Ayre IBE Test Disc

1. Short Glide Tone

This 60-second track contains a 45-second glide tone that sweeps from 5 Hz to 20 kHz, preceded by 5 seconds of silence and followed by 10 seconds of silence. Please be sure to play the entire track without interruption. This track offers a quick system "tune-up" for chose times When you just can't wait five minutes for the full glide tone.

2. White Noise

Uncorrelated stereo white noise with a peak level of -12 dB. White noise is purely random in nature and is chiefly used with test instruments for specialised measurements. The track lasts for 180 seconds and features a 2-second fade in and fade our

3. Pink Noise

Uncorrelated stereo pink noise with a peak level of -6 dB. Pink noise is low-pass filtered to achieve equal energy in each octave. and is also comp used with rest instruments for specialised measurements. The track lasts for 180 seconds and features a 2-second fade in and fade out.

4. Brown Noise

Uncorrelated stereo brown noise with a peak level of 0 dB. Brown noise is low-pass filtered to closely mimic the spectral distribution of music. This signal is excellent for use in breaking-in components and cables. The track lasts for 180 seconds and features a 2-second fade in and fade out

5. Mono Brown Noise

Identical brown noise signals in both channels. This track can be very useful when integrating sub-woofers with other loudspeakers. The track lasts 60 seconds and features a 2-second fade in and fade out.

6. Out-of-Phase Brown Noise

Opposite-polarity brown noise signals in each channel. This track can be used to minimise the actual sound levels when breaking-in equipment, due to acoustic cancellation between the channels. The overall sound level will be minimised when the two loudspeakers are placed as close together as possible.

7. Full Glide Tone

This 300-second track contains a 285-second glide tone that sweeps from 5 Hz to 20 kHz, preceded by 5 seconds of silence and followed by 10 seconds of silence. Please be sure to play the entire track without interruption. Try it, you'll like it!

We endeavour to despatch same day for orders placed up to 1pm on available stock items (items with stock message "Usually dispatched within 24 hours"). Please remember to check with us first for a physical stock check if next day delivery is important to you. Any items with stock message "Usually dispatched within 72 hours" are items that we do not hold in stock but order in from the importer or manufacturer as soon as a customer order is received. Occasionally these may be delayed beyond 72 hours due to importer/manufacturer stock levels but we will inform you as soon as we can if this is the case.

UK Orders

We despatch the bulk of our UK mainland items on a 24 hour service – Free of Charge.  Non Mainland locations - Isle of Man, Isle of Wight, the Scilly Isles, the Scottish highlands and Islands, the Channel Islands and Northern Ireland may take a day or so longer and are not Free of Charge. Smaller items are delivered using Royal Mail 24 or special delivery. Larger items are delivered using a courier service such as DPD or UPS.

International Orders:

Due to the nature of our products and brand restrictions we are only able to send certain items internationally. Smaller items are delivered using Royal Mail Small Packets Airmail with International Tracked and/or Signed depending on value of item and availability of the service. Larger International shipments are sent by insured and tracked services using UPS. If there are any delays due to specific customs regulations, etc, you will be contacted by Hifisound or by the courier with a request for any further information required. Customs duties can apply for shipments to any countries outside of the UK depending on where the product you have bought is made. Customers are responsible for all taxes and duties incurred when the items enter their country.

Collect in Store or Home Install

At the request of the manufacturer some items cannot be supplied by mail order but you can click and buy them and then elect to collect them from our store or arrange a home install (if applicable). Applicable items clearly state that they are Collect in store or home install. Once ordered you will receive a message prompting you to contact us by phone or email to arrange for us to deliver and install or to reserve and collect from our store at your convenience, you will also be advised of the delivery time / stock availability as not all Home install / collect in store items are held in stock.