Alpine PXA-H100 User Manual download pdf (Page 4)

1. Introduction

This document describes the Intravee interface when used with the Alpine PXA-H100 IMPRINT audio

processor, some features are also available with the PXA-H700, PXA-H701 and PXA-H800 processors.

When a PXA-H100 is connected to the Intravee, the Intravee will emulate the BMW DSP amplifier and

provide simple control via the BMW DSP amplifier menu. More comprehensive setup is performed

through the Intravee on screen menus.

When a BMW radio detects the presence of the DSP amplifier it will switch into DSP mode. In DSP mode

the output level of the radio is fixed at a high value, the tone characteristics are set to flat and balance and

fader are fixed in the centre position. The BMW DSP amplifier, and the Intravee + PXA-H100, become

responsible for changes to volume, tone, balance and fader. Using the BMW radio in this mode provides a

higher quality signal with lower noise floor then using a fixed output stage and variable input.

The settings of the standard Balance and Fader sliders on the BMW Tone menu are automatically

redirected to the PXA-H100. Treble and Bass settings are automatically redirected to the PXA-H100 when

an Imprint Curve has been selected, in this mode most other settings on the PXA-H100 are disabled. When

no Imprint Curve has been selected the Treble and Bass sliders will have no effect.

When using the Intravee, PXA-H100 and a BMW hands free phone or Voice Recognition system, the

Intravee stores two volume levels. One volume level is used for regular audio, the second volume level is

used only while the hands free phone or Voice Recognition prompts are active. You can only adjust the

volume of the setting that is currently active.

2. Connections

Connections to the PXA-H100 are a little more complex than other AI-Net components that are connected

to the Intravee. The PXA-H100 only has audio inputs on both AI-Net ports, in order to enable audio from all

sources and control via the Intravee, a special AI-Net connection is required.

Intravention can supply a special AI-Net breakout box that will allow plug and play connection of the PXA-

H100 to the Intravee, you will also require a line level output from the BMW radio module. We would

recommend using a line level converter from the front speakers of the radio although it is possible to use

the pre-amplifier outputs inside the radio module. The AI-Net breakout box has three AI-Net ports and a

pair of RCA line level inputs.

There are two ways that the H100 can be connected to the Intravee and other AI-Net devices, the

connection mechanism you decide upon depends on the radio module type, the absolute quality level you

require and how important Navigation Audio commands are to you.

2.1. All Audio through the Head Unit AI-Net port

In this mode all audio goes into the radio module, from various standard sources, then comes out and into

the Head Unit AI-Net port on the PXA-H100.

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Alpine PXA-H100 User Manual Page 4