Metric Halo : ULN-8 mkIV Metric Halo

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ULN-8 mkIV Audio Interface with 8 Mic Preamps and Plug-In Bundle

Whether you are on location, in the studio or the mastering room, the ULN-8 mkIV has what it takes for you to get the job done.

 

ULN-8 mkIV is built on Metric Halo’s core 3d Technology, so it interoperates seamlessly with all existing MH 3d interfaces.

 

Preamps

The ULN-8 mkIV includes 8 channels of Metric Halo’s renowned ULN-R preamps. These boutique preamps are famous for their pristine, low-distortion, completely unveiled sound.

 

The ULN-R preamp provides up to 90 dB of digitally-controlled analog gain in precisely recallable 0.5 dB steps. Each input supports independently switchable P48 phantom power.

 

         The combination of the super transparent ULN-R preamp and Metric Halo’s exclusive insertable Character Component Modeling Processing provides flexibility and sound quality that’s unavailable on any other device. You can transition from a wire-with-gain pre to a gooey tube pre or anything in between; every input can have the right Character for the sound you want.

 

        The preamp input path on the ULN-8 mkIV always has preamp gain control and has DC blocking for the phantom power, it also supports input levels of up to +20dBu with no fidelity reducing pads, so you can handle high SPL with sensitive mics as well as you can handle extremely low SPL with insensitive mics (like ribbon mics and low output dynamics) while maintaining ultra-low noise.

The high maximum input level of +20dBu also means that you can use the mic pre input path as an alternative line input path. This feature can be used with the monitor controller to access an additional 8 selectable analog inputs as external sources.

 

        The ULN-8 mkIV input path features an integrated analog send (pre A/D converter) which allows the unit to be used as remote controlled analog preamp. MHLink connectivity and control means that your preamps can be really remote (up to 100m away from your control interface) when you need them to be.

 

       The preamps also offer a send/return mode where the amplified signal from the preamp is sent to the analog send and the line input is used for the return to the A/D converter - this allows you to patch analog processing between the preamp and the converter. Finally, you can use the analog send to provide the pre-amplified signal to a backup recording or mixing system; this is a fully analog split that represents a true backup signal with no digital dependencies.

 

Monitoring

        Monitoring is critical to the production process at every stage; you need to be able hear exactly what you are working on. Your monitor chain will be limited by the weakest link in the chain. The ULN-8 mkIV integrates a transparent digitally controlled analog monitor controller to ensure that you can connect directly to your reproduction chain without having to reduce the fidelity of your signal with an inferior monitor control system.

 

       mkIV hardware includes a relay driven shunt mute circuit on all the analog outputs that prevents transients from getting into your power amps and speakers. The mute is designed to be completely out of the circuit under normal monitoring operations. It automatically protects your monitors during power cycles and sample rate changes.

 

      The Monitor Controller in the ULN-8 mkIV provides sophisticated monitor control features that are only available in dedicated monitor controllers that surprisingly cost more than the ULN-8 mkIV.

These features include:

        In addition to all these high-end features, the MH Monitor Controller provides unique support for per-output-path configurable signal processing including EQ, Bass Management and protective limiting. Each output path can have its own signal processing, even if the paths share speakers. This allows you to configure alternate monitoring setups with one monitoring system (for example, you could configure the signal processing to provide a band-limited monitoring path or a path that lacks subwoofer reinforcement).

Each ULN-8 mkIV includes a high quality headphone amplifier with dedicated D/A conversion (which is the same quality as the primary D/As in the system), and digitally controlled analog gain control. So you don’t need to add a headphone amp to your system. By default the headphones are configured as a parallel Cue output multed from the Monitor Controller, but you can drive the headphones with an independent mix or you can make them an alternate output for the monitor controller.

 

USB

Every mkIV unit includes an industry standard USB-C port that provides a device port featuring 3 interface endpoints:

The Audio Class and MIDI Class endpoints support industry standard protocols and allow the mkIV to be used with the built-in drivers of any USB host that supports the standard classes.

 

You can transport audio and MIDI to and from computers running macOS, Windows 10 & 11, or Linux without installing a custom driver.

 

          You can transport audio and MIDI to and from mobile devices (and embedded devices) that don't allow the installation of custom drivers, as long as the devices provide built-in Audio and/or MIDI class support. At present iOS devices (including iPhone and iPad), Android devices (phones and tablets) and AKAI MPC have the appropriate class drivers included.

 

MIOConsole3d also controls the unit over USB so you can connect your computer with one cable.

 

SCP

         Have you ever wanted to connect an iPad to your main studio system? How about dedicating an older computer you have laying around to running a VI or a Sampler? What about when a client or collaborator comes in with their laptop and wants to run audio into your system? With mkIV and SCP, you can just connect any of these devices right into your system without having to add another interface just for that purpose.

 

mkIV supports explicit routing to and from the USB connector on any unit in the MHLink chain. When used in this way the USB ports are referred to as Satellite Computer Ports.

 

        This feature allows you to integrate audio from multiple USB host devices (computers, phones, tablets, MPCs, etc.) without having to purchase additional interfaces. It automatically keeps your devices synchronized with your system and provides device to device routing as well as integrated mixing and processing.

 

Features:

8 Channels of stunning 192k A/D converters

 

8 Channels of stunning 192k D/A converters

2 Channels of stunning 192k D/A converters with integrated headphone amp

4 Channels of Exceptional Remote Controllable Ultra-Low-Noise Clickless Mic Preamps

Analog Send/Return architecture for analog access to preamps (pre A/D)

2 Channels of Exceptional DI inputs suitable for instrument or turntable inputs

Integrated Surround Monitor Controller

8 Channels of 192k capable AES Inputs and Outputs

What’s Included in the Package