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BMW 3-Series (E90 E92) Forum
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Helix p-dsp
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12-19-2012, 04:42 PM | #1 |
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Helix p-dsp
Hi
I have E91 with audio system HiFi(Option 676) and plan to buy a Helix p-dsp. The manual for the p-dsp specifies a 3v input sensitivity and nothing about balanced inputs. Would the p-dsp be compatible with the 5v balanced output from the OEM HU? |
12-20-2012, 12:05 PM | #2 |
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http://www.helixhifi.com/contact/
Go to the above link and send them an email with as much info as you can. They will get back to you. Also let me know if you want to add an external master volume and/or sub volume. Audiotec Fischer have been delaying their official external control for a while now, but with the schematics, pots and the right plug you can make one yourself. Nice choice. I love the user interface on this unit. Its also very small |
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12-20-2012, 04:57 PM | #3 | |
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Are you running from the HU to the RCA inputs of the DSP? Is the external master volume only useful if you use the digital input? One thing I miss with the P-DSP is the option to select between different presets via a remote controller. It would be nice to switch between digital (phone) and analog (HU) from an external controller. |
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12-21-2012, 07:52 AM | #4 | |
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Well it depends how OCD you are lol. For me i would like to set the HU at the max unclipped output (45 clicks or something) and then use the external vol as a master. Its not really needed but if there's a way i can get both on one knob then i'll do it. But im definately fitting a sub control. Thats a must for me. Do you mean switching between saved tuned setups? The only way at the moment you can switch between saved tuning set ups is to buy micro sd cards and save a set up on each. Then you can switch them by pushing it in the dsp. There is meant to be an android app but its been delayed! |
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12-21-2012, 08:42 AM | #5 |
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Mob17
If you get sometime, it would be good to write a comparison / difference b/w MS-8 and Helix P-DSP. It will certainly help many others to choose DSP.
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F36 Xdrive for her - HUD, park assist, heated steering wheel, rear camera, Apple car play
F36 RWD for him - HK, M sports pack, GTS tail light, Apple car play |
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12-21-2012, 09:14 AM | #6 |
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Yeah sure will do. Will probably need a few weeks so i can really use the DSP. At the moment i haven't done any EQing, TA, crossover adjustments or phase invertions. I just want my ears to be used to completely factory EQ. Then hopefully i'll get a mic and RTA software and things should get interesting!
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12-21-2012, 06:17 PM | #7 | |
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Adding an external volume control would probably solve the problem with the 5v output from the HU vs 3v input sensitivity of the DSP. Do you know a good place to mount the knob? |
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12-21-2012, 09:43 PM | #8 | |
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Yeah it should solve your problem hopefully, but i'd wait to hear from Helix about the balanced outputs. About mounting haven't thought about it. I'm thinking maybe the cubby hole under the headlight switches. Or maybe just on the vent near the drivers mirror or in the ashtray somehow. |
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12-24-2012, 05:38 AM | #9 |
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I'm not too in the know about pots but do you know if this dual one would work?
http://uk.farnell.com/te-connectivit...52?Ntt=1898452 |
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12-24-2012, 06:40 AM | #10 |
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That is where mine is hidden. Nice clean OEM integration without any signs of after market stuff in your car.
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F36 Xdrive for her - HUD, park assist, heated steering wheel, rear camera, Apple car play
F36 RWD for him - HK, M sports pack, GTS tail light, Apple car play |
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12-24-2012, 06:50 AM | #11 |
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12-24-2012, 08:58 AM | #12 | |
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I was changing it on every other track, but lately I have left it on the optimal level and stopped using it. Do you have bass boost on your amp or sub gain?
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F36 Xdrive for her - HUD, park assist, heated steering wheel, rear camera, Apple car play
F36 RWD for him - HK, M sports pack, GTS tail light, Apple car play |
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12-24-2012, 09:27 AM | #13 | |
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Nope, no bass boost, but if i wanted to i could boost frequencies via the DSP. I just haven't had the time to EQ anything yet. |
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12-25-2012, 06:47 AM | #14 | |
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I have tried to find a suitable one but it was very hard to find. This might work: http://se.mouser.com/Search/ProductD...JHI9noY7CFPA== I don't know where to find good looking knobs. |
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