Posted August 9, 200520 yr I'm out to get the most from my pair of RL-p 15s.I am more than likely going to be acquiring a 1994 Explorer to replace my Cougar soon. Space is even more so, no longer an issue.I have around 800 - 1000 RMS on tap per 15. Depends on how proper the rating on my amp is.Currently, they are housed in 5.5 NET @ 33hz w/ 72in^ port area.I would like suggestions/personal experiences as to what would be louder.I personally would like to try6.25 NET @ 32hz w/ 110in^2 port area.Thoughts/Random comments all welcome.
August 10, 200520 yr Admin I believe it was mentioned to go up towards 34hz, and I think jelly was going close to 40, but I could be wrong
August 10, 200520 yr Author Yeh. I'm wondering if more airspace and a higher tuning will do a good job of increasing output, but retaining a somewhat flat response.Right now I like how it is, but I wouldn't mind it being louder at all.
August 10, 200520 yr Author I modeled 5.5@33 vs 7@34 in BBP6. The 7@34 shows to be louder all the way till 63hz. Exactly what I am looking for.Though I wonder how well they will handle the power at 3.5net per woofer. Also, is BBP6 reliable enough to pay money for the box?I lost my garage so I have to pay a buddy 50 bucks + material to build er up for me.
August 10, 200520 yr 3.5ft^3 per is the max listed size...a couple of things.....the big enclosure will allow the suspension to move more with the power. so, u'll displace more air. but, like u mentioned, u're going to lose some mechanical power handling ability.the bigger box will most likely cause a loss of power as impedence rises in larger enclosures. but u'll have to graph it and see where the spike comes in....and i think u'll lose a bit of ur sq in the larger box. but then again, i like to build my enclosures on the smallish side anyway....and in ur explorer (i saw where u were getting an 01 sport) ur going to benefit from the vehicles transient response, in short, ur going to be loud as hell anyway....lol...wheeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
August 10, 200520 yr How would the RL-p 15" sound in a 2.5ft^3 net ported box tuned at 28hz in terms of spl and LSQ? I desire a compromise between the two, and with high power handling, ~900watts. TIA.
August 10, 200520 yr Author IMO, step up to 2.75 and let er wang.Or if 2.5 is your limit, it'll do damn fine too.
August 10, 200520 yr I modeled 5.5@33 vs 7@34 in BBP6. The 7@34 shows to be louder all the way till 63hz. Exactly what I am looking for.Though I wonder how well they will handle the power at 3.5net per woofer. Also, is BBP6 reliable enough to pay money for the box?I lost my garage so I have to pay a buddy 50 bucks + material to build er up for me.<{POST_SNAPBACK}>wouldn't go over 7. i had 7@34 once...didn't like it. i personally didn't like anything over 6. i suppose the 7 might do better if tuned lower, say around 28.
August 10, 200520 yr Author What didn't you like about 7@34.Do you think 6@34 would be a good option??I'm wondering if it will be louder across the board than my 5.5@33.
August 11, 200520 yr What didn't you like about 7@34.Do you think 6@34 would be a good option??I'm wondering if it will be louder across the board than my 5.5@33.<{POST_SNAPBACK}>i thought the 7@34 was kinda sloppy. they unloaded easier in the 7 than the 6....my 6@31 was my fav i think my 5@37 peaked a little higher ~50Hz...but the 6@31 just kicked its ass anything under 40Hz
August 11, 200520 yr How would the RL-p 15" sound in a 2.5ft^3 net ported box tuned at 28hz in terms of spl and sql? I desire a compromise between the two, and with high power handling, ~900watts. TIA.in 2.5, i'd up the tuning a bit..somewhere in the 30 range anyway. i ran my 15" treo ss's (similiar in size, power handling) in 2.5@34 and loved them...got really low and louder then s18x off half the power...wheeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
August 11, 200520 yr so does a 7@34 perform /sound different than a 5@34? theyre both @ 34 ? so what is the difference and why?...basics please? if a box is tuned to 34hz isnt that what it does?...34hz
August 11, 200520 yr so does a 7@34 perform /sound different than a 5@34? theyre both @ 34 ? so what is the difference and why?...basics please? if a box is tuned to 34hz isnt that what it does?...34hz<{POST_SNAPBACK}>the size of the box would affect several things...the bigger box will peak higher, but will have a steaper rolloff and a higher impedance. the smaller will have a lower impedance and a more gradual rolloff, but will not peak as loud. it will affect more things than you think
August 11, 200520 yr so does a 7@34 perform /sound different than a 5@34? theyre both @ 34 ? so what is the difference and why?...basics please? if a box is tuned to 34hz isnt that what it does?...34hz<{POST_SNAPBACK}>the size of the box would affect several things...the bigger box will peak higher, but will have a steaper rolloff and a higher impedance. the smaller will have a lower impedance and a more gradual rolloff, but will not peak as loud. it will affect more things than you think <{POST_SNAPBACK}>peak higher=play louder @ tuned freq?peak higher = will play higher freqs? (seems odd for a bigger box)steeper rolloff= will play less below tuneing freq?lower impedance / gradual roll off = will play more freqs below box tuneing with less overall volume?
August 11, 200520 yr so 5@34 is going to be loudest @37 ish hz, and play almost nothing below 26?whereas a 7@34 will be louder @37 ish and play almost nothng below 30?
August 11, 200520 yr Author No, its impossible to tell until you load the box in the car. The transfer function of the vehicle plays a huge part in how loud it is and where.peak higher = peak frequency is a higher hzsteep rolloff = rolls off quicker, less linear response
August 12, 200520 yr No, its impossible to tell until you load the box in the car. The transfer function of the vehicle plays a huge part in how loud it is and where.peak higher = peak frequency is a higher hzsteep rolloff = rolls off quicker, less linear response<{POST_SNAPBACK}>so people just build boxes and 'hope' its gonna work?
August 13, 200520 yr vehicle plays a huge role.....same sub, same amp, same box will have a different score in a different vehicle.true..... but i believe we were talking about same sub, same amp, same vehicle, but a different box edit: here is a link to a imp. graph from my rlp's in diff boxes. to show you just one of the things that'll change between boxes...http://www.soundsolutionsaudio.com/forum/i...indpost&p=77745
August 13, 200520 yr lol...sorry jelly...but what i was trying to get across was this..what worked in ur car, while a starting point, might not work in his..or it could be louder.does that help a bit?wheeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
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