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Old 05-04-2011, 12:04 AM   #1
nvd52k
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general questions about the dynavin

hey guys need to know something, been looking at usb external hard drives for the dynavin although the one i have doesnt work is there anyone using a external usb hard drive for the dynavin with more then 100gb space. if so what brand or specs is it cause mine doesnt work.
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Old 05-04-2011, 01:00 AM   #2
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your current HD one will work fine, get USB hub which is powered and use that between the HD and the dynavin as the dynavin USB connector is not powerful enough to power a hard drive
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Old 05-04-2011, 03:34 AM   #3
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^^^exactly how i had my external HDD set up. i just tested it out though, dont actually use it day to day
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Old 05-04-2011, 06:07 AM   #4
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sorry for the thread jack, but what is the pre out voltage of the dynavin???

your title suits my question very well, and your question has already been answered!!
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Old 05-04-2011, 11:33 PM   #5
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Originally Posted by aar0n_91 View Post
sorry for the thread jack, but what is the pre out voltage of the dynavin???

your title suits my question very well, and your question has already been answered!!
It is the output voltage of the preamplifier. I.e the power/strength of the signal that the dynavin sends through the RCA's. The greater the better, as it means a more powerful signal to your outboard amps and will result in less THD due to a greater signal to noise ratio at the input stage on your amps.

Good head units have around 3 to 4volts pre-out, and audiophile head units have around 8v pre out. The dynavin has only 1.2v pre out

Pre-amplifier is Not to be confused with amplifier.
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Old 05-05-2011, 12:51 AM   #6
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Within reason the pre-out shouldn't matter too much but it depends why you are asking. If you are asking to match to an amplifier it makes a difference, but the question in the other thread implies setting up your amplifier gain.

Set your amplifier gains to minimum.
Set the Dynavin to say 80% of maximum (i.e. almost full volume)
Turn up the amplifier gains to get them to the point where it's as loud as you will ever want.

This will give you the best signal to noise ratio by keeping the line level signals as high as possible.
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Old 05-05-2011, 01:07 AM   #7
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your current HD one will work fine, get USB hub which is powered and use that between the HD and the dynavin as the dynavin USB connector is not powerful enough to power a hard drive
sorry for the noob question man what do you mean by " get a usb HUB which is powered" is that a hard drive that is self powered that you can buy or an adaptor that you can put on the dynavin head unit usb to by pass power into the hard drive itself? thanks
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Old 05-05-2011, 01:26 AM   #8
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You can get USB hubs that just take power from the host and supply to any device connected to it. There is limited power there (500mA at 5V typically).

Some hubs have a power input as well so you can power high power devices like a hard drive.
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Old 05-05-2011, 02:13 AM   #9
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sorry for the noob question man what do you mean by " get a usb HUB which is powered" is that a hard drive that is self powered that you can buy or an adaptor that you can put on the dynavin head unit usb to by pass power into the hard drive itself? thanks
something like this but, you might be able to get something cheaper Im sure.
http://store.mp3car.com/DC_Powered_4..._p/adt-015.htm
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Old 05-05-2011, 08:51 PM   #10
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You can get USB hubs that just take power from the host and supply to any device connected to it. There is limited power there (500mA at 5V typically).

Some hubs have a power input as well so you can power high power devices like a hard drive.
shonky do you know if any local shops like tandy , or dicksmith etc that supply this?
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Old 05-05-2011, 10:42 PM   #11
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DSE and Tandy (owned by DSE) will have powered USB hubs but it's fairly unlikely they'll have one suited for direct connection to the +12-14V of the automotive environment. They would come with mains powered plug packs stepping down to +5V or +6V I'd guess. That one fgin linked to is specialised for exactly what you're trying to do.

If you were reasonably electronics savvy (and I'm guessing you're not based on the questions) you could create a +12V -> +5V power supply suitable for a regular USB hub.

You'd be better looking to the internet. Perhaps somewhere like dealextreme.
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Old 12-17-2012, 11:24 PM   #12
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What app does everyone use to play music from the HDD?
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Old 12-19-2012, 07:33 AM   #13
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The dynavin has only 1.2v pre out
Damn! That all. Why do you think they designed it like that?
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Old 12-19-2012, 07:31 PM   #14
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Depending which model you have, mine is the V5 non droid...and what you want on the HDD ie MP3s or divx movies etc. You'll find the file indexing for the USB connected devices extremely slow. MP3s on a DVD are much quicker to index or like a lot of Dynavin users just BT off your smartphone. Not in fact sure if it works with droid phones but works well with iPhone.

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Old 12-20-2012, 08:35 AM   #15
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Not in fact sure if it works with droid phones but works well with iPhone.

Graeme
THe USB is slow! haha just make sure you only have one type of file, ei, mp3. All in the one folder helps. THe interface is pretty crappy if you were to have folders, and shuffle will never work with folders. (well I can't get it to work)

I have a Galaxy S2 and bluetooth works, and the steering wheel controls work with it.
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Old 12-20-2012, 03:03 PM   #16
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Damn! That all. Why do you think they designed it like that?
Likely because you're not paying for it to be designed any better.
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