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Heritage Audio OST-6 Enclosure for 500 Series Modules (6-Slot)
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The Heritage Audio OST-6 is a 6-slot enclosure designed to provide stable power for up to six 500 Series modules for musicians and recording and mixing engineers in mobile-production rigs and home, project, and commercial studios. Its On-Slot Technology enables per-slot linear regulation stages, which isolate the slots and avoid power sharing between modules. Each slot features test LEDs—red for +16V and green for -16V—to indicate proper power status.

It supplies up to 140mA of phantom power and utilizes gold-plated XLR jacks and Edge connectors. Made in the EU with a heavy-gauge steel enclosure and aluminum front panel, it yields tour-worthy durability and sports a built-in carry handle for easy transport. The OST-6 can be mounted in 3 RU of a standard 19” equipment rack via the included rack ears. It ships with the required external power supply.

Accommodates up to six single-slot 500 Series modules
Per-slot linear regulation stages avoid power sharing between modules
Per-slot test LEDs indicate correct +16V and -16V power operation
Up to 140mA of phantom power
Gold-plated XLR jacks and Edge connectors
Heavy-gauge steel enclosure with aluminum front panel
Side-mounted carry handle for easy portability
Includes rack ears for permanent installation

Technical Specifications

Rack Height 3 RU (rack-mountable via attachment of included rack ears)
Inputs 6 x XLR 3-pin female jacks
Outputs 6 x XLR 3-pin male jacks
Internal Connectors 6 x Edge connectors
Maximum Current Audio Rails: 1.6 A per rail or 400 mA per rail per slot (whichever is reached first)
Phantom Power: 140 mA
Operating Voltage 100 to 240 VAC
Power Requirement HA-PSU02 external power supply via XLR 5-pin jack
Dimensions (W x H x D) Without Rack Ears: 9.0 x 5.3 x 6.8" / 228.6 x 133.4 x 171.5 mm
With Rack Ears: 19.0 x 5.3 x 6.8" / 482.6 x 133.4 x 171.5 mm
Weight 9 lb / 4.1 kg

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