View Full Version : help 2 alpine type r 12s for box design

03-30-2010, 03:02 AM
2 12" type r woofers. i want to run them single chambered, facing down in a ford ranger. working with about 3.5 to 3.8 cubes total. what should i tune them at, customer is looking for some deep loud notes. amps will be 2 mrp m500 alpine. any suggestions will be much appreciated.

03-30-2010, 03:16 AM
tuned anywhere from 30-34hz sounds great for the R's.

03-31-2010, 03:51 AM
Your building a box for someone but have to ask about tuning. This sounds like fail to me.

03-31-2010, 08:49 PM
You don't have enough room for ported.

04-04-2010, 10:30 PM
called alpine, tuned at 35 hz at 3.8 cubes was highly recommended. failure rate is very high and likely, i expect it. said and done, it plays very accurate, holds a good low note. personally i hate alpine woofers.