances and delicate resolution. Perfection in sound cannot be achieved through multiple sampling or pitch control. The lost details within music cannot be compensated for by digital technology. All apparatus is handcrafted from the finest materials to each client's unique specifications. Delivery times for appliances are 3-4 months following order placement, which is considered acceptable within this category. We appreciate your patience and understanding. The grade markings on the equipment facilitate straightforward system selection. While it is not essential to pair appliances of the same grade, selecting appliances with significantly differing grades may prevent you from fully enjoying the advantages of higher-grade components.

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