Heritage Audio OST-8 ADAT 500 Modules 8-Channel AD-Converter User Manual

Heritage Audio OST-8 ADAT 500 Modules 8-Channel AD-Converter

The OST-ADAT is a rack that can hold up to eight 500 series modules. It features a premium 24-bit 192K ADC, which means it can be used as a standalone analog to digital converter. The rack is built using state-of-the-art manufacturing and design methods without compromising audio quality.

Product Getting Started

The front panel of the OST-ADAT rack features individual power per slot, eight slots on gold-plated edge connectors, compression links jumpers, ADC input switches 1-8, frequency selector for ADC, frequency indicator, and voltage LEDs.

The rear panel features BNC in & out connector outputs for word clock syncing, 25-pin D-SUB(DB25) connector analog to digital converter for additional external line inputs, 25-pin D-SUB(DB25) connector outputs line outputs, ADAT-S/MUX optical ports outputs on digital ADAT format, external power input HA-PSU02 on gold-plated XLR5, inputs on gold-plated XLRs, audio links link output with the input of adjacent slot, 75 ohm TERM button push to activate termination, and 25-pin D-SUB(DB25) connector inputs line inputs.

Product Applications

The OST-ADAT rack can be used in various applications. In drum recording setup 1, you can use the mic inputs kick, snare, hi-hat, tom1, tom2, oh-L and oh-R and connect them to the OST-ADAT rack. In drum recording setup 2, you can select the out position and activate the term button. You can use word clock in, ADAT out, ADATin, word clock out, mic inputs kick, snare, hi-hat, tom1, tom2, oh-L and oh-R, select ext position and connect it to a Thunderbolt computer and monitor speakers. In mixed input recording, you can select in position 1-4, D.I. input module 1 and 2, outputs L&R keyboard D.I. input module 3 & 4, activate the term button, connect guitar FX pedal, word clock in, select ext position 5-8 and preamp outputs connected to ADC ext 5-8.

INTRODUCTION

Thank you for choosing the OST-8 adat. Heritage Audio is dedicated to bringing you ´the sound of yesterday for tomorrow´. We specialize in capturing that unique, enticing sound that everybody has fallen in love with. For years engineers, producers and musicians have been yearning for that classic vibe. Usually the only option is to search for old, used original equipment that is almost always in a questionable state of operation. This brings with it a whole lot of other issues, making the experience less than desirable. Not to mention the very high prices asked for this equipment, which makes them virtually unobtainable for the great majority. Now it´s possible to obtain that same sound with a brand new piece that will give you all the problem- free, heavy-duty use you´ll need for years of music making history.

Peter Rodriguez
CEO
Heritage Audio – Madrid, Spain

© 2022 Heritage Audio S.L. is the sole owner of the copyright of all information and drawings contained in this manual which are not to be copied or reproduced by any means or disclosed in part or whole to any third party without written permission.

Heritage Audio reserves the right to alter specifications without notice. The information in this manual has been carefully checked and is believed to be accurate at the time of publication. However, no responsibility is taken by us for inaccuracies, errors or omissions nor any liability assumed for any loss or damage resulting either directly or indirectly from use of the information contained within it.

DESCRIPTION

The OST-8 adat 500 series enclosure is designed for racking any and all 500-series modules and devices, including ‘double wide’ modules and even the most demanding class-A and vacuum tube designs, and connect them to your existing audio interface. It features Heritage Audio’s On Slot Technology, providing maximum protection, filtering, and isolation to each channel. While most 500-series enclosures on the market have a relatively simple power supply design essentially feeding every channel in parallel, each channel of the OST-8 adat enclosure has its own power supply, individually regulated and isolated from the rest. This ensures that every 500-series module installed will perform at its peak potential, and that no ‘power hungry’ or even a faulty module will compromise the performance of another. In addition to reducing interference, many 500-series devices actually exhibit lower self- noise and better
performance when racked in the OST-8 adat enclosure, specially mic preamps.

The best part is we have incorporated a premium analog to digital converter to send your signals on to your DAW as easily as possible. This high quality, premium ADC is 24Bit and offers selectable internal sampling frequencies variable from 44.1k to 192k in addition to being externally syncable by WordClock. This all takes place using just one ADAT Lightpipe cable. One of the neatest features of the unit is the ability to individually, per channel, decide whether the signal converted and sent to the DAW comes directly from the corresponding input (non-processed signal), after the 500 series module (processed signal) or from an external source. What this allows you to do is send your ´500 Series´ processed signal out to another signal processor and then return it to the unit so it can be converted digitally and sent along to your DAW. This can really come in handy if you need a bit of external rack EQ or compression for more control before the digital conversion. This actually means you have 3 selectable sources for each of the eight converters, a seemingly small detail that can really make a big difference when you´re knee deep in the mix or session and don´t have time to spare.
This also means that you can use the OST-8 adat as a stand-alone converter and gradually add 500 modules at your convenience to setup your ideal rig. So for those times when all you need is a top-of-the-line analog to digital converter, look no further, you already have it right here.

All the inputs and outputs are provided on gold plated XLRs with LINE inputs and outputs also being offered on DB25 connectors for convenience. These DB25 connectors follow the TASCAM protocol for wiring. The alternative 8 External Inputs for the converter are also available on a DB25 connector. Then, of course, are the format specific connectors for ADAT (two of them for SMUX possibilities) and BNC WordClock Input and Output.

Another new and exciting feature in the OST-8 adat is the Link option, allowing each channel to be internally routed over to the next at the push of a button (via back panel), no patch cables required!
As with all Heritage Audio products; the 500 Series OST-8 adat enclosures are built utilizing the most cutting edge methods in manufacturing and design, without ever compromising audio quality or cutting corners.

GETTING STARTED

APPLICATIONS

DRUM RECORDING
SETUP 1

SETUP 2

MIXED INPUT RECORDING

VOCAL-LINKED EQ PROCESSED/UNPROCESSED

This configuration would be used to record two tracks of the same signal, one straight from the Preamp and the other processed through a 500 series module. In this case we´re using an EQ for processing.

MIXING INSERT SETUP 1

MIXING INSERT SETUP 2

STAND ALONE CONVERTER

WIRING FOR DB25 CONNECTORS

All DB25 multi pin connectors are TASCAM protocol. This same protocol is also used by AVID amongst many others, and is a follows:

Pin-out for TASCAM DB25 8 Channel Balanced Connector

• H = HOT
• C = COLD
• G = GROUND

The list of the DB25 connectors used and their corresponding channels are as follows:

It is worth noting that, in order to avoid ground loops, the DB25 ground connections are lifted on the OST-8 adat side, leaving the ground paths of your DB25 snakes only acting as shields and preventing any current returns.

ANALOG I/O

• XLR Inputs & Outputs: Gold Plated Balanced +4dB Connectors.
• DB25 : 25 Pin Balanced +4dB Eight Channel Connectors.
• On Slot Technology
• Maximum audio rails current: 1.8A per rail, or 400mA per rail per slot, whatever is reached first.
• Maximum phantom power current: 140mA.
• Operating voltage: Universal 100-240 VAC.

Dimensions/Weight

• Dimensions (W x H x L): 200mm x 134mm (3U) x 482mm
• Weight: 4.715 Kg

DIGITAL CONNECTIONS

• Connector Type: Optical TOSLINK JIS F05.
• Format: ADAT Digital Lightpipe with S/MUX.
• Supported Sample rates (kHz): 44.1, 48, 88.2, 96, 176.4, 192.
• Channel Assignments @ 44.1 kHz, 48 kHz: Port 1 = Channels 1 – 8, Port 2 = 1 – 8 (mirrored).
• Channel Assignments @ 88.2 kHz, 96 kHz: Port 1 = Channels 1 – 4, Port 2 = Channels 5 – 8.
• Channel Assignments @ 176.4 kHz, 192 kHz: Port 1 = Channels 1 – 2, Port 2 = Channels 3 – 4.

Word Clock

• Connector Type: BNC.
• Word Clock Input Termination: 75 Ohms, switchable.

Synchronization Sources

TROUBLESHOOTING

WARRANTY STATEMENT

LIMITED 2 YEAR WARRANTY

• Heritage Audio OST-8 adat is warranted by Heritage Audio SL to be free from defects in materials and workmanship for the period of 2 years to the original purchaser. In the event of such defects, the product will be repaired without charge or, at our option, replaced with a new one if delivered to Heritage Audio prepaid, together with a copy of the sales slip or other proof of purchase date. The warranty excludes problems due to normal wear, abuse, shipping damage or failure to use the product in accordance with the specifications.
• Heritage Audio shall not be liable for damages based upon inconvenience, loss of use of the product, loss of time, interrupted operation or commercial loss or any other damages, whether incidental, consequential or otherwise.
• This warranty is not transferable.
• Heritage Audio and the Heritage Audio “H” logos are registered Trademarks owned and/or licensed by Heritage Audio.

Please visit our website: https://heritageaudio.net/registration/

RECALL SHEETS

www.heritageaudio.com

CONTACT

• ADDRESS: HERITAGE AUDIO. C/ Alfonso Gómez, 38, 3C. 28037 Madrid – Spain.
• Tel : +34 917 266 189
• info@heritageaudio.com

References

• Heritage Audio
• Heritage Audio

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