Heritage Audio / OST-4 v2.0

A chassis for 500 series modules equipped with ""On Slot Technology"" that maximizes the performance of all modules by providing an independent power supply for each channel.

500 Series Power Rack for up to 4 Modules
The OST-4 v2.0 (500 Series Power Rack) will accommodate any type of 500 Series module, including ""double wide"" modules and high quality Class A and tube designs. It features Heritage Audio's ""On Slot Technology"" to ensure that each channel has maximum protection, filtering and isolation.

While most 500 Series power racks have a simple design that essentially powers all channels in parallel, the OST-4 v2.0 gives each channel its own power supply that is individually regulated and isolated. This allows all installed 500 Series modules to work at their full potential, without one overloading the others to degrade performance. In addition to reduced interference, you can expect better performance in terms of lower self-noise and crosstalk, especially in mic pres. The new Link feature in the v2.0 model also allows you to link any channel to the next channel with the touch of a button.

Of course, like all Heritage Audio products, the OST-4 v2.0 is designed and manufactured with state-of-the-art techniques that make no compromises in sound quality.

Get ready for the ever-expanding world of 500 modules!
500 Series modules are becoming more and more popular. Whether you have a professional or home studio, it's more important than ever to have quality slots.

It's not just a box.
A 500 Series power rack may not look like the most exciting thing in your studio, but you should get something durable, affordable, and worthy of your beloved 500 Series modules ─ something that will cleanly perform and perform at its best!

The OST-4 v2.0 is built in a rugged enclosure that maximizes the potential of your 500 Series modules.

Safer. Cleaner. Wider compatibility.
Experienced engineers know that Class A or tube-based products are ""power hogs."" They can cause the bank to voltage drop and malfunction, or simply not work with standard power racks. OST-4 v2.0 offers broad compatibility with a wide variety of 500 series modules, and is designed to provide robust power to individual modules and prevent interference with adjacent modules.

■Specifications
- Maximum rail current: 400 mA per rail per slot, 1.6 A total (1.8 A discontinuous)
- Maximum phantom power current: 140 mA
- Input voltage: 100 - 240 VAC