main product image

Analogue Input Terminator Plug

Supplied in sets of 4 per pack

Unused analogue input sockets in pre/integrated amplifiers can often act as conduits for pollutants such as RFI (radio frequency interference). A simple but effective way to minimise the problem is by the use of Atlas Analogue Input Terminators (AIT) on all unused analogue inputs.

Atlas Input Terminators (AITs) are simple passive devices which, by reducing the pathways to noise ingression or transmission, help reduce the noise burden in any system. This often leads to lower background noise and improved fidelity.

To use, plug an AIT into any unused input RCA phono sockets on your integrated or pre-amplifier, being careful to avoid the outputs. With the AIT in place, your amplifier’s unused inputs will be in a defined low noise state and resistant to the interference which can reduce sound quality.

Caution: Do not plug an AIT or DOT into the RCA analogue outputs on your amplifier – you may damage your equipment!

main product image

Digital Output Terminator Plug

Supplied in sets of 2 per pack

Unused digital outputs in CD players/DACS/amplifiers can be susceptible to RFI (Radio Frequency Interference), which manifests as noise. Using Atlas Digital Output Terminators (DOTs) on all unused digital outputs will reduce wide-band spectral interference. Both Isolators are beautifully hand crafted and produced in Scotland.

Unused input sockets on analogue components are susceptible to the ingression and amplification of noise by terminating unused inputs However digital audio outputs can also be a source of system-wide interference and therefore terminating these devices with their characteristic impedance eliminates stray emissions, minimising RF noise. Simply plug the DOT into any unused digital audio (S/PDIF) output.

Caution: Do not plug an AIT or DOT into the RCA analogue outputs on your amplifier – you may damage your equipment!

main product image

McCallum Wooden Isolator

Supplied in sets of 4 per pack

These Isolators aim to reduce transmission coupled mechanical vibration, principally between a speaker cabinet and the room, reducing the amount of speaker cabinet energy coupling to the floor. The wooden Isolator is for use principally with stand mounted-loudspeakers, although lighter floor-standing speakers with small form factors are suitable.

During the development of the Ultra plug, we investigated the use of certain types of slow dried wood (as many have a lower dielectric constant lower than Teflon) for the internal insert material. Having built up samples, we were happy with the results, however we could not maintain the very thin sectional wall thicknesses we required for the plug during production.

The wood we particularly were attracted to was African Blackwood, one of the densest and most absorbent woods around, often found in guitars, cellos and many woodwind instruments – and the principal wood used in the chanters and pipes in Scottish Bagpipes!

We approached the largest Scottish bagpipe producer in the world, McCallum, based in our home town of Kilmarnock, to see if we could come up with a collaborative project that would be of interest to our many customers around the world, with these Isolators being the result.

the performance connection