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Shankenstein · 09-18-2013, 06:29 PM

Sorry about going full retard on your thread. Never again.

As far as adapting MiniDSP to mobile, you'll need:
- a power supply (the picoITX, DC-DC-USB, or MeanWell units will do the job)
- a signal (unbalanced RCAs, balanced speaker-level inputs, or digitally converted coax)
- a case (aluminum project boxes are plentiful on eBay)
- standoffs, screws, soldering iron, heat shrink, etc
- neutral cure, clear RTV silicone. Hold on to yer wobbly bits!

As alluded to in my other thread, unbalanced RCAs are the primary contributors to ground loop noise. Balanced or digital is the way to go.

For the speaker impedance, it's dependent on your amp. The Alpine amp you mentioned is regulated to output the same (ish) power from 2-4 Ohms.

Generally though, higher impedance yields more stability, but has a greater chance of over-voltaging your power supply. Lower impedance yields less stability and has a greater chance of over-currenting your power supply. If you're running 1 sub, go for Dual 2. If you're running 2 subs, run Dual 4. This also gives you the flexibility to drop in a monster mono-block later and run it at 1 ohm.

As far as subs, Tantric Sounds, SoundQubed, Sundown, FI, Ascendant, SSA, etc. Give us a rough budget, power level, SQ.

09-18-2013, 06:29 PM	#20
Shankenstein Frosty Carrot Join Date: Jan 2013 Drives: The Atomic Carrot Location: Baltimore, MD Posts: 513 Thanks: 272 Thanked 431 Times in 199 Posts Mentioned: 19 Post(s) Tagged: 0 Thread(s)	Sorry about going full retard on your thread. Never again. As far as adapting MiniDSP to mobile, you'll need: - a power supply (the picoITX, DC-DC-USB, or MeanWell units will do the job) - a signal (unbalanced RCAs, balanced speaker-level inputs, or digitally converted coax) - a case (aluminum project boxes are plentiful on eBay) - standoffs, screws, soldering iron, heat shrink, etc - neutral cure, clear RTV silicone. Hold on to yer wobbly bits! As alluded to in my other thread, unbalanced RCAs are the primary contributors to ground loop noise. Balanced or digital is the way to go. For the speaker impedance, it's dependent on your amp. The Alpine amp you mentioned is regulated to output the same (ish) power from 2-4 Ohms. Generally though, higher impedance yields more stability, but has a greater chance of over-voltaging your power supply. Lower impedance yields less stability and has a greater chance of over-currenting your power supply. If you're running 1 sub, go for Dual 2. If you're running 2 subs, run Dual 4. This also gives you the flexibility to drop in a monster mono-block later and run it at 1 ohm. As far as subs, Tantric Sounds, SoundQubed, Sundown, FI, Ascendant, SSA, etc. Give us a rough budget, power level, SQ. __________________ If you think you're nerd enough, join in the discussions about Suspension and Aerodynamic modelling! Wall of Fame - JDL Auto Design, Raceseng, Vishnu Tuning, Penske Shocks, Nameless, Perrin, RaceComp Engineering, Essex/AP Racing, Verus, RacerX Wall of Shame - aFe Takeda, Wilwood, FA20Club Last edited by Shankenstein; 09-18-2013 at 06:42 PM.