Heritage Audio OST 4 V2 500 Series 4-slot rack

The OST-4 V2.0 500 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.

The OST-4 V2.0 enclosure 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-4 V2.0 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-4 V2.0 enclosure, especially mic preamps.

Features:

• On Slot Technology version v2.0.
• Maximum audio rails current: 400 mA per slot, for a total of 1.6 A, 1.8 A non continuous.
• Maximum phantom power current: 140 mA.
• Operating voltage: Universal 100-240 V AC.

US and EU parcels ship via UPS, ETA 1-7 working days from pickup day zero. That also applies to most locations worldwide.

All shipments are fully insured.

Bigger shipments requiring pallets or custom made crates ship to US, CA, JP, CN, AU and other outside of EU locations via DHL Air Freight, ETA is normally approx. 7-14 working days from pickup day zero.

Big shipments inside EU ship via different freight companies, recently mostly via ACE Logistics. Freight forwarders can use different courier companies for deliveries to final destinations.

Palletising and crating time can vary depending on the size of the shipment and packaging queue. We pack all our shipments with great care.

You are most welcome to pick your order up yourself from our Retrosonic Pro Audio showroom, studio and warehouse in Tallinn, Estonia.

We ship worldwide – contact us for a personal shipping quote or any other questions.

VAT (Value Added Tax) can be deducted if you have a company with a valid EU VAT number or if you're based outside of the EU. Non-EU buyers pay all and any import tax and duty as regulated by their local customs.