Could you do a comparison with the Mosconi dsp? I currently have been using the Alpine DSP for a few years now and there is only one feature I wish it had. Helix has an automatic input sensor. I seen Peter at PS sound talk about it, if you using a different source phone calls and gps will still be played on the system automatically. with alpine you would have to manually chnge the input source.
This is a great video .... i was thinking about changing over to alpine for awhile but i am already too far invested into helix .... i was expecting you to be one sided but you shared everything you came across and gave your thoughts on it which seemed very unbiased even though you are more of an alpine supporter... i still did not understand what the all is used for but unless another companies dsp allows me to move my freq response from rew with ease, i think ill stay with helix.
Main source attenuation is when the alpine receives a signal on the secondary input, you can choose how much it attenuates the primary input. So it can make the primary input quieter when getting a Bluetooth signal
I would like to see that as well, however Audison stuff is strictly for dealers. Meaning that small channels as mine have no chance in getting a review sample.
Any zero db signal that is boosted will clip on any good device. That’s why we always say to cut the rest rather than boost one. The channel gain is used like this: if you decide to boost any frequency on your eq you must first cut the channel gain by that amount. It’s all in an effort to avoid clipping.
It is very very nice. That Dirac auto tune saves tons of time and the results have been impossible for me to recreate manually. Maybe because I only know how to tune IIR DSPs but the CDSP is FIR based and if you add that magic Dirac it like OMG.
It would be nice a comparison between Helix and Zapco DSP options. And if their DSPs with integrated Amps are good for like 90-95 of HiFi needs, or it is a lot better to use DSP for DSP and separate Amps.
All pass filters might help better align midbass to subwoofer and "fight" some reflections. However the main purpose for all pass filters in my opinion is to fix the factory signal.
It would be great to compare these two DSPs again, but focused on auto-tuning and tuning. Specifically phase, time alignment, auto EQ using a mic, and saving/ recalling presents ( example: driver, front seats, with center speaker, without center speaker).
This is a hard one🤔 I think it will depend on weather the DSap/amp woild be on display of as stealth. Alpine looks to be more compact and using the propraitery plugs could be i stalled very compact. Helix on the other hand looks much better☺️ Another deciding factor might be functionality, depends what you want your DSP to do.
@@RAW-CAt Thanks for your reply! I'm planning on doing 2 way active up front, 2x coaxials on the rear deck (eventually) and one 10" or 12" sub in the boot for now. I want decent kit to grow with and learn. Helix seems pretty great for this, I'm not too concerned about where it will be mounted.
Can I test the frequency range of a signal with a multimeter? I'm trying to tap into my rear door speakers with an lc2i but I don't know how low that signal goes since I have a factory upgraded system with a DSP amp
No. A DMM is not designed for that. Not accurate enough. They are also designed to be most sensitive around 50-60hz AC. Cuz that’s the most common frequencies in your house. FYI- when measuring gain voltage you’re supposed to use the AC side of your meter. Get a cheap oscilloscope or the Damore engineering crossover tool.
You could use any quality aftermarket head unit. Stock headunits don’t have a flat frequently response. The lower frequency tend to roll off to protect the factory speakers. The Helix dsp has the ability to correct the frequency response of the factory head unit. You can get additional devices to make the frequency flat on stock headunits and still use the alpine dsp.
@@fitchq8441 I’m pretty much stuck with my stock unit (Infiniti M45) which is why I asked. The sub enclosure is tuned low enough so I don’t suffer any roll off. No stock cabin speakers neither; they failed long ago, but still need a boost for mids/highs. Just hoping to get all I need from an amp DSP without buying additional equipment. Thanks, very helpful.
@@RAW-CAt I’m not currently using a Helix so not using any all pass filters. They are useful as an eq for phase in simple terms. Will be experimenting with it soon.
@@RAW-CAt Anywhere there is an issue with phase summation. Could be any of the drivers and the side has yet to be determined. As mentioned, I’ve yet to use it only going by my limited research.
@@Masterdebator881 a feature that you might not use or that might not fix an issue doesn't make a DSP better. All pass alone doesn't make Helix a better DSP🤷🏻♂️ A combination if other features might do.
The frequency response 20hz-20khz,is it capable to play hiress lossles file?192khz 24bit?also how other people installing rear subwoofer to get below 20hz(10-20hz)and also super tweeter for over 20khz(20khz-40khz)..im just wondering
The 20-20k spec is only forlinearity. All equipment is playing down to single digits and above 20kHz. I am not bothered about high rez at all🤷🏻♂️ For a subwoofer to play that low it needs to be in infinite baffle application. I do have a video about that "all you need to know about infinite baffle". Most tweeters play above 20k. Berylium play all the way up to 40kHz. Audibility is a totally different matter.
@@RAW-CAt Hi , Raw cat I have below set up Head unit : alpine 650 I Front comp : Xcelsus XU6.2i Rear comp : Xcelsus Xp.2b Midrange : Xcelsus XXM 325 sub : 10 inch kicker Powered by Morel class ab amplifier MPS and class d amplifier , sub powered by sound magus All active setup , with RCA from Rean and speaker cables from Belden , stinger I’m using Alpine 0850 x dsp .. I didn’t feel satisfied with the outcome Any tips on tuning raw cat ..
@Denis-dx I think Alpine's "top of the line" are the STATUS HDP-D90 and STATUS F # 1 DSP-amplifiers, NOT the PXE-X09. The F # 1 STATUS even has fully Balanced Differential XLR connections (common mode noise rejection) instead of RCA. Balanced (Differential) connections are typically Double the voltage of the same single-ended (non-differential) RCA preamp voltage, and the Balanced Differential connections literally cancel out any inducted noise that might be picked up by the XLR interconnect cables. Higher single-ended RCA preamp output voltages (the most common on car audio gear) are typically desirable to overcome inducted RFI or EMI noise that is picked up by the single-ended RCA connection cables. But if you still have noise issues with 4v RCA preamp outputs, a higher voltage probably isn't going to solve your real problem. You would be better off eliminating or at least mitigating the actual source or cause of the noise instead. 😉
Could you do a comparison with the Mosconi dsp? I currently have been using the Alpine DSP for a few years now and there is only one feature I wish it had. Helix has an automatic input sensor. I seen Peter at PS sound talk about it, if you using a different source phone calls and gps will still be played on the system automatically. with alpine you would have to manually chnge the input source.
automatic input is available on the Mosconi DSP's
This is a great video .... i was thinking about changing over to alpine for awhile but i am already too far invested into helix .... i was expecting you to be one sided but you shared everything you came across and gave your thoughts on it which seemed very unbiased even though you are more of an alpine supporter... i still did not understand what the all is used for but unless another companies dsp allows me to move my freq response from rew with ease, i think ill stay with helix.
Main source attenuation is when the alpine receives a signal on the secondary input, you can choose how much it attenuates the primary input. So it can make the primary input quieter when getting a Bluetooth signal
Id like to see how the new audison bitdrive and DiracLive for cars compares as well
I would like to see that as well, however Audison stuff is strictly for dealers. Meaning that small channels as mine have no chance in getting a review sample.
@@RAW-CAt Have you ever contacted MiniDSP to ask for a review unit of the Harmony or 8x12 DL?
X09 does have the EQ for the input, as well input RTA.
Any zero db signal that is boosted will clip on any good device. That’s why we always say to cut the rest rather than boost one. The channel gain is used like this: if you decide to boost any frequency on your eq you must first cut the channel gain by that amount. It’s all in an effort to avoid clipping.
The substitutes don't work, will it be a momentary problem with RUclips?
Hope if you can make a review on miniDSP products for car
They are not popular in the UK at all. But it would be very interesting to see what dirac is capable of.
Do you have any opinion about the MiniDSP C-DSP 8x12 with Dirac Live?
It is very very nice. That Dirac auto tune saves tons of time and the results have been impossible for me to recreate manually. Maybe because I only know how to tune IIR DSPs but the CDSP is FIR based and if you add that magic Dirac it like OMG.
What should be the ideal type, frequency and slope values in Alpine while tuning for front component speakers (Focal Access 165AS)?
ruclips.net/video/uqAmzmM691s/видео.html
It would be nice a comparison between Helix and Zapco DSP options. And if their DSPs with integrated Amps are good for like 90-95 of HiFi needs, or it is a lot better to use DSP for DSP and separate Amps.
So the alpine won’t correct all pass filters? Like say my GM has Bose and they use them. I need a smart enough dsp to correct them.
D4S EZY DSP has all pass filters.
what operation actually happens when we adjust phase on a channel? because the concept of phase is only meaningful for 2 signals of the same frequency
All pass filters might help better align midbass to subwoofer and "fight" some reflections. However the main purpose for all pass filters in my opinion is to fix the factory signal.
It would be great to compare these two DSPs again, but focused on auto-tuning and tuning. Specifically phase, time alignment, auto EQ using a mic, and saving/ recalling presents ( example: driver, front seats, with center speaker, without center speaker).
Well, there is no comparison as Alpine has no auto EQ functions. It's just a basic DSP that does 99% what an average tune will need.
@@RAW-CAt I thought the whole point is that the alpine does have Auto-EQ using either a mic or an iPhone
@@netlawman2001 themone I have is not opim8, I have 0850x.
If you had the choice of a Helix P Six DSP MK2 with a Bluetooth HEC or the Alpine PDP-E802DSP/amp. Which would you choose?
This is a hard one🤔 I think it will depend on weather the DSap/amp woild be on display of as stealth. Alpine looks to be more compact and using the propraitery plugs could be i stalled very compact. Helix on the other hand looks much better☺️ Another deciding factor might be functionality, depends what you want your DSP to do.
@@RAW-CAt Thanks for your reply! I'm planning on doing 2 way active up front, 2x coaxials on the rear deck (eventually) and one 10" or 12" sub in the boot for now. I want decent kit to grow with and learn. Helix seems pretty great for this, I'm not too concerned about where it will be mounted.
Can I test the frequency range of a signal with a multimeter? I'm trying to tap into my rear door speakers with an lc2i but I don't know how low that signal goes since I have a factory upgraded system with a DSP amp
Sure you can. Connect the multimeter leads and using a tone generator play it. Keep.lowering the frequency and look if tue voltage goes down or not.
No. A DMM is not designed for that. Not accurate enough. They are also designed to be most sensitive around 50-60hz AC. Cuz that’s the most common frequencies in your house. FYI- when measuring gain voltage you’re supposed to use the AC side of your meter. Get a cheap oscilloscope or the Damore engineering crossover tool.
So, in short, the Helix has more functionality for those using a stock head unit? And I’d have to own an Alpine head unit to maximize their DSP?
You could use any quality aftermarket head unit. Stock headunits don’t have a flat frequently response. The lower frequency tend to roll off to protect the factory speakers. The Helix dsp has the ability to correct the frequency response of the factory head unit. You can get additional devices to make the frequency flat on stock headunits and still use the alpine dsp.
@@fitchq8441 I’m pretty much stuck with my stock unit (Infiniti M45) which is why I asked. The sub enclosure is tuned low enough so I don’t suffer any roll off. No stock cabin speakers neither; they failed long ago, but still need a boost for mids/highs.
Just hoping to get all I need from an amp DSP without buying additional equipment.
Thanks, very helpful.
All pass filters alone make the Helix better in my opinion.
What are you using all pass filters for?
@@RAW-CAt
I’m not currently using a Helix so not using any all pass filters. They are useful as an eq for phase in simple terms. Will be experimenting with it soon.
@@Masterdebator881 where in your system do you require an all pass? Which driver and which side?
@@RAW-CAt
Anywhere there is an issue with phase summation. Could be any of the drivers and the side has yet to be determined. As mentioned, I’ve yet to use it only going by my limited research.
@@Masterdebator881 a feature that you might not use or that might not fix an issue doesn't make a DSP better. All pass alone doesn't make Helix a better DSP🤷🏻♂️ A combination if other features might do.
The frequency response 20hz-20khz,is it capable to play hiress lossles file?192khz 24bit?also how other people installing rear subwoofer to get below 20hz(10-20hz)and also super tweeter for over 20khz(20khz-40khz)..im just wondering
The 20-20k spec is only forlinearity. All equipment is playing down to single digits and above 20kHz. I am not bothered about high rez at all🤷🏻♂️
For a subwoofer to play that low it needs to be in infinite baffle application. I do have a video about that "all you need to know about infinite baffle". Most tweeters play above 20k. Berylium play all the way up to 40kHz. Audibility is a totally different matter.
Kindly compare helix software 4.8 and 5.0. Actually i have helix dsp 6 channel, can make video of tuning the same
Software is the same, 5.0 just has some extra functionality.
Hi Raw cat
As an output quality on sound which is good Alpine or helix …if helix is better , how do you rate in %
Doubt anyone could tell the difference between these two.
@@RAW-CAt Hi , Raw cat
I have below set up
Head unit : alpine 650 I
Front comp : Xcelsus XU6.2i
Rear comp : Xcelsus Xp.2b
Midrange : Xcelsus XXM 325
sub : 10 inch kicker
Powered by Morel class ab amplifier MPS and class d amplifier , sub powered by sound magus
All active setup , with RCA from Rean and speaker cables from Belden , stinger
I’m using Alpine 0850 x dsp .. I didn’t feel satisfied with the outcome
Any tips on tuning raw cat ..
@@prky009 look up CAT-BUG tuning guide I have made.
Bro is Alpine PXE-X800 worth buying over helix v8 to save few bucks? Please suggest.
Thanks in Advance.
I would say yes. If you need just a basic DSP with no extra stuff, like center channel or rear fill, go Alpine.
Alpine is a bit disappointing as the top of line PXE-X09 has a frequency response of 20 to 20k and voltage out of 8Vpp..... Lol 2.8V RMS
Considering that Alpine amps max out at 4V of input, don't see anything wrong with that🤷🏻♂️
Ah yes, checked the spec on the RCA low.
It can go higher than that set lpf to off and pay attention to the crossover point it let it rips to 20khz+
@Denis-dx
I think Alpine's "top of the line" are the STATUS HDP-D90 and STATUS F # 1 DSP-amplifiers, NOT the PXE-X09.
The F # 1 STATUS even has fully Balanced Differential XLR connections (common mode noise rejection) instead of RCA.
Balanced (Differential) connections are typically Double the voltage of the same single-ended (non-differential) RCA preamp voltage, and the Balanced Differential connections literally cancel out any inducted noise that might be picked up by the XLR interconnect cables.
Higher single-ended RCA preamp output voltages (the most common on car audio gear) are typically desirable to overcome inducted RFI or EMI noise that is picked up by the single-ended RCA connection cables.
But if you still have noise issues with 4v RCA preamp outputs, a higher voltage probably isn't going to solve your real problem. You would be better off eliminating or at least mitigating the actual source or cause of the noise instead. 😉
The frequency response is irreverent. You can't hear it, it can't affect the audio you can.