Finders Keepers! "AIWA!"

[Dolby CP-200]

Well I was making a routine dustbin drop and discover in the dark dumped outside on top of a trailer a what a appeared to be two loudspeakers, I noticed with the brief light from the alleyway one of the bass mid drivers was damaged, but still was better than treasure hunting in fact it was like ”treasure hunting” finders keepers!

It’s an AWIA mini system so what I’ll do is check it over and see if I cam make a minor repair to the one of the bass mid drivers, luckily the edge rubber surround is intact so I might just be able to bend the plastic cone back into shape and seal the slit with some silicon rubber.

I must say this neighbourhood is strange just about anyone will throw out anything today. I only hope the next person dumps some JBL loudspeakers out side intact!

So basically I’m taking in stray Hi-Fi systems now and if I keep this up I won’t have room to swing a cat around!

 

[Dolby CP-200]

Well I’m starting off with a minor repair to one of the mid bass drivers. Noted inside it’s a first order crossover. Driver is 5.5Ω wattage is unknown? But it can’t be anything more than 60 or 80 watts?

 

[Dolby CP-200]

Well I’ve just finished attacking the plastic cone with superglue, hope it holds! I’ll give it a good hour before applying some more superglue to strengthen it and then for the smaller details use some silicon rubber to make sure it’s not going to leak any air pressure that might vent from the driver.

It’s a messy affair, but looks like it might hold, once I’ve finished it I’ll fit it back into the enclosure and run a few sine wave low frequency tones though each driver, especially the unbroken driver as that will be my reference loudspeaker to A and B against.

I’ve place my fingers down gently on the undamaged driver to see if the cone is intact and it sounds ok.

As for the rest of it I haven’t a clue I haven’t powered it up yet. There’s a CD player Tuner and tape deck minus no remote control maybe that is partly why someone dumped it outside early this evening?

I have additional pictures later once it’s fixed.

 

[Dolby CP-200]

Well the CD player turned ON LOL and there’s a CD inside called “Soothsayers”? WTF! Well I’ll hook up the audio leads and see if it does in fact works.

 

[Seth=L]

So it was just out on the street?

COOOL!!!!

 

[Adam]

You just know that some poor bastard came home to find his girlfriend all pissed off, his clothes in shreds, his a** kicked to the curb, and to make matters worse...that tramp lied about putting his stereo outside on top of the trailer...

 

[mike c]

i'd say that's the best deal, 2 channel integrated, tuner for 0 bucks + superglue

 

[Dolby CP-200]

LOL well it plays, I’ve got the RCA phones connected to the twin stereo outputs and Madonna playing it!

Its got a slight jitter if you tap the unit but hay I’m not complaining when someone damps partly an entire midi Hi-Fi out to be taken away by the dustmen first thing in the morning or worse the rain getting at it.

I’ll see if the tuner works later tape deck and amplifier as well, as I’m not starting to run out of plug sockets!

Note: it also has an optical digital output has well. How’s that for being born under an unlucky star!

Whoops I think I just heard it skip on track 3 Madonna Immaculate Collection yes its it got few problems to look into.

 

[Dolby CP-200]

So it was just out on the street?

COOOL!!!!

No, down the back alleyway where I live no more than four houses down. I was just dumping my rubbish in the dustbin and noticed WTF!

 

[Seth=L]

Let us know on the amp, tape deck, and tuner. I would probably send the Awia speakers off to a garage or something and put some efficient speakers (JBL perhaps with that for a bedroom, it would be nice little system.

 

[Dolby CP-200]

i'd say that's the best deal, 2 channel integrated, tuner for 0 bucks + superglue

LOL, well I’ve just checked the bass mid driver and so far it looks like it might work. Maybe I should sale it on the LOL Ebay and get £40.00 pounds for needs a little attention!

Oh dear, this is a strange ole neighbourhood, maybe I should dump my rubbish more frequent in the early hours of the morning. Talk about Aladdin’s cave!

 

[Dolby CP-200]

Let us know on the amp, tape deck, and tuner. I would probably send the Awia speakers off to a garage or something and put some efficient speakers (JBL perhaps with that for a bedroom, it would be nice little system.

You hit the nail spot mate, I’m thinking about running the system with the pc, but hold on the pc is a mere 6 feet away from the main system and a lead is usual sent from the pc to the AUX input sometimes.

I might place the CD in line with one of the EQ’s I have and set the levels down -12db or somewhere around that value and then use the CD as a non-sync playback on one of the spare inputs if I have any more spear inputs on the Kenwood KRF-X9050D THX.

So far the CD hasn’t played up, maybe it was just warming up after been stuck out side in the humid weather?

You just know that some poor bastard came home to find his girlfriend all pissed off, his clothes in shreds, his a** kicked to the curb, and to make matters worse...that tramp lied about putting his stereo outside on top of the trailer...

Na mate this is what’s like here in Charminster, a weird bunch that like tossing out items! Even my dad does the same if he thought it wouldn’t work?

 

[Dolby CP-200]

Well it’s almost finished and not bad for bit of superglue and silicon rubber.

 

[Dolby CP-200]

Well I’ve plugged it into a spare EQ and set the EQ levels from 160Hz 400Hz 1Khz 2.5Hz 6.3 16Khz to -12db and left 62Hz at 0db. Also set the input on the spear tape mode input to -6db so now it sounds like a non-sync CD player kinder like selecting the cinema’s Dolby CP-65 non-sync mode at UCI or the Dolby CP-500 at Warner village cinemas.

I think it’s my CD disc that is skipping on this rather sensitive CD has it only does it on a few tracks and it doesn’t do it on the Pioneer DV-525 or the other DVD players.

Also on of my EQ has a dry joint on the PCB on one of the RCA phone outputs so I’ll solder that up later in the day. I mean its playing ok now but if I should move the RCA or joggle it around it would produce a hum! Hence its got a dry joint that I noted a few months back, but I didn’t have a soldering iron handy at the time, so now is the perfect opportunity to fix that small problem.

Note: this the EQ that I have passed the RCA phone outputs from the AIWA CD midi deck upto, and then passed it outputs to the tape line input, and now I can set the fader at near 0db at the moment its at -8db on the fader. Also it sounds smooth and soft if I was to by-pass the EQ and set the internal input to 0db it would be blaring!

Also it sucks when the CD is playing loud! Before playing a film it sets the wrong tone and atmosphere film soundtracks rule OK!

 

[Dolby CP-200]

Being fair and square with my findings!

Well looks like these AIWA SX-N7 three-way with first order passive crossover, stood up to the Apollo 13 dts THX laserdisc without breaking up! There bass response varied differently over the JBL Control 5.

So how did the damaged AIWA SX-N7 handle after my quick fix it solution with superglue and silicon rubber! Did it hold up to chapter 12 yes it did and it produced a nice tympani when the camera pans over towards the mighty Saturn V and tilts upwards there a nice boom located in this direction that peaked at 87dbC in the 62Hz region.

That was good enough for me and I was satisfied I managed to fix the bass mid driver with a bit sweat and practice and nimble fingers. It would be rather hard to find a new driver for it from the manufacture, or replacing each enclosure with newer bass mid drivers that would fit in easily.

Test tones sine wave A&B test was conducted as well.

JBL Control 5
32Hz 60.05dbC
62Hz 79dbC
125Hz 88dbC

AIWA NX-N7
32Hz 56dbC
62Hz 79dbC
125Hz 73dbC

So there it is the JBL Control 5 win with a lower frequency response, it would have sound better if I could place the active crossover DCX2496 on the AWIA NX-S7, but that would be too nice.

 

[10010011]

Hey aren't you the guy on AVS Forum that glued PVC pipe to his subs?

Sub bass extension gets extended to play lower and louder than before!

 

[Rob Babcock]

In the States we call this "dumpster diving"!

 

[stratman]

Man you guys remind me of Sandford and Son.

 

[Seth=L]

Hey Ash, what about the rest of the comonents, they any good? I could care less about the Tape deck and the Tuner, I want to know if the amplifier works.

 

[Dolby CP-200]

Hey Ash, what about the rest of the comonents, they any good? I could care less about the Tape deck and the Tuner, I want to know if the amplifier works.

Well I haven’t powered or linked the chain together but I’d say without doubt it will all work I checked the amplifier out a few nights ago and it worked it all lit up EQ as well.

So I have no doubt the rest will all work. Also I’m giving it away for FREE! I’ve advertised it, on a different forums based here in the United Kingdom, so hopefully some local will pick it up soon! I’d soon make someone feel a little happy with it in there kitchen or garage.