User manual

www.merging.com/hapi Page 26
Hapi User Manual
Hapi key features
Modular analog interfacing
Hapi allows the user to choose between Analog inputs and Analog outputs and MADI I/O required for
each unit. Hapi provides a total of two universal I/O slots which can accept a combination of Mic/Line
modules and or Line output cards and or a MADI module. Users can configure their Hapi with any
combination.
For instance, in a studio environment, 8 A/D (1X IOC-AD8/P) and 8 D/A (IOC-AD8/P) will allow for 8
inputs from the live room and 8 outputs to feed studio monitoring and foldback to the artist.
Modular Device connectivity
Any of the modules listed below (A/D, D/A, MADI, AES, ADAT/SPDIF, RAVENNA) can be
interconnected in any way the user chooses. Simple and easy routing pages enable the user to source
signal from any module, and send it to any other combination of modules. An A/D Module could feed 8
Channels of AES Outputs. At the same time, it could feed to 8 MADI channels, or even the RAVENNA
stream as well. This is the function that allows the user operate with the Hapi in either a standalone
(Analog to MADI/AES AD/DA) or in RAVENNA Mode, which connects the audio to a RAVENNA
network (described below).
With such a wealth of different outputs, it made sense to apply a “route to” instead of a “route from”
philosophy in the way Hapi presents its routing pages. After an initial learning period, you will
understand that this is a much more efficient way to present so many routing options in an easy to
unfold process. So always ask yourself first which output is being considered and then decide what
input signal will feed that output and you will be offered all logical and valid choices at every step. It also
made sense to limit the granularity of routing options to blocks of 8 channels, as a good compromise
between flexibility and complexity.
AD8 / AD8P Remote controlled Mic/Line A/D module
The AD8 (works up to 192 kHz) and the AD8P (works up to DXD/DSD256) are remote controllable,
extremely high-quality Microphone pre-amplifiers with a switch on each channel to route the signal
through dedicated line level circuitry instead. The remote control is achieved over Ethernet, via the
RAVENNA Port at the back of the chassis. With all standard analogue controls also available via
remote (Phantom power on a “per channel” basis, phase invert, HPF) and a Gain stage reaching from -
10dB all the way up to +60dB, these modules are not only easy to use, but completely transparent to
listen to as well.
DA8 / DA8P Safety Conscious Analogue Line output Modules
The DA8 (works at sample rates up to 192 kHz) and DA8P (works at sample rates up to DSD) are
specifically designed with the user’s speakers in mind. Incorporating analogue mute circuitry, the DA8/P
modules provide protection against spurious transients that may occur during Sample rate changes and
power cycling “clicks” and “pops” which can damage not only speakers, but also the listener’s ears.
When you add to that a noise floor of less than -125dB, these are the ultimate analog outputs for any
monitoring system.
DC power supply options
Your Hapi interface can be fitted with a DC power supply input, this can be used to battery power the
device or as a secondary power input.
The DC power supply option can be used in two way
1- Battery power: The Hapi can be operated from battery, or any external DC adapter provided the
voltage is between 10V and 14V
2- Redundant power supply: The Hapi can be operated in a redundant way when using the
standard AC power inlet and an external 12V DC adapter connected to the DC input of Hapi, in
this configuration either power input can fail or be removed without creating any disruption in
the device’s operation.
MADI (Module)
A MADI module is available and can be fitted in one of the Hapi slots. It provides users with up to 64
channels of MADI I/O for use with the system. The signal sent to the MADI Outputs (both Coaxial and
Optical are available simultaneously) are configurable in blocks of 8 channels and can be sourced from
any other module in the Hapi.
Note: Only one MADI module can be fitted per Hapi, please refer to the MADI module section above.