[bbfoto]

Unfortunately the Android mobile app for this DSP isn't on the Google Play Store yet. The iOS mobile app is listed and available on the Apple app store. HOWEVER, it is for iPhone only and not available or optimized for the iPad. Hopefully that will change.

‎HDP-D90

‎This is a mobile phone tuning APP for high-quality audio processor, which is used for the vehicle DSP product HDP-D90. Connect with the device via Bluetooth, support both Chinese and English.

apps.apple.com

This is the STATUS line afterall, so my questions regarding the DSP are:

Allpass filters?
High- and Low-Shelf Filters?
Variable Phase?

View attachment 342935
View attachment 342934

Specs say (2) Rear USB Inputs and (1) Front USB Input. ^Looks like a rubber door to cover the Front USB port when not in use.


In lieu of the $1400 HDS-990 head unit controller & remote brain box, I would probably just buy a good DAP to connect directly to the DSP. I don't know too many here who would find the 4 x 25w internal amplifier as adequate. And the Input Matrix/Mixer should be available via the DSP. The $180 Audison B-Con can provide the "Hi-Res" wireless BT Streaming with analog or digital output.

For the price, I'm more interested in the STATUS Component Speaker Sets more than anything else.

 

[bbfoto]

OK, someone help me determine how the 12 channel amp/DPS would work with the factory 19 channel Harmon Kardon system in my TRX. The factory amp does some crazy things with sounds throughout the car. Like collision warning sounds, message notification sounds and things like that. I believe that I read somewhere that I would select 12 channels(high/speaker level) out of the factory amp directly into this amps high level inputs. What is the wattage conversion to voltage as the unit says "12-channel high-level harness (handles up to 18Vrms)"? Then I could just run 3-way fronts 2-way center and coax rears in the door and leave the to high rear channels off. By doing so am I to believe that the factory head and system would work as if nothing has been changed or will I need to add something else to the system for this to be the case?

Here is the mathematical formula to determine Watts from A/C voltage or vice versus depending on the Resistance or Ohm rating of the speakers:

P=V^2/R

...where "P" equals Power in Watts, "V" equals A/C Voltage, and "R" equals Resistance (or the Impedance/Ohm Load of the Speaker or Subwoofer). If you insert 18V into the equation above, for 4-ohm speakers it results in about 80 watts. Assuming that your OEM speakers are 4-ohm, 80 watts would be the maximum High-Level Input Power that the Alpine DSP can handle from your OEM amplifier. This would obviously change if your OEM amplifier is designed to drive 2-ohm, 6-ohm, or 8-ohm speakers, etc.

I'm assuming that you want to Upgrade your OEM Factory Speakers to better Aftermarket Speakers plus DSP and better amplification for them?

For your HK system in your TRX, you would identify all of the OEM amplifier's High-Level output channels that contain the Warning Chimes, BT hands-free audio, NAV audio prompts, parking sensor/lane departure beeps, etc that you want to retain, and use the Alpine DSP's Input Mixer Matrix to feed those individual channels into the High-Level Inputs of the Alpine DSP, then assign the respective High-Level input channels to the DSP's appropriate OUTPUT channels and the respective speakers that you want each OEM prompt/warning to play through.

In the Input Mixer Matrix you can individually adjust the levels of each OEM warning chime or audio prompt so that they play at an appropriate level in relation to your aftermarket music playback source.

You would then connect the outputs of your aftermarket audio music playback source (line level RCA or digital) to the appropriate inputs on the Alpine DSP/amp and assign them in the Matrix Mixer to the appropriate output channels. The audio from both the Aftermarket Source and the OEM Source can be "mixed" together to come out over the same channels and speakers concurrently.

I don't know yet how or if the Alpine DSP system could automatically mute the aftermarket source's music playback when an OEM audio prompt or warning chime starts playing, i.e. when NAV prompts play, or when you pick up a hands-free BT call through the OEM system and want the music playback to mute. You'd probably have to manually turn down the volume on your aftermarket music playback source during the call, and NAV audio prompts might be drowned out by the music. If you can, keep the OEM prompts/warnings playing through OEM speakers that you are not using for the aftermarket portion of the SQ audio system, i.e. front center and secondary rear speakers.

Obviously, you are limited to the number of input and output channels of the Alpine DSP/amp, so as you said, you'd have to give up some of the OEM speakers and potentially "re-assign" some of the OEM audio or warning prompts to come out of different speakers.

IMO, all you would really ever need for a true "2-channel stereo" SQ music playback system are 3-way L&R front, plus 1-way L&R rear (3.5"-5.25" midrange), plus 1 channel for a subwoofer(s)...so 9 total DSP output channels.

If you want to set up a "two seat" SQ car with good imaging from both front seats, you would need at least 1 more channel for a 2-way passive coaxial center speaker, AND a DSP with a proper center channel upmixer, which I don't believe this Alpine DSP has.

 

[Problemhouston]

Here is the mathematical formula to determine Watts from A/C voltage or vice versus depending on the Resistance or Ohm rating of the speakers:

P=V^2/R

...where "P" equals Power in Watts, "V" equals A/C Voltage, and "R" equals Resistance (or the Impedance/Ohm Load of the Speaker or Subwoofer). If you insert 18V into the equation above, for 4-ohm speakers it results in about 80 watts. Assuming that your OEM speakers are 4-ohm, 80 watts would be the maximum High-Level Input Power that the Alpine DSP can handle from your OEM amplifier. This would obviously change your OEM amplifier is designed to drive 2-ohm, 6-ohm, or 8-ohm speakers, etc.

I'm assuming that you want to Upgrade your OEM Factory Speakers to better Aftermarket Speakers plus DSP and better amplification for them?

For your HK system in your TRX, you would identify all of the OEM amplifier's High-Level output channels that contain the Warning Chimes, BT hands-free audio, NAV audio prompts, parking sensor/lane departure beeps, etc that you want to retain, and use the Alpine DSP's Input Mixer Matrix to feed those individual channels into the High-Level Inputs of the Alpine DSP, then assign the respective High-Level input channels to the DSP's appropriate OUTPUT channels and the respective speakers that you want each OEM prompt/warning to play through.

In the Input Mixer Matrix you can individually adjust the levels of each OEM warning chime or audio prompt so that they play at an appropriate level in relation to your aftermarket music playback source.

You would then connect the outputs of your aftermarket audio music playback source (line level RCA or digital) to the appropriate inputs on the Alpine DSP/amp and assign them in the Matrix Mixer to the appropriate output channels. The audio from both the Aftermarket Source and the OEM Source can be "mixed" together to come out over the same channels and speakers concurrently.

I don't know yet how or if the Alpine DSP system could automatically mute the aftermarket source's music playback when an OEM audio prompt or warning chime starts playing, i.e. when NAV prompts play, or when you pick up a hands-free BT call through the OEM system and want the music playback to mute. You'd probably have to manually turn down the volume on your aftermarket music playback source during the call, and NAV audio prompts might be drowned out by the music. If you can, keep the OEM prompts/warnings playing through OEM speakers that you are not using for the aftermarket portion of the SQ audio system, i.e. front center and secondary rear speakers.

Obviously, you are limited to the number of input and output channels of the Alpine DSP/amp, so as you said, you'd have to give up some of the OEM speakers and potentially "re-assign" some of the OEM audio or warning prompts to come out of different speakers.

IMO, all you would really ever need for a true "2-channel stereo" SQ music playback system are 3-way L&R front, plus 1-way L&R rear (3.5"-5.25" midrange), plus 1 channel for a subwoofer(s)...so 9 total DSP output channels.

If you want to set up a "two seat" SQ car with good imaging from both front seats, you would need at least 1 more channel for a 2-way passive coaxial center speaker, AND a DSP with a proper center channel upmixer, which I don't believe this Alpine DSP has.

Thank you sir. I don't believe that the factory system is anywhere near 80 watts so I should be good there. I didn't realize it until you started to name all of the different chimes and sounds that the factory makes. But I believe that most of the sounds are coming from the front speakers so If I replace them all with the exception of the rear speakers in the headliner I should be good. Now the problem will be finding matching drivers to fit in all of the speaker locations throughout the truck. There are 19 speakers but really only 11 speaker locations because of the coax configuration on a lot of the drivers.

 

[bbfoto]

Thank you sir. I don't believe that the factory system is anywhere near 80 watts so I should be good there. I didn't realize it until you started to name all of the different chimes and sounds that the factory makes. But I believe that most of the sounds are coming from the front speakers so If I replace them all with the exception of the rear speakers in the headliner I should be good. Now the problem will be finding matching drivers to fit in all of the speaker locations throughout the truck. There are 19 speakers but really only 11 speaker locations because of the coax configuration on a lot of the drivers.

Watch the following video starting at 26:40 for OEM integration features:

 

[Problemhouston]

Watch the following video starting at 26:40 for OEM integration features:

Was able to watch this video and the more in-depth video about the 2DSP units Alpine has. I think the D90 will work well as the core of my system. Now I just need to figure out speaker configuration and fitment. Thank you so much for your help.

 

[bbfoto]

Was able to watch this video and the more in-depth video about the 2DSP units Alpine has. I think the D90 will work well as the core of my system. Now I just need to figure out speaker configuration and fitment. Thank you so much for your help.

Cool. The Helix line of DSP/amps as well as the existing and forthcoming Arc Audio and Audison Forza DSP/amps have similar OEM integration features as well as "Hi-Res" throughput.

The main thing you'll want to determine is How Many Input Channels you'll need to properly mix, sum, or implement the OEM audio prompts and warnings to your aftermarket system. And of course how many output channels you need for your intended setup.

 

[Dasyce]

I wonder if these new speakers are still made in Denmark.

 

[haakono]

I don't think these are Scan-Speak drivers like the previous gen F#1. This is also a lower series anyway, just borrowing the "status" name from the F#1 line.