What makes a good, low subwoofer

 

Bronze Member
Username: Darrenmunsk

Post Number: 28
Registered: Apr-06
what should i look for in the sub specs if i want loud DEEP bass? any examples?
 

Gold Member
Username: Pelona

Perris, California USA

Post Number: 1454
Registered: Dec-05
thats wut i want to. a subwoofer that can hit the lowest notes in music.

i would guess it would be a big woofer like a 15" in a large sealed or a low tuned ported box
 

Silver Member
Username: Jeffless600

Post Number: 126
Registered: Feb-06
15"s hit lower, i highly reccomend the Orion H2 15". give it about 1000-1500 watts and your set.

only about $250...GREAT spl and sq/
 

Bronze Member
Username: Darrenmunsk

Post Number: 29
Registered: Apr-06
bump
 

Silver Member
Username: Mixneffect

Orangevale, Ca. USA

Post Number: 911
Registered: Apr-05
Look for the following;

Fs - make sure it is lower than 30 Hz

Qts - for a ported box you want lower than 35, for sealed above 40

Qms - the higher the better (tighter rebound suspension)

Qes- lower is better (you want low Electrical input, and high Qms output)

Bl - The higher the better (this determines how hard it will hit)

Mms - higher moving mass = higher Bl, lower moving mass = higher efficiency.

Xmax - longer linnear travel allows larger wavelengths (lower and more powerfull bass).

Db - higher efficiency is better (louder per 1 given watt measured 1 meter away, usually rated at 1Khz using a 20 Hz to 20 Khz sweep test tones)
 

Gold Member
Username: Suleman36

Maryland U.S.A.

Post Number: 3754
Registered: Feb-05
The Arsenal 15 and SoundSplinter 15 both get really low.
 

Gold Member
Username: Pelona

Perris, California USA

Post Number: 1455
Registered: Dec-05
dam mix..thats some good info...do all those specs really affect lowness?
 

Silver Member
Username: Thomas_g

NM

Post Number: 502
Registered: Oct-05
Make sure its a big sub and the ported enclosure you put it in is tunes low.
 

New member
Username: Specbook562

Post Number: 7
Registered: Apr-06
dont just get a big sub 12s can hit real low biggest is not always better quality plays a big part i had 2 15 inch kicker L7's and someone with 2 jl w6 system hit way lower then my l7s depends on box and install
 

Silver Member
Username: Panocha

Post Number: 154
Registered: Jun-05
15 arsenal will go low:-)
 

Silver Member
Username: Andysd03

Post Number: 115
Registered: Jan-06
12" alpine type X will go really deep i know cause i have one. their freq response is 23hz
 

Silver Member
Username: Solacedagony

New Jersey US

Post Number: 929
Registered: Oct-04
The enclosure is going to have a large impact on how low the speaker will go. Try a transmission line enclosure or a low tuned ported enclosure. A sub with a low Fs is required.
Also, Mix, Xmax doesn't have anything to do with frequencies that the sub plays, it just has to do with linear travel (partly affecting SPL).
 

Silver Member
Username: Mixneffect

Orangevale, Ca. USA

Post Number: 912
Registered: Apr-05
Jake Davis,

"Also, Mix, Xmax doesn't have anything to do with frequencies that the sub plays, it just has to do with linear travel (partly affecting SPL)."

True, but Darren Munsk asked a two part question.

"what should i look for in the sub specs if i want loud DEEP bass? any examples?"

Pelon,

The specs I gave you and the explanations are good to know when picking out a sub. There are a few extras I threw in there because I thought it is stuff that one should know when looking at sub specs.

TJ,

Yeah the box type and size has a lot to do with how low a sub will play, but the question was regarding sub specs. You bring out a good point. Someone ought to start a new thread on how different types of enclosures affect sound.
 

Silver Member
Username: Mixneffect

Orangevale, Ca. USA

Post Number: 913
Registered: Apr-05
Jake,

Xmax does in fact play a major role in how a sub performs down low. A longer Xmax will allow the sub to create larger wavelengths with more controll or ease compared to a shorter linnear travel.

Test this in an eclosure filled with water such as a pool or a bath tub.

Take your index finger and run it back and forth 1" long through the water to generate waves in the enclosure. Take note on the size of the waves that you are generating.

Now take the same finger and run in through the water 5" long instead of 1". Now take note of the waves you just generated compared to the first experiment.

The same goes with sound waves. Longer travel, does indeed help larger wavelengths.

Sure, larger cone size will affect wavelengths better than Xmax, but Xmax does help too, not just cone size.
 

Gold Member
Username: Pelona

Perris, California USA

Post Number: 1458
Registered: Dec-05
does the new xxx 15" hit low?
 

Gold Member
Username: Safe_cracker

Chicago, IL US

Post Number: 1130
Registered: Jan-06
does the new xxx 15" hit low?


Hell ya, probably lower than any other sub out there. I think it has a max excursion of like 5" which fcking awesome! Polo.. :-O
 

Gold Member
Username: Iufan4lifeul

Post Number: 1036
Registered: May-05
15" Arsenal or Havoc.
 

Silver Member
Username: Mixneffect

Orangevale, Ca. USA

Post Number: 914
Registered: Apr-05
Pelon,

Do you live in Perris as in the city where Lake Perris is located?
 

Gold Member
Username: Pelona

Perris, California USA

Post Number: 1459
Registered: Dec-05
yup the lake is a few miles from my house and i got to the school thats right next to the lake. Rancho Verde on Lasele st.
 

Gold Member
Username: B101

Queen City, NC USA

Post Number: 2831
Registered: Sep-05
mixeffect is correct, its plenty of variables that counts....
its also plenty types of bass... :-)
 

Bronze Member
Username: Skies

Courtenay, British Colu... Canada

Post Number: 85
Registered: Aug-05
5" of excursion? ....
thats insane...
 

Bronze Member
Username: Skies

Courtenay, British Colu... Canada

Post Number: 86
Registered: Aug-05
wait that can't be right.... 5 " is HUGE....
 

Gold Member
Username: Pelona

Perris, California USA

Post Number: 1460
Registered: Dec-05
i think its around 55mm xmax. or sumthin like that
 

Silver Member
Username: Mixneffect

Orangevale, Ca. USA

Post Number: 915
Registered: Apr-05
I used to ride jet skis at lake perris in the early 90's when the stand up kind were in ... lol
 

Silver Member
Username: Mixneffect

Orangevale, Ca. USA

Post Number: 916
Registered: Apr-05
According to RE's webbsite the XXX 10", 12", 15", and the 18" all have the same 32 mm of travel one way.
 

Gold Member
Username: Safe_cracker

Chicago, IL US

Post Number: 1133
Registered: Jan-06
That is linear, talking about max excursion...Polo..

PS- If I am not mistaken the linear (one way) for the new 06 is 54mm.
 

Silver Member
Username: Matt12490

Benicia, California USA

Post Number: 867
Registered: May-05
mixneffect- that is for their old line
 

Silver Member
Username: Solacedagony

New Jersey US

Post Number: 930
Registered: Oct-04
Mix: You're talking about two different things here. This thread in general is about a sub playing very low frequencies. A sub can have 10 inches of xmax, but if its Fs is at 40hz, it doesn't help much with the low frequencies. I know exactly what you were getting at though. We want to play these low frequencies _louder_.
Ultimately though, if you're running a good sub, your enclosure is going to dictate a lot of your frequency response.
 

Silver Member
Username: Mixneffect

Orangevale, Ca. USA

Post Number: 918
Registered: Apr-05
My point is that a long-throw woofer will handle the lower frequencies than the same woofer with regular suspension and Xmax.
 

Gold Member
Username: Pelona

Perris, California USA

Post Number: 1461
Registered: Dec-05
yea lake perris is all dirty now though cuz everybody pisses there and theres like diapers floating everywhere. i rememember they found the body of a mexican guy dumped there too
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