Cranborne Audio N22H User Manual
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Cranborne Audio N22H User Manual

Reference-grade headphone amplifier, cat 5 snake, and c.a.s.t. breakout box.
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N22H - Reference-Grade Headphone Amplifier, Cat
5 Snake, and C.A.S.T. Breakout Box.
User Manual

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Summary of Contents for Cranborne Audio N22H

  • Page 1 N22H - Reference-Grade Headphone Amplifier, Cat 5 Snake, and C.A.S.T. Breakout Box. User Manual...
  • Page 2 Cranborne Audio, for us, means so much more than metal boxes with components in them. These are our labours of love that embody and demonstrate our demand for excellence. By distilling what matters and putting our soul into these tools, we hope to help other people make magic and express themselves, and in some way, become part of our Cranborne Audio family.
  • Page 3 It doesn’t stop there. We built our C.A.S.T. system into N22H to allow it to be positioned anywhere in your recording space using a single, shielded Cat 5e, Cat 6, or Cat 7 cable. With a range of 330ft/100m, your N22H serves as the ideal solution for convenient headphone distribution, or as a connectivity hub for mic/line sources as an all-analogue, Cat 5e snake.

  • Page 4: Table Of Contents

    C.A.S.T. Warnings Using C.A.S.T. with 48v Phantom Power Application Guides Standalone Reference-Grade Headphone Amplifier Using N22H with Camden EC2 Remote Monitoring With N22H and N22 Daisy Chaining N22H Real-World N22H Battery Life Tests Audio Technica ATH-M50x (38Ω) Shure SE215 (17Ω)
  • Page 5 Electromagnetic Compatibility Environmental Warning: N22H’s Headphone Output is extremely loud! Prolonged exposure to loud music can cause permanent hearing loss. Please exercise caution when using N22H and reduce the Headphones Level Control [1] when listening for long periods of time.

  • Page 6: Getting Started

    Output of another C.A.S.T.-enabled device. Note: The C.A.S.T. IN port is covered using a Cat5 plug. Only remove this plug when N22H is to be used with a C.A.S.T. OUT of another device. [6] Source Switch: Selects the input source of N22H’s [13] C.A.S.T.

  • Page 7: Package Contents

    Package Contents So now your N22H is out of it’s packaging, you’re probably itching to get it powered on and making music! Before you get started, please read the sections below that will help guide you through the process of getting your N22H setup, plugged in, and ready-to-use as quickly as...

  • Page 8: Powering Procedures

    9v battery fly lead. Carefully connect the Battery terminals to the push-fit battery connector, tuck the loose leads back inside N22H, and locate the battery into the cavity. Once the battery is secure and the fly lead is hidden away in N22H, refit the Battery Cover [9] and tighten the thumb screw.

  • Page 9: Using Simultaneous Battery And External Power Supply

    Using Simultaneous Battery and External Power Supply Both the battery and external power supply can be connected to N22H at the same time without causing any damage to the internal circuitry - just like a guitar pedal. The Power Inlet [11] takes priority when connected to the mains and the internal battery will not drain when mains power is connected.

  • Page 10: Hardware Setup: Standalone Mode

    If using mains power, N22H will power on automatically when power is detected. Once connected, stereo line sources passed into N22H’s inputs will be sent directly through to the headphone amplifier for reference-grade monitoring. Adjust Headphone Level [1] to taste.

  • Page 11: Hardware Setup: C.a.s

    Once connected, Mic/Line sources connected to N22H will travel through the C.A.S.T. connection and arrive at the inputs of the device for processing, whilst the mix created on the other C.A.S.T. device arrives at N22H’s Headphone Output [2] for monitoring. Adjust the Headphone Level [1] to taste.

  • Page 12: Feature Overview

    ⅛” jack to a larger ¼” jack. Splitters and headphone extenders can be used with N22H but please exercise caution when connecting them to N22H as Improper connections can cause damage to the unit or degrade N22H’s headphone performance.

  • Page 13: Outputs [3]

    Outputs [3] of N22H receive the same signal from the C.A.S.T. system. In the above diagram, the C.A.S.T. Output [14] of N22H is connected to the C.A.S.T. Input of an N22 using a shielded Cat 5e, Cat 6, or Cat 7 cable.

  • Page 14: Inputs [4]

    In the above diagram, the C.A.S.T. Output [14] of N22H is connected to the C.A.S.T. Input of an N22 using a shielded Cat 5e, Cat 6, or Cat 7 cable. Audio connected to the Inputs [4] of N22H (or any other C.A.S.T.

  • Page 15: Width Switch [5]

    (when set to ‘Inputs’). C.A.S.T. The Source Switch [6] should be set to C.A.S.T. when N22H is being used as part of a C.A.S.T. system. In this mode, the headphone amplifier will receive the audio signal incoming from C.A.S.T.

  • Page 16: Battery Low Indicator [7]

    The Power Indicator [8] lights Blue when N22H is Powered On and ready for use. When N22H is powered via an external power source via the Power Inlet [11], the Power Indicator will light up indicating N22H is Powered On until the Power supply is switched off.

  • Page 17: Power Mode Switch [10]

    Use a fingernail, guitar pick, or the botched edge of the battery cover to move the Power Mode switch to the correct position. Once the desired Power Mode is selected, ensure the Battery wires are hidden away inside N22H, refit the Battery Cover and tighten the thumb screw.
  • Page 18 Power Inlet [11] The Power Inlet [11] on N22H is required to power N22H from the mains when battery power is not required. N22H can be powered using the supplied power adapter, or any compatible 3rd party power source commonly used for guitar pedals including multi-output isolated supplies.

  • Page 19: C.a.s.t

    Each C.A.S.T. connection on a Cranborne Audio product features unique optimisation to ensure that the maximum signal integrity is transmitted over shielded Cat 5, Cat 6, and Cat 7 cables for distances of up to 100m(330ft) without high-end roll-off and with very low-crosstalk.

  • Page 20: C.a.s.t. Wiring

    48v Phantom Power will not pass through correctly. Any damage caused to the unit as a result of unsupported cabling is not covered under the Cranborne Audio warranty. C.A.S.T. Wiring Below is the wiring table that is used in both TTRR Output and RRTT Input paths of C.A.S.T.

  • Page 21: C.a.s.t. Warnings

    C.A.S.T. is designed to be a simple, plug and play solution for total cable management however there are a number of warnings that you should heed in order to prevent causing damage to your Cranborne Audio product or instrument/device connected to each end. Do NOT connect a C.A.S.T.

  • Page 22: Using C.a.s.t. With 48V Phantom Power

    XLR on the other end - just like a normal analogue snake. In the above diagram, N22H is connected to an N22 as a remote stagebox via C.A.S.T. with an audio interface or 3rd party preamp with full 48v Phantom Power support.
  • Page 23 In the above diagram, N22H is connected to a 500R8 as a remote stagebox via C.A.S.T. with full 48v Phantom Power support. Connect the C.A.S.T. Output of N22H to the C.A.S.T. Input of 500R8/500ADAT. 2. Set the source switch of 500R8/500ADAT to receive C.A.S.T.

  • Page 24: Application Guides

    Application Guides Standalone Reference-Grade Headphone Amplifier Even without using C.A.S.T., you can still use N22H as your new standalone, reference headphone amplifier in the studio or on stage whilst benefiting from its superior performance. You can connect N22H to devices such as mixing consoles, audio interfaces, keyboards, CD players, 500 series racks, outboard hardware - any device with line-level outputs.
  • Page 25 If using mains power, N22H powers on automatically when power is detected. Once connected, stereo line sources passed into N22H’s inputs will be sent directly through to the headphone amplifier for monitoring. Adjust headphone level [1] to taste. Using N22H instead of the headphone outputs of your interface allows you to upgrade the headphone monitoring quality of your existing setup and benefit from more power and higher...

  • Page 26: Using N22H With Camden Ec2

    2. Connect Camden EC2’s C.A.S.T. Output to the C.A.S.T. Input on N22 using a shielded Cat 5e, Cat 6, or Cat 7 cable. 3. On N22H, set the Source Switch [6] to C.A.S.T. and connect your headphones to the Headphone Output [2].
  • Page 27 This mix will then be sent through C.A.S.T. and to the Headphone output on N22H. With this setup, you are able to position Camden EC2 in your control room and use N22H in the live room/vocal booth as a remote stagebox for your artist to connect their microphones and headphones.

  • Page 28: Remote Monitoring With N22H And N22

    This hardware setup diagram will get N22H connected to a passive N22 for advanced remote headphone monitoring and stagebox connectivity. 1) Connect N22H’s C.A.S.T. Output [13] to the C.A.S.T. Input of N22 using shielded Cat 5e, Cat 6, or Cat 7 cable.

  • Page 29: Daisy Chaining N22H

    Set the Source Switch [6] of the 3nd N22H to C.A.S.T. You can safely connect up to 4 N22H in this format before you may begin to hear extra distortion and frequency roll off due to the impedance being halved each time a unit is added.

  • Page 30: Real-World N22H Battery Life Tests

    Below are some tests that we run during development when optimising the Battery life performance of N22H. It is worth noting that it is easy to make any headphone amp last a long time under battery power - wireless IEM beltpacks have been doing this for years, but it is very difficult to power a reference-grade...

  • Page 31: Technical Specifications

    Technical Specifications All specifications are typical performance unless otherwise noted. All specifications are subject to change at any time. Tested with Audio Precision APx555. Headphone Amplifier (High Power Mode) Test Signal Path APx555 (Line Out) - Input 1-2 - Headphone Output - APx555 (Line In) Max Input Level +28dBu Input Impedance...
  • Page 32 Actual battery life will vary depending on battery type being used, headphone impedance/sensitivity, source material and it’s frequency content, as well as overall headphone volume. Test Signal Path 500ADAT C.A.S.T. Input - N22H C.A.S.T. Output - Headphone Output 1h = Battery Low Indicator, 2h = Unit Off Audio Technica ATH-M50x (38Ω)

  • Page 33: Safety Information

    Do NOT modify this unit, altercations may affect performance, safety and/or international compliance standards. Cranborne Audio does not accept liability for damage caused by maintenance, repair or modification by unauthorized personnel.

  • Page 34: Ce Certification

    CE Certification This unit is CE compliant. Note that any cables supplied with Cranborne Audio equipment may be fitted with ferrite rings at each end. This is to comply with the current regulations and these ferrites should not be removed.

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