EXPIRED For Sale Air Tight ATC 1 Pre Amplifier

Further Information

Air Tight ATC 1 up for grabs. Made in Japan. This is a 100vac preamp so step down transformer required which I can provide at additional cost.

The ATC 1 is very neutral and transparent. Wide open soundstage, very detailed and precise with deep bass, excellent mids and uppers. Very dynamic.

Included are 5 x GE 5751 Black Plate D Getters.

Has upgraded Dueland caps and a new $500 volume control.

Cosmetically the front plate is immaculate. There are a few blemishes on other parts of the chassis, see images.

Description from HiFiNews:

"At the back of the amp, all is gold-plated, with inputs and outputs corresponding to the front controls. but with two extras. In addition to the main outputs there's a spare set for feeding a second power amp and a pair of sockets tagged 'EQ Out'. The latter takes the phono signal from input through its RIAA circuitry and straight out again, for feeding directly into the ATM-1 power amplifier, bypassing every unnecessary switch and stage in the preamp. This can be used in tandem with the standard outputs for some curious purist combinations.

The RIAA circuit itself is based on vintage concepts, just like the PCB-free construction, and consists of a three-stage low-impedance equaliser described as 'once employed by the Marantz 7'. This is the stage fed straight to the 'EQ Out' sockets. The single stage line amp is devoid of tone controls or filter circuits and features a low-impedance cathode follower output. The power supply, meanwhile, employs a solid-state ripple filter circuit for suppressing mains hum and noises.

Despite the size of the enclosure, which would suggest the use of a compact toroidal transformer, Air Tight opted for an EI core type because it provides 'sharper attack of sounds'. The cores are wrapped in silicon steel plate and copper plate to ensure perfect shielding. As for the power supply, phono and line stages, these are totally independent, the latter two being fully shielded. The chassis was made deliberately heavy to help minimise vibration and component interaction"

Dimensions(w x d x h) 43 x 33.5 x 10cm
Weight 7kg

Have original factory box plus documentation.

Happy to ship at buyer's cost. Insurance recommended. Will be double boxed.

Can deliver within 150km of Bendigo.