Astin Trew AT2-2100 Your Personal User Manual - Page 4

Browse online or download pdf Your Personal User Manual for Amplifier Astin Trew AT2-2100. Astin Trew AT2-2100 12 pages.

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Input switching: Is through high quality sealed gold plated relays, reducing signal

pathways and offering the best long term switching solution.

Pre-amplifier circuit(s): A hybrid design, the active circuit is run substantially

in 'class A' to eliminate crossover distortion at low levels, and a front end audio

transformer stage ensures galvanic isolation for very low noise and EMI/RFI isolation.

• There are two pre-amplifier settings, when powered up, the 'normal'

setting is activated and this offers a neutral balance. A fascia

mounted switch AT-1 offers a slightly warmer sound quality that

improves some musical material, and can also help 'correct' overly

bright or analytical loudspeakers. Do try both and see which you

prefer in your home system or with particular source materials.

Volume control: A ladder resistor network specially developed for high end

audio products is employed. Extensive audio comparisons between the 'usual'

potentiometer and resistor networks used in high quality audio products against

our solution proved to us that this is a critical element in amplifier design and often

overlooked.

Power amplifier circuit: Based on our own MOSFET design (patent applied for),

an all discrete complimentary circuit offering 90W/8 Ohms. Running partly in class

A to remove crossover distortion that tends to mask the musical micro-details that

make music replay convincing. The heatsinks do get very warm in use. Please refer to

section 3 'getting started' regarding correct placement of this amplifier when in use.

Mechanical design: The fascia is manufactured from aluminium and milled to form

the unique design. The aluminium fascia is then shot blasted, deep etched and

anodised for a high quality durable finish. The casework and chassis are formed from

mild steel and wet painted. The supporting feet are designed to offer isolation from

vibration.

Packaging for transit: The AT2-2100 is boxed with a foam inner to protect it from

all but the worst abuse during third party transit. Your local Dealer will ensure your

amplifier arrives in perfect condition.

AT2-2100 V1.0/17.01.2018