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DSL tweaking!!!!!

glen - 2013-03-02 21:16

Hello everyone :-D . QUESTION: Does anyone know whether there is a way to tweak the DSL circuitry on an AWIA CS 880 to produce a more deeper Bass. :hmmm: when i opened up my AIWA i did see a few adjusters by the Amp, wasn't to sure what those switches boost,if theres anybody out there that knows, give me the low down pleeeeeeeeeese...

Btw the reason why i'm asking is because when i switch on the DSL at low/high volume it comes on but u hardly notice it, :annoyed: so i'm thinking maybe the DSL volume can be tweaked.
Thanks... Glen :thumbsup: 

ken80s - 2013-03-03 02:48

Originally Posted by Glen:

Hello everyone :-D . QUESTION: Does anyone know whether there is a way to tweak the DSL circuitry on an AWIA CS 880 to produce a more deeper Bass. :hmmm: when i opened up my AIWA i did see a few adjusters by the Amp, wasn't to sure what those switches boost,if theres anybody out there that knows, give me the low down pleeeeeeeeeese...

Btw the reason why i'm asking is because when i switch on the DSL at low/high volume it comes on but u hardly notice it, :annoyed: so i'm thinking maybe the DSL volume can be tweaked.
Thanks... Glen :thumbsup: 

Hi Glen,

I would suggest you to study the circuit diagram first for this model. Try tracing the circuit that leads to the DSL control, if there is a pot to adjust the gain then you should by means tweak and see if there is any respond to the low frequency. If not maybe you can take the challenge to change the Rx C value to enhance the low pass frequency. Just a penny for your thoughts!

glen - 2013-03-03 02:56

Originally Posted by Ken80s:
Originally Posted by Glen:

Hello everyone :-D . QUESTION: Does anyone know whether there is a way to tweak the DSL circuitry on an AWIA CS 880 to produce a more deeper Bass. :hmmm: when i opened up my AIWA i did see a few adjusters by the Amp, wasn't to sure what those switches boost,if theres anybody out there that knows, give me the low down pleeeeeeeeeese...

Btw the reason why i'm asking is because when i switch on the DSL at low/high volume it comes on but u hardly notice it, :annoyed: so i'm thinking maybe the DSL volume can be tweaked.
Thanks... Glen :thumbsup: 

Hi Glen,

I would suggest you to study the circuit diagram first for this model. Try tracing the circuit that leads to the DSL control, if there is a pot to adjust the gain then you should by means tweak and see if there is any respond to the low frequency. If not maybe you can take the challenge to change the Rx C value to enhance the low pass frequency. Just a penny for your thoughts!

 

Yeah, i think i did see a couple of pots to adjust, but then i may just upgrade the woofers for more powerful ones. Just gotta find 5.25" ones with a port hole through the magnet, max wattage say around 70w

radio.raheem - 2013-03-03 11:49

I suggest you get her recapped....these have superb sound if there working normally

glen - 2013-03-03 12:15

Hi Radio Raheem. Excuse my ignorance but your gonna have to explain to me what capping is,  don't have a clue mate.

bison - 2013-03-03 12:21

capacitors that need replacing,i have an aiwa 600 and the caps have started to go on

that..its fine when you turn it on but after an hour the caps give in

imagesCAM0TN0B

radio.raheem - 2013-03-03 12:22

Sorry my bad glen....capping is when you get the capacitors etc replaced.....these degrade after time and the sound deteriorates..... those main speakers in the 880 are better than those found in most boomboxes.....i can recommend members such as retrodos recapping is not recommended to be done by members like me and you son

glen - 2013-03-03 13:19

Ok. I hear you. I've seen the capacitors that are connected from the woofers to the tweeter. Looks pretty straight forward to replace to me.

glen - 2013-03-03 13:32

Thanks bison. I was thinking of upgrading my original Aiwa woofers for a pair of Soundlab speakers 30w RMS. 60W Capacity. But in order for the Passive Radiator to work I need to get a set with a port hole drilled through the centre of the magnet in order for the airflow to hit the back of the cabinet and move the Passive Radiator.

davebush - 2013-03-03 13:49

You go for it glen....rr is only saying that cos he`s got sausage fingers......only kiddin reno

traveler - 2013-03-03 14:03

Originally Posted by Glen:
Thanks bison. I was thinking of upgrading my original Aiwa woofers for a pair of Soundlab speakers 30w RMS. 60W Capacity. But in order for the Passive Radiator to work I need to get a set with a port hole drilled through the centre of the magnet in order for the airflow to hit the back of the cabinet and move the Passive Radiator.


Have you ever held a speaker in your Hand whilst it is playing sound's?

Ever Notice that the Sound emanates from both the front of the RAW Speaker and also out of the rear or backside where the magnet and basket structure is?

 

Read - http://en.wikipedia.org/wiki/Loudspeaker 

 

You dont Need a Hole through the magnet to the inside of the box for the passive radiator to move.  
   

Any Speaker meeting the Ohm and Efficiency rating for this size of box given and the frenquency you wish this to respond to, if we are being critical, or just get a speaker that fit's and works and play it by ear...


There can be many reason's for the Hole through magnet in the rear of the speaker in this design of boombox, I offer just One:  That hole is back there to relieve the pressure of the compression of air trapped under the dustcover when the woofer is in it's rearward stroke to allow the dustcover to remain in place and not be ripped off of the cone during long excursion's of the woofer cone traveling in and out re-producing sound.  designer's gotta have their 'chrome' dustcaps bling...

glen - 2013-03-03 14:30

Originally Posted by davebush:

       

You go for it glen....rr is only saying that cos he`s got sausage fingers......only kiddin reno


       

Hahahhahahahahahhahah..PMSL!! Sausage fingers! !! Thats Hillarious. ..

glen - 2013-03-03 14:34

Originally Posted by traveler:

       
Originally Posted by Glen:
Thanks bison. I was thinking of upgrading my original Aiwa woofers for a pair of Soundlab speakers 30w RMS. 60W Capacity. But in order for the Passive Radiator to work I need to get a set with a port hole drilled through the centre of the magnet in order for the airflow to hit the back of the cabinet and move the Passive Radiator.


Have you ever held a speaker in your Hand whilst it is playing sound's?

Ever Notice that the Sound emanates from both the front of the RAW Speaker and also out of the rear or backside where the magnet and basket structure is?



 

Read - http://en.wikipedia.org/wiki/Loudspeaker 

 

You dont Need a Hole through the magnet to the inside of the box for the passive radiator to move.  
   

Any Speaker meeting the Ohm and Efficiency rating for this size of box given and the frenquency you wish this to respond to, if we are being critical, or just get a speaker that fit's and works and play it by ear...


There can be many reason's for the Hole through magnet in the rear of the speaker in this design of boombox, I offer just One:  That hole is back there to relieve the pressure of the compression of air trapped under the dustcover when the woofer is in it's rearward stroke to allow the dustcover to remain in place and not be ripped off of the cone during long excursion's of the woofer cone traveling in and out re-producing sound.  designer's gotta have their 'chrome' dustcaps bling...


       

Traveller thats an excellent description of

traveler - 2013-03-03 14:41

Originally Posted by Glen:
Originally Posted by traveler:       
Originally Posted by Glen:
Thanks bison. I was thinking of upgrading my original Aiwa woofers for a pair of Soundlab speakers 30w RMS. 60W Capacity. But in order for the Passive Radiator to work I need to get a set with a port hole drilled through the centre of the magnet in order for the airflow to hit the back of the cabinet and move the Passive Radiator.

Have you ever held a speaker in your Hand whilst it is playing sound's?

Ever Notice that the Sound emanates from both the front of the RAW Speaker and also out of the rear or backside where the magnet and basket structure is?

 

Read - http://en.wikipedia.org/wiki/Loudspeaker 

 

You dont Need a Hole through the magnet to the inside of the box for the passive radiator to move.  
   

Any Speaker meeting the Ohm and Efficiency rating for this size of box given and the frenquency you wish this to respond to, if we are being critical, or just get a speaker that fit's and works and play it by ear...


There can be many reason's for the Hole through magnet in the rear of the speaker in this design of boombox, I offer just One:  That hole is back there to relieve the pressure of the compression of air trapped under the dustcover when the woofer is in it's rearward stroke to allow the dustcover to remain in place and not be ripped off of the cone during long excursion's of the woofer cone traveling in and out re-producing sound.  designer's gotta have their 'chrome' dustcaps bling...


        Traveller thats an excellent description of



Your Welcome

radio.raheem - 2013-03-03 15:38

Originally Posted by Glen:
Ok. I hear you. I've seen the capacitors that are connected from the woofers to the tweeter. Looks pretty straight forward to replace to me.

To recap a boombox and get restored sound....you need to replace them all....

 

not just 2

 

classic dave....keep on truckin lad

glen - 2013-03-03 21:32

Originally Posted by Glen:
Originally Posted by traveler:

       
Originally Posted by Glen:
Thanks bison. I was thinking of upgrading my original Aiwa woofers for a pair of Soundlab speakers 30w RMS. 60W Capacity. But in order for the Passive Radiator to work I need to get a set with a port hole drilled through the centre of the magnet in order for the airflow to hit the back of the cabinet and move the Passive Radiator.


Have you ever held a speaker in your Hand whilst it is playing sound's?

Ever Notice that the Sound emanates from both the front of the RAW Speaker and also out of the rear or backside where the magnet and basket structure is?



 

Read - http://en.wikipedia.org/wiki/Loudspeaker 

 

You dont Need a Hole through the magnet to the inside of the box for the passive radiator to move.  
   

Any Speaker meeting the Ohm and Efficiency rating for this size of box given and the frenquency you wish this to respond to, if we are being critical, or just get a speaker that fit's and works and play it by ear...


There can be many reason's for the Hole through magnet in the rear of the speaker in this design of boombox, I offer just One:  That hole is back there to relieve the pressure of the compression of air trapped under the dustcover when the woofer is in it's rearward stroke to allow the dustcover to remain in place and not be ripped off of the cone during long excursion's of the woofer cone traveling in and out re-producing sound.  designer's gotta have their 'chrome' dustcaps bling...


       

Traveller thats an excellent description of
Sorry Traveller, i was on my way home on the bus and sending you this mssg via my phone when my battery died, lol anyway what i wanted to say was that was an excellent description of how a speaker works, well now i know that it well help me tremendoulsy on what speakers ill upgrade to then, check these out and tell me what you think.

http://www.ebay.co.uk/itm/1409...id=p3984.m1423.l2649

 

http://www.ebay.co.uk/itm/2211...id=p3984.m1423.l2649

 

http://www.ebay.co.uk/itm/51-4...;hash=item4aafcdcb98

 

http://www.ebay.co.uk/itm/Mona...;hash=item43ae8479cd

 

http://www.ebay.co.uk/itm/2-x-...;hash=item53f260dad0

 

traveler - 2013-03-03 23:44

Most people in the boombox collecting and preserving area Prefer to keep the

looks of the Box As Orginal as they can therefore keeping ( Most of them Chrome

dust caps ) in front of the orginal woofer's -

 

First you should really try to get

the original speakers re-foamed and or also reconed if needed preserving the

orginal cone & voice coil to best show off the bleeding orginal dust cap - just

for show!    

 

Now if you are after the absolute best sound that you can get from your Aiwa

CS-880 you may replace the woofers with aftermarket speaker's that probally wont

have the chrome dust cover ( you can find the chrome dust cover's online and glue

them on) after you find the perfect sounding woofer that sounds best to you...     

 

You dont have much of a choice over there in the UK.  

     May I reccomend that you consider a car speaker as they are trying to give you

the most sound from a limited amplifier source in a vehicle enviorment versus the

links you suggested that are mostly designed for home speaker replacement -

 

Here are what i found just now in the UK that you may wish to try:

------------------------------------------------------

http://www.caraudiodirect.co.u...ge-street-ed305.html

     Had to watch this video to discover -

Unboxing of EDGE ED306 COMPONENT CAR SPEAKERS 240W / 80W RMS http://www.youtube.com/watch?v=IaRJ4X0gZ6U  

** 84 db - too low a sensitivity per watt driven **

--------------------------------------------------------------------

** much better choice **

http://www.caraudiodirect.co.u...ch-2642-midbass.html

• Frequency response 70-7000 Hz

• S.P.L. 1W/1m 90 dB

• Impedence 4 Ohm

Just give us a call....it's that simple. Contact our friendly team on 01865

341179

----------------------------------------------------------------

What I found - and Logging into ebay uk specifically ...

 

another ** much better choice **

http://www.ebay.co.uk/itm/Pion...ch-Dual-cone-200Watt-

car-Speaker-Free-UK-Shipping-/111018735464?

pt=UK_In_Car_Technology&hash=item19d93b7768 Impedance4O. Frequency response40 - 25,000 Hz. Sensitivity90 dB.

----------------------

above link dont work so here below is a link that does work

Pioneer TS-g1321I 13cm 5.25 inch Dual cone 200Watt car Speaker Free UK Shipping

http://www.ebay.co.uk/itm/1110...018735464%26_rdc%3D1

 

---------------------------------------------------------------

your links ... ** My Notes ** * highest SPL preferred * and 4 Ohm's preferred - Not found....

 

http://www.ebay.co.uk/itm/140906435079?

ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

Sensitivity (dB) 84 = * this sux *

 

http://www.ebay.co.uk/itm/221192915235?

ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

fs - 40 Hz, ( Vas - 16 L *Too much volume required* ) * dont have exact 'ohm'

rating....?  *you would prefer 4 ohm's*

 

http://www.ebay.co.uk/itm/51-4-60W-SHIELDED-BASS-MID-SUB-WOOFER-AUDIO-HiFi-SPEAKER-NEW-/320777079704?pt=UK_Sound_Vision_Speaker_Parts&hash=item4aafcdcb98

Voice Coil Impedance: 6±10% Ohm

Voice Coil Diameter/Material: 25.9mm/AL

Cone Material: Paper Cone

Suspension: Rubber

Res Freq (Fo): 98Hz±20%

Output SPL: 88±3dB

 

http://www.ebay.co.uk/itm/Mona...ass-midrange-speaker-

60WMAX8/290690726349pt=UK_Sound_Vision_Speaker_Parts&hash=item43ae8479cd

Volume displacement (Vd) 16.6cm3

Impedance (Z) 8O

*you would prefer 4 ohm's* SPL(1W/1m) 89dB

 

http://www.ebay.co.uk/itm/2-x-...WER-200W-WITH-KEVLAR-

CONE-8-ohms-902-420-/360548719312?

pt=UK_Sound_Vision_Speaker_Parts&hash=item53f260dad0

 

Impedance 8 ohms *you would prefer 4 ohm's* SPL @ 1W/1m 87dB

 


 

 

 

glen - 2013-03-04 02:18

Lovely just Lovely you always come up trumps for me traveler and you always do your homework. I think i'll try those Pioneers first. Cheers again for the heads up.

Btw What part of the world you from?

traveler - 2013-03-04 02:36

Originally Posted by Glen:

Lovely just Lovely you always come up trumps for me traveler and you always do your homework. I think i'll try those Pioneers first. Cheers again for the heads up.

Btw What part of the world you from?

West

glen - 2013-03-04 03:07

The Pioneers are excellent Full range speakers just one problem the ohms i need is 8ohms and not 4. I read that if u have the wrong size ohms it could damage your amp.

 


(1) If you connect your amplifier to the wrong speaker impedance, you risk damaging the amp.  In tube amps, too high a load impedance (or a disconnected load) can result in damage to the output tubes or output transformer,  while in solid state amps, if  the speaker impedance is too low, the amplifier will tend to overheat and more power is used up in the amplifier than is delivered to the speaker.  Too many speakers on a solid state amp can burn up the power output section.
(2) The amplifier will deliver maximum power (volume) to the speaker when the speaker impedance matches (is equal to) the internal impedance (called the OUTPUT IMPEDANCE) of the amplifier.  Too low an impedance will result in weak output and poor tone.  If the speaker impedance is higher than that of the amplifier, its power output will again be less than it is capable of.

 

So i think ill go for the Sound lab speakers. just gotta find a couple of chrome voice coil dust caps to stick over the ones already there.

http://www.djwarehouse.co.uk/i...;img_name=EVNL022C_1

What do you think?


Infact i may get this one.

http://www.ebay.co.uk/itm/2906...id=p3984.m1423.l2649

stereo.mad - 2013-03-04 03:30

Glen
Just a thought,
Without looking at my 880 I can't remember if it has external speaker outlet? If it does then look at the range of speaker you can plug into it, a lot of boxes have this feature and quite often states you can use anything from a 3.2ohm-8ohm or sometimes more, so to me that tells me the amp is universal,
IE, stick what you like in it lad but get on with it mate as we're all waiting to see this done! Lol

traveler - 2013-03-04 04:24

Originally Posted by Glen:

The Pioneers are excellent Full range speakers just one problem the ohms i need is 8ohms and not 4. I read that if u have the wrong size ohms it could damage your amp.

 


(1) If you connect your amplifier to the wrong speaker impedance, you risk damaging the amp.  In tube amps, too high a load impedance (or a disconnected load) can result in damage to the output tubes or output transformer,  while in solid state amps, if  the speaker impedance is too low, the amplifier will tend to overheat and more power is used up in the amplifier than is delivered to the speaker.  Too many speakers on a solid state amp can burn up the power output section.
(2) The amplifier will deliver maximum power (volume) to the speaker when the speaker impedance matches (is equal to) the internal impedance (called the OUTPUT IMPEDANCE) of the amplifier.  Too low an impedance will result in weak output and poor tone.  If the speaker impedance is higher than that of the amplifier, its power output will again be less than it is capable of.

 

So i think ill go for the Sound lab speakers. just gotta find a couple of chrome voice coil dust caps to stick over the ones already there.

http://www.djwarehouse.co.uk/i...;img_name=EVNL022C_1

What do you think?


Infact i may get this one.

http://www.ebay.co.uk/itm/2906...id=p3984.m1423.l2649


Where did you get your information for number  # 1 as Part of it is written incorrectly, or needs correction.

 

Eight Ohm's is what came painted? on the back of the woofer for the CS-880 I should have confirmed that First. Didn't.  I stand corrected  

 

Your Selection of woofer has a Too Low of a sensitivity (84db)

Should look for the Highest efficinecy db rating in the smallest vas for your application

glen - 2013-03-04 05:33

i'm gonna get these upgrades.

http://www.ebay.co.uk/itm/2906...id=p3984.m1423.l2649

glen - 2013-03-04 05:45

I'm still after the original Passive Radiator, if anybody knows gave me a shout pleeeeease.

traveler - 2013-03-04 08:41

Originally Posted by Glen:

I'm still after the original Passive Radiator, if anybody knows gave me a shout pleeeeease.

I dont have the vocal cords to shout that far

 

For a backing material of the radiator this has:  HI-Tech !!  Cardboard

instead of foam rubber like your's does

 

For another project that got finished another way for a customer a very Long time ago...

 

this is not the correct size or is it?

 

Pyramid Phase III tenna One pair Model PR8 8 inch passive radiator 

IMG_0316 Pyramid Phase III tenna One pair Model PR8 8 inch passive radiator

 

glen - 2013-03-04 09:12

LINK ERROR.2#313027471658321532

Traveler check out the above thread and this will show you what ive done to make the makeshift passive. I now need the original cause I can feel air coming out the front. Just a sml amount.

glen - 2013-03-04 09:18

I think it may work. I know the passive is 170mm around 6.6"so if u allow for the foam surround and f rame then yeah I think it should work. Is this passive still available?

traveler - 2013-03-04 09:46

Originally Posted by Glen:
LINK ERROR.2#313027471658321532

Traveler check out the above thread and this will show you what ive done to make the makeshift passive. I now need the original cause I can feel air coming out the front. Just a sml amount.

Error

          The page you requested could not be found.

traveler - 2013-03-04 09:51

Originally Posted by Glen:
I think it may work. I know the passive is 170mm around 6.6"so if u allow for the foam surround and f rame then yeah I think it should work. Is this passive still available?

?  Is it still availabe for sale presently? - dont know, haven't looked for any.
I only have  up in that picture - last of my stock of speaker radiators.

glen - 2013-03-04 12:12

Originally Posted by traveler:


       

Originally Posted by Glen:
LINK ERROR.2#313027471658321532

Traveler check out the above thread and this will show you what ive done to make the makeshift passive. I now need the original cause I can feel air coming out the front. Just a sml amount.

Error

          The page you requested could not be found.


       


Ok so go to my previous threads by double clicking on my name then go to Received my aiwa cs 880. Part2

glen - 2013-03-05 13:28

These are what im gonna put in tonight.

20130305_192520

20130305_192546

20130305_192603

Look at these monsters, should get some Deep solid Bass from these.

traveler - 2013-03-05 17:53

Could you post a side by side picture of the Rear of the Speaker's ( One each ) of Before 'old  or origanal' versus the After 'New' speaker - to give a idea of just how much difference the magnet is sized compared to the old one?

glen - 2013-03-06 04:53

Here you go traveler, feast your eyes....

20130306_083027

20130306_083130

20130306_104318

20130306_104332

20130306_104347

 

Btw they sound awesome....

traveler - 2013-03-06 07:43

Awesome & WOW