DISCONTINUED Innes Delay Master 7 Audio Delay System

Delay Master 7 Delay System Screen


Time Zone/Program Delay (available in Australia only)

The Delay Master 7 is a time-zone correction audio delay unit, offering four stereo AES-3 or Axia Livewire digital audio channels with independent delay settings of up to twenty-four hours. It boasts 24-bit 48kHz audio recording and playback, serial and IP data delay, as well as four contact closure inputs and outputs per channel as an optional extra. Mirrored (RAID-1) hard drives and hot-swappable dual redundant power supplies offer maximum reliability. The Delay Master can be synchronised to an internet time reference, to ensure accurate daylight saving transitions and switching using the in-built events scheduler. The delay is accurate to within less than one second in twenty-four hours.

Each channel in the Delay Master 7 provides a fixed time stereo delay in one frame (40ms) steps, offering an easy solution to transferring broadcast program across time zone boundaries or for simply delaying program for rebroadcast at a more convenient time.


The unit offers a fixed delay mode, where the delay is manually selected, or an automatic time zone mode where the originator and destination time zones are selected and the appropriate delay is calculated, taking into account daylight saving when in force. Control is from a GUI interface on the optional inbuilt colour LCD screen or an external monitor. The Delay Master supports programmed event scheduling which can be set up to change the setting of any or all channels at predefined times.

An inbuilt audio monitoring and changeover card allows two Delay Masters to be combined as a redundant pair, with an alarm relay closure and automatic changeover in the event of failure of either unit.

Technical Specification

Technical Specification

Audio Input and Output

Four 48kHz 24-bit AES3 or Axia Livewire inputs and outputs
On-screen VU meters
Audio monitoring and changeover card for dual redundancy
Ancilliary Input and Output
IP data delay
Serial data delay
Optional contact closure delay

Monitoring / Changeover

Output stream decoding monitors AES3 frame validity and audio failure
Automatic changeover to standby unit on power or system failure
On-screen status display
Master alarm contact closure
SNMP status and contact closure monitoring


Industrial four-unit rack mount case
Optional inbuilt colour LCD screen with slide out keyboard and mouse
Dual redundant hot- swappable power supplies
RAID-1 (mirrored) swappable hard drives (optionally solid state drives)
64-bit Windows 7 Professional operating system


Available delay: 0-24 hours in 40ms steps (minimum non-zero delay is one second).
Inputs / outputs: 48kHz 24-bit transformer-coupled AES-3 or Axia Livewire IP digital audio.
Delay accuracy: Free-running +/- 500ms, or can be locked to input sampling rate or synchronised to NTP-locked real-time clock
Serial data: 1200–76800 bps, 8 bit, no parity.
IP data: TCP or UDP data via Ethernet connection.
Contact closures: Optional four contact closure inputs and outputs per channel (Axia GPIO supported when used).
Storage: Mirrored (RAID-1) hard drive array, optionally with solid state drives for maximum reliability.
Processor: 64-bit Pentium quad-core
Memory: 4GB RAM
Operating system: 64-bit Windows 7 Professional
Additional features: Hot-swappable dual redundant power supplies. Optional inbuilt LCD screen with slide out keyboard and mouse pad available.

Product Resources

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