OST-10 V2.0 - Professional audio equipment Heritage Audio - Free user manual and instructions

Product Type	500 Series Enclosure (Rack for 500-series modules)
Brand	Heritage Audio
Model	OST-10 V2.0
Number of Slots	10
Slot Technology	On Slot Technology with individual regulated and isolated power supply per slot
Power Supply	External HA-PSU02, universal input 100-240 V AC
Maximum Audio Rails Current	1.8 A per rail overall; 400 mA per rail per slot (whichever first)
Maximum Phantom Power Current	140 mA
Voltage Monitoring LEDs	Per slot: red (+16 V), green (-16 V), and +48 V phantom power indicator
Audio Connections	Gold-plated XLR inputs and outputs (10 each)
Edge Connectors	Gold-plated for reliable contact
Link Feature	Rear panel button to link output of one slot to input of adjacent slot (no patch cables)
Compression Links	Jumpers for compression linking between adjacent slots
Power Switch	Front panel for easy access
Dimensions (W x H x L)	482 mm x 134 mm x 185 mm
Weight	2.5 kg
Construction	Rugged, portable enclosure built at Heritage Audio headquarters in Spain
Compatibility	Accepts all standard 500-series modules, including double-wide, class-A, and vacuum tube designs
Warranty	2-year limited warranty (parts and labor)
Included Accessories	External power supply (HA-PSU02), user manual
Certifications	CE, RoHS (implied by European manufacturing)

Frequently Asked Questions - OST-10 V2.0 Heritage Audio

What is the Heritage Audio OST-10 V2.0?

The OST-10 V2.0 is a 10-slot 500-series enclosure with individual regulated power supplies per slot, designed to house and power 500-series modules while maximizing performance and isolation.

How many modules can I install in the OST-10 V2.0?

It has 10 slots that accept standard 500-series modules, including double-wide modules (occupying two slots).

Does the OST-10 V2.0 require an external power supply?

Yes, it uses the included HA-PSU02 external power supply with universal input (100-240 V AC).

What is the Link feature on the back panel?

The Link button allows you to internally route the output of one slot to the input of the adjacent slot without patch cables. Press to link, release for individual operation.

How do I check if power is reaching each slot?

Each slot has front-panel voltage LEDs: red indicates +16 V, green indicates -16 V, and an additional LED shows +48 V phantom power presence.

Can I use power-hungry modules like class-A or tube designs?

Yes, the OST-10 V2.0 provides up to 400 mA per rail per slot and 1.8 A per rail overall, ensuring compatibility with demanding modules without affecting adjacent slots.

What type of input/output connectors does the enclosure have?

It features gold-plated XLR connectors for both inputs and outputs (10 each) for reliable, low-noise connections.

How do I set up compression linking?

Use the internal jumpers on the rear panel to link compression sidechains between adjacent slots. Refer to the manual for jumper positions.

Is the OST-10 V2.0 rack-mountable?

Yes, it is designed as a 19-inch rack-mountable unit with a 2U height (134 mm). It also features a rugged, portable design.

What should I do if there's no audio output from a slot?

Check if the Link button is engaged (sending output to adjacent slot). Press it again to return to individual mode. Also verify input/output connections and power LEDs.

USER MANUAL OST-10 V2.0 Heritage Audio

500 Series Enclosure

Exterior view of a heritage audio workstation (OST-10 V2.0) with visible circuit board and power indicator (no text or symbols on main body)

USER MANUAL

Thank you for choosing the 500 Series Rack OST-10 v2.0. 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.

TABLE OF CONTENTS

INTRODUCTION	2
CONTENTS	2
DESCRIPTION	3
GETTING STARTED	4
APPLICATIONS	5
SPECIFICATIONS	8
TROUBLE SHOOTING	9
WARRANTY STATEMENT	10
REGISTRATION	10
RECALL SHEETS	11

The OST-10 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-10 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-10 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-10 V2.0 enclosure, specially mic preamps.

A new and exciting feature in the V2.0 model is the Link feature, allowing each channel to be linked over to the next at the push of a button (on back panel), no patch cables required!

As with all Heritage Audio products; the 500 Series OST-10 V2.0 enclosures are built utilizing the most cutting edge methods in manufacturing and design, without ever compromising audio quality or cutting corners — all at the Heritage Audio headquarters in Spain.

The 500 format is here to stay, be set up for it!

With the popularity of 500 Series modules showing no signs of waning, it makes more sense than ever for both professional and home studios alike to have plenty of slots available to house their growing collection of new and old 500 Series toys.

Don't just house your 500 series modules, bring out the best in them!

While a 500 Series enclosure may not seem like the most exciting thing in the studio, you've got to have them. It only makes sense to get one that is durable, not overpriced, compatible with any 500 Series module you may have, and most importantly, one that will bring out the cleanest and very best performance in your gear. With the OST-10 V2.0, you have a perfect solution for housing 500 Series modules in an enclosure which brings out the best of their sonic potential, in a portable, rugged enclosure that won't break the bank.

Safer, cleaner, more compatible!

Many experienced engineers are aware of certain ‘power hungry’ class A or vacuum tube based modules which could cause banks of 500 Series modules to ‘brown out’ or not function, or that simply would not work in some standard enclosures. The OST-10 V2.0 offers the widest range of compatibility with all 500 Series modules, ensuring both that ‘demanding’ modules receive the power they need, and that adjacent modules remain unaffected. Your 500 Series modules have simply never had it so good!

Each slot features test LEDs to verify the correct operation of the power supply (red for +16 V, green for -16 V) as well as +48 V, located on the front panel.

FRONT

1	2	3	4	5
ON SLOT TECHNOLOGYIndividual power per slot	SLOTS (6)On Gold Plated Edge Connectors	COMPRESSION LINKSJumpers used to determine the Compression Linking between adjacent slots	POWER SWITCHOn front panel for easy access	VOLTAGE LEDsVerify that the correct voltage is arriving at each slot ( ± 16 V) as well as +48 V

REAR

1	2	3	4
INPUTSOn Gold Plated XLRs	OUTPUTSOn Gold Plated XLRs	AUDIO LINKSLink Output With Input of Adjacent Slot	EXTERNAL POWER INPUTOn Gold Plated XLR5

graph TD
    A["73 JR II Modules not included"] --> B["MIC PRE"]
    C["ROOM AMBIENCE MICROPHONES"] --> D["1 - MIC INPUT"]
    C --> E["2 - MIC INPUT"]
    C --> F["3 - MIC INPUT"]
    C --> G["4 - MIC INPUT"]
    C --> H["5 - MIC INPUT"]
    C --> I["6 - MIC INPUT"]
    C --> J["7 - MIC INPUT"]
    C --> K["8 - MIC INPUT"]
    C --> L["9 - MIC INPUT"]
    C --> M["10 - MIC INPUT"]
    D --> N["KICK"]
    E --> O["SNARE ↑"]
    F --> P["SNARE ↓"]
    G --> Q["HI HAT"]
    H --> R["TOM 1"]
    I --> S["TOM 2"]
    J --> T["OH - L"]
    K --> U["OH - R"]
    L --> V["AMBIENCE - L"]
    M --> W["AMBIENCE - R"]
    N --> X["OUTPUTS 1-10"]
    O --> X
    P --> X
    Q --> X
    R --> X
    S --> X
    T --> X
    U --> X
    V --> X
    W --> X
    X --> Y["OUTPUTS 1-10"]
    Y --> Z["Line INPUTS"]
    Z --> AA["MONITOR SPEAKERS"]
    AA --> AB["THUNDERBOLT COMPUTER"]
    AB --> AC["Computer"]
    style A fill:#f9f,stroke:#333
    style C fill:#f9f,stroke:#333
    style D fill:#ccf,stroke:#333
    style E fill:#ccf,stroke:#333
    style F fill:#ccf,stroke:#333
    style G fill:#ccf,stroke:#333
    style H fill:#ccf,stroke:#333
    style I fill:#ccf,stroke:#333
    style J fill:#ccf,stroke:#333
    style K fill:#ccf,stroke:#333
    style L fill:#ccf,stroke:#333
    style M fill:#ccf,stroke:#333
    style N fill:#cfc,stroke:#333
    style O fill:#cfc,stroke:#333
    style P fill:#cfc,stroke:#333
    style Q fill:#cfc,stroke:#333
    style R fill:#cfc,stroke:#333
    style S fill:#cfc,stroke:#333
    style T fill:#cfc,stroke:#333
    style U fill:#cfc,stroke:#333
    style V fill:#cfc,stroke:#333
    style W fill:#cfc,stroke:#333
    style X fill:#cfc,stroke:#333
    style Y fill:#cfc,stroke:#333
    style Z fill:#cfc,stroke:#333

graph TD
    A["73 JR II Modules not included"] --> B["OST-10 V 2.0"]
    B --> C["D.I. INPUT MODULE 1"]
    B --> D["D.I. INPUT MODULE 2"]
    B --> E["GUITAR FX PEDAL"]
    B --> F["OUTPUTS 1-2"]
    F --> G["USB - COMPUTER"]
    F --> H["Line INPUTS - AUDIO INTERFACE"]
    I["Heritage Audio® OST-10 V 2.0"] --> J["OUTPUT 12"]
    I --> K["OUTPUT 9"]
    I --> L["OUTPUT 8"]
    I --> M["OUTPUT 7"]
    I --> N["OUTPUT 6"]
    I --> O["OUTPUT 5"]
    I --> P["OUTPUT 4"]
    I --> Q["OUTPUT 3"]
    I --> R["OUTPUT 2"]
    I --> S["OUTPUT 1"]
    T["Power HAFRUCE"] --> U["OUTPUT 10"]
    T --> V["OUTPUT 9"]
    T --> W["OUTPUT 8"]
    T --> X["OUTPUT 7"]
    T --> Y["INPUT 6"]
    T --> Z["INPUT 5"]
    T --> AA["INPUT 4"]
    T --> AB["INPUT 3"]
    T --> AC["INPUT 2"]
    T --> AD["OUTPUT 1"]
    AE["73 JR II SLOT 2"] --> AF["OUTPUT 1-2"]
    AG["73 JR II SLOT 1"] --> AH["OUTPUT 1-2"]

graph TD
    A["LINE OUTPUTS KEYBOARD"] --> B["73 JR II Modules not included"]
    B --> C["OUTPUTS 1-2"]
    C --> D["Line INPUTS - AUDIO INTERFACE"]
    D --> E["USB - COMPUTER"]
    C --> F["OUTPUT 10"]
    C --> G["OUTPUT 9"]
    C --> H["OUTPUT 8"]
    C --> I["OUTPUT 7"]
    C --> J["OUTPUT 6"]
    C --> K["OUTPUT 5"]
    C --> L["OUTPUT 4"]
    C --> M["OUTPUT 3"]
    C --> N["OUTPUT 2"]
    C --> O["OUTPUT 1"]
    C --> P["OUTPUT 0"]
    C --> Q["OUTPUT 1"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333

LINK-EQ

graph TD
    A["CONDenser MIC"] -->|73 JR II & 73 EQ JR Modules not included| B[" Ost-10 V 2.0 "]
    B --> C[" OUTPUT 2 "]
    C --> D[" LINE INPUTS - AUDIO INTERFACE "]
    D --> E[" Activate Link Switch (SLOT 1) "]
    E --> F[" USB - COMPUTER "]
    F --> G[" Line Inputs - Audio Interface "]
    G --> H[" OUTPUT 1 "]
    H --> I[" Line Inputs - Audio Interface "]
    I --> J[" OUTPUT 2 "]
    J --> K[" Line Inputs - Audio Interface "]
    K --> L[" OUTPUT 1 "]
    L --> M[" Line Inputs - Audio Interface "]
    M --> N[" OUTPUT 2 "]
    N --> O[" Line Inputs - Audio Interface "]
    O --> P[" OUTPUT 2 "]
    P --> Q[" Line Inputs - Audio Interface "]
    Q --> R[" OUTPUT 2 "]
    R --> S[" Line Inputs - Audio Interface "]
    S --> T[" OUTPUT 2 "]
    T --> U[" Line Inputs - Audio Interface "]
    U --> V[" OUTPUT 2 "]
    V --> W[" Line Inputs - Audio Interface "]
    W --> X[" OUTPUT 2 "]
    X --> Y[" Line Inputs - Audio Interface "]
    Y --> Z[" OUTPUT 2 "]
    Z --> AA[" Line Inputs - Audio Interface "]
    AA --> AB[" OUTPUT 2 "]
    AB --> AC[" Line Inputs - Audio Interface "]
    AC --> AD[" OUTPUT 2 "]
    AD --> AE[" Line Inputs - Audio Interface "]
    AE --> AF[" OUTPUT 2 "]
    AF --> AG[" Line Inputs - Audio Interface "]
    AG --> AH[" OUTPUT 2 "]
    AH --> AI[" Line Inputs - Audio Interface "]
    AI --> AJ[" OUTPUT 2 "]
    AJ --> AK[" Line Inputs - Audio Interface "]
    AK --> AL[" OUTPUT 2 "]
    AL --> AM[" Line Inputs - Audio Interface "]
    AM --> AN[" OUTPUT 2 "]
    AN --> AO[" Line Inputs - Audio Interface "]
    AO --> AP[" OUTPUT 2 "]
    AP --> AQ[" Line Inputs - Audio Interface "]
    AQ --> AR[" OUTPUT 2 "]
    AR --> AS[" Line Inputs - Audio Interface "]
    AS --> AT[" OUTPUT 2 "]
    AT --> AU[" Line Inputs - Audio Interface "]
    AU --> AV[" OUTPUT 2 "]
    AV --> AW[" Line Inputs - Audio Interface "]
    AW --> AX[" OUTPUT 2 "]
    AX --> AY[" Line Inputs - Audio Interface "]
    AY --> AZ[" OUTPUT 2 "]
    AZ --> BA[" Line Inputs - Audio Interface "]
    BA --> BB[" OUTPUT 2 "]
    BB --> BC[" Line Inputs - Audio Interface "]
    BC --> BD[" OUTPUT 2 "]
    BD --> BE[" Line Inputs - Audio Interface "]
    BE --> BF[" OUTPUT 2 "]
    BF --> BG[" Line Inputs - Audio Interface "]
    BG --> BH[" OUTPUT 2 "]
    BH --> BI[" Line Inputs - Audio Interface "]
    BI --> BJ[" OUTPUT 2 "]
    BJ --> BK[" Line Inputs - Audio Interface "]
    BK --> BL[" OUTPUT 2 "]
    BL --> BM[" Line Inputs - Audio Interface "]
    BM --> BN[" OUTPUT 2 "]
    BN --> BO[" Line Inputs - Audio Interface "]
    BO --> BP[" OUTPUT 2 "]
    BP --> BQ[" Line Inputs - Audio Interface "]
    BQ --> BR[" OUTPUT 2 "]
    BR --> BS[" Line Inputs - Audio Interface "]
    BS --> BT[" OUTPUT 2 "]
    BT --> BU[" Line Inputs - Audio Interface "]
    BU --> BV[" OUTPUT 2 "]
    BV --> BW[" Line Inputs - Audio Interface "]

• On Slot Technology
  • Maximum audio rails current: 1.8 A per rail, or 400 mA per rail per slot, whatever is reached first.
  • Maximum phantom power current: 140 mA.
• Operating voltage: Universal 100-240 V AC.
• Dimensions (W x H x L): 482 mm x 134 mm x 185 mm.
• Weight: 2,5 Kg.

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Illustration of a glowing incandescent light bulb with a stylized 'H' symbol on its side (no text or labels)

PROBLEMS	SOLUTIONS
There doesn’t seem to be any power feeding the OST-10 v2.0.	Make sure the HA-PSU02 has been connected.
No audio seems to be getting to the modules.	Double check that you have correctly connected the Inputs and Outputs for the slot.
There is no signal present at the slot’s Output.	Check to see if the LINK button has been pushed sending the output to the adjacent slot’s Input instead. If so, push again to return to the ‘IND’, individual status for that slot.
There is no signal present at the slot’s Input.	Check to see if the LINK button has been pushed on the slot before, which would send that slot’s output to this slot’s Input instead of the desired signal. If so, push the button again to return to the ‘IND’, individual status fo that slot.
Trying to use several adjacent 500 series modules with just one set of Input and output cables.	Make sure you have inputted into the first slot and activated its ‘LINK’ button to internally direct the signal to the next slot. Also, push ‘LINK’ button for any other modules used. Take the signal from the last slot’s Output connector making sure that slot’s ‘LINK’ is not pushed.

* For any further doubts or questions please get in contact with us at: [e-mail]

LIMITED 2 YEAR WARRANTY

Heritage Audio OST-10 v2.0 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.

Interior of a audio recording studio with multiple heritage audio modules and speaker equipment (no readable text or symbols)

REGISTRATION

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

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www.heritageaudio.com

HERITAGE AUDIO. C/ Alfonso Gómez, 38, 3C. 28037 Madrid – Spain. Tel: [phone]

[e-mail]