GeForce Audio System Update

[geforce]

this track have 40hz bass notes,
my car have some 43~47hz peak notes , that mean playing 45hz you will experience uncomfortably inside it,
the system isn't itself being loud,No Matter u put the same system surely the peak i am getting wont be in other mehran,it will be like 48+ , which is useless , IDEAL FOR SPL NUMBERS
there is a term called "cabin gain", i have shifted resonance frequency of this vehicle which took 3~4 month to have precise peak by experience alot on it + lots of money wasted
my favorite bass notes which is between 38~48hz ,
43~47hz have the best bass notes for listening,demo,effecting
a combine effect of LOWS and HIGH is mentioned frequency 43~47hz, in which it pops ear harder

[Talhadon]

this track have 40hz bass notes,
my car have some 43~47hz peak notes , that mean playing 45hz you will experience uncomfortably inside it,
the system isn't itself being loud,No Matter u put the same system surely the peak i am getting wont be in other mehran,it will be like 48+ , which is useless , IDEAL FOR SPL NUMBERS
there is a term called "cabin gain", i have shifted resonance frequency of this vehicle which took 3~4 month to have precise peak by experience alot on it + lots of money wasted
my favorite bass notes which is between 38~48hz ,
43~47hz have the best bass notes for listening,demo,effecting
a combine effect of LOWS and HIGH is mentioned frequency 43~47hz, in which it pops ear harder

Nice info Sir!!

[geforce]

Now i say , i am satisfied of these pioneers i have pushed them to their maximum limits , but i am not satisfied of my desired SPL it should be over 140+ dbs to enjoy listening some bass
2 mins = voice coils smells , 5 mins = greater chance to blow up voice coil

//youtu.be/http://www.youtube.com/watch?v=mAzrVcnAWD8

people still your help required on this page
https://www.pakwheels.com/forums/sale/157106-laptop-sale-compaq-presario-c500em-dc1-7ghz-1gb-ram-80gb-hdd-karachi

the reason why i am selling here , as you all know
you sell on market at garbage cost and get same thing from their in gold cost
take a mobile example, selling in market is actually a bigger mistake

[Talhadon]

[QUOTE=geforce;2650122]Now i say , i am satisfied of these pioneers i have pushed them to their maximum limits , but i am not satisfied of my desired SPL it should be over 140+ dbs to enjoy listening some bass
2 mins = voice coils smells , 5 mins = greater chance to blow up voice coil

//youtu.be/http://www.youtube.com/watch?v=mAzrVcnAWD8

SIR @ which power u run these subs....Konsi aise power hai jis pe 2 mins = voice coils smells , 5 mins = greater chance to blow up voice coil!!!!!
(Are they on 0.5 ohms)???:S

[geforce]

its now 1 ohms,
f15d gets enough when using 4v pre , Loudness = Low
loudness = off , then you can play for long

f15d , gives 1000wrms ~ 1200wrms @ 1 ohms
and nominal power of these subs are 800Wrms @ 1 ohms ,
so 1ohms is only at tuning frequency (33hz)
at 40hz its greater like 2ohms etc , since the damping level is different on different frequency , therefore power handling varies on different frequencies
,33hz tuned and 40hz making smell , that kinda somewhere over power according to that particular frequency

[geforce]

fellows help me for this (KHI ONLY)

https://www.pakwheels.com/forums/sale/157106-laptop-sale-compaq-presario-c500em-dc1-7ghz-1gb-ram-80gb-hdd-karachi

let me know if ur friends/other wants it, i can give it in a good price

thanks

[scorpion80]

hi omair ..
good to see ur thread .. still going ..

PM me price and condition of laptop i will ask my friends may be sumbody intrested ..

[geforce]

Scorpion bahi
check your PM , mailed you the price

[geforce]

just to make sure i am still alive

//youtu.be/http://www.youtube.com/watch?v=erDpCFL4JU8

[Sharo53]

thanks for the video sir..
can you share the reason why r u away from the audio section? if you dont mind.. o:)

[Talhadon]

just to make sure i am still alive

//youtu.be/http://www.youtube.com/watch?v=erDpCFL4JU8

Sir,Is F-15D is 0.5ohm stable....?
If i am not wrong,then u are having 2 x 308 d2'z before these d4'z because your before setup is running on 0.5 ohm...!(Right)?
Do tell me which THD is provide F-15D on 1,2 and 4ohms...?
Which gauge wire you are using in Big 3 upgrades....?:S
Overall setup wiring.....(gauge)?

Regards!

[Talhadon]

thanks for the video sir..
can you share the reason why r u away from the audio section? if you dont mind.. o:)

+1
for a long time......

[geforce]

amplifier stability is always considered by its current power in use
i can hook it 0.1ohms, making sure i dont let circuit to make amplifier produce more then its rated rms

i am still out of these things ,all interest over this is my final year BS
that was pretty good i enjoyed at right time ..

these are d4s @ 1 ohms ,
1 year ago i switched from d2s to d4s , amplifier is even stable at 0.5 ohms
i repeat dont worry about 0.1 ohm even ! , all matter is how much power amplifier is said to produce
amplifier will be stable even if its connected 0.1 ohms , and the power draw is less then power that amp produce on least ohms 1 ohms

output power
0.1 ohms (1400wrms taken out) Stable (more lower gain settings)
1 ohms (1400wrms taken out) Stable ( gain to max)
in both way amp is stable

[geforce]

8AWG 3parallel lines ( cheap way to make efficient)
dont look for THD much , 1st you cant hear difference very much
2nd , THD is not much thing to focus .. u cant fight with noise

[Sharo53]

sir i love your these kind of explanations...
i gained a lot of knowledge from you regarding audio systems...

a little request
get back in audio section ASAP..

[ShaniDK]

jani kidr gaeb tha??

[madhouse12]

8AWG 3parallel lines ( cheap way to make efficient)
dont look for THD much , 1st you cant hear difference very much
2nd , THD is not much thing to focus .. u cant fight with noise

Thd does make a lot of difference. Sub n speakers get burned more because of getting a distorted signal then getting over powered. Thd in branded amps is lesser than chinese/korean amps and if u were running the same setup on that ss amp smartboy is selling, it wont make ur subs smell and will sound better too.

[geforce]

THD counts when using high frequency (vocals/even treble) it may get Audiable if it exceed 1%+
and u cant hear at low frequencies

[madhouse12]

U Certainly cant hear it but ur woofer surely does. Anything above 1 thd is BAD for ur speakers and comps

[ahsanonline]

get the iasca 97 competition disc. its got five music tracks with distortion from 0.03% up to 10%.

above 0.1% becomes noticable and beyond 1% is really yucky.
for bass, the yucky portion starts at 3% rather than 1%; but even at 1%, the bass notes noticeably lack definition.