Price Advice for Car Amplifers and Speakers

I have the following car amplifers and speakers forsale.
I'm no expert at his so I have no idea how much they are worth.
My brother took these goodies out before he sold his car and went back to Hong Kong. Now I'm stuck with them.

If you're an expert at this, can you please give me advice on how much I can sell them for?
Thanks very much!

ITEM # 1
KENWOOD KAC-923 Power Amplifier
- Rated Power Output at 12V
* 2 Channel / 4 ohms: 100W + 100W
* 2 Channel / 2 ohms: 135W + 135W
Bridged / 4 ohms: 270W
- Maximum Power Output
2 Channel / 4 ohms: 220W + 220W
- 2 ohms stable operation
- Tri-Mode (TM) Operation
- Balanced Input Isolation Circuit
- RCA Line Input and Output
- Dual Negative Feedbacked PWM Regulated
Power Supply ( 8 Power MOS-FET)
- Built-in 18dB/oct. LOW PASS FILTER
- Cooling Fan
- Weight around 5kg
- Made in Japan

Pictures:
http://shum4sale.no-ip.org/01.jpg
http://shum4sale.no-ip.org/02.jpg
http://shum4sale.no-ip.org/03.jpg

How much would this be worth???



ITEM # 2
SONY Stereo Power Amplifier XM-5520
- Selectable stereo/mono operation
- Max. power output 100 watts x 2, 240 watts (mono)
- Rated power output 55 watts x 2, 120 watts (mono)
- Wide dynamic range and low harmonic distortion: 0.005%
- Convertible for 2 ohms drive
- Made in Japan

Pictures:
http://shum4sale.no-ip.org/04.jpg
http://shum4sale.no-ip.org/05.jpg
http://shum4sale.no-ip.org/06.jpg

How much would this be worth???


ITEM # 3
TWO PIONEER TS-W301C SEALED ENCLOSURE TYPE COMPONENT 30cm(12") Subwoofer For Car Stereo

- Max Music Power 400W
- Nominal Power 150W
- Speaker Size 300mm
- Impedance 4 ohms
- Sensitivity 93dB/W(1m)
- Frequency Response 18 - 3,500Hz
- Gross Weight 4.98kg
- Made in Japan

Pictures:
http://shum4sale.no-ip.org/07.jpg
http://shum4sale.no-ip.org/08.jpg
http://shum4sale.no-ip.org/09.jpg

How much would this be worth???




ITEM # 4
SONY 10 COMPACT DISC CHANGER CDX-U404 ELECTRONIC SHOCK PROTECTION ESP
- 10 CD changer with ESP
- Made in Japan

Pictures:
http://shum4sale.no-ip.org/10.jpg

How much would this be worth???

Oh wow OLD-SKOOL Japan-made car audio, eh?

Is any of it brand new? It certainly looks like it's in good condition.

The amps are pretty good quality amps but since todays world of amps are usually rated for more power, lower power amps like these don't fetch a big price. Though they are well built, they likely lack some of today's amp features--notable is the input sensitivity. Amps like these were meant to take pre-out levels of about 2V at maximum. These days most amps handle at least 4V and many handle 8-10V pre-amp input. This may or may not be that important depending on actual HU output and a gain overlap which most people do to some extent...

The subs, honestly, won't be worth much at all--they are pretty old though they are decent.

Do you have a car? If I were you I'd probably just use the equipment yourself in your own car--it's probably worth more to you like that, IMO.

Anyway if I had to put a price on those things some rough numbers I think would be fair...

$50-80 for the Kenwood Amp
$40-50 for the Sony (I noticed there are some wires going from the fuse to the amp terminals, is that because the fuse was blown or because there's a problem with it?)
Maybe $30 each for the subs?
That changer is pretty old skool but thanfully it is a UniLink changer which means, though dated, it will still actually work with even today's Sony HUs. Changer I'd say maybe about $50-$80 as well.

This is my honest opinion on what I think it is worth. If you were just trying to get any cash out of it/sell the stuff quickly you may have to lower those prices. Though the stuff is old-skool none of it catches my eye as anything "collector" or rare--it's just decent car audio gear of yesteryear. Japanese car audio like these mainstream Kenwood and Sony amps were never known for being underrated or anything too special, just quality gear that did what it said. Besides the input sensitivity, crossovers, processing and cosmetics, etc. being a little dated, you could put these amps up against similarly rated Kenwood/Sony models of today and these would be better hands down.

There are people that will appreciate the quality and more honest ratings of older amps like these but they won't be easy to find. You can check prices on eBay for this stuff, if you want--I doubt you'll see any similar gear going for much more than that.

I'll still say I'd think you'd get more worth out of them if you used them yourself, but I don't know what you were expecting to get for the items to begin with... The reason I bothered to make this explation so long is because this is decent gear for an entry-level car audio system but since it's older it has to be appreciated and the best way to do that may be to make use of it yourself.

Wow! Thanks man!
This is very informative!
Unfortunately I don't have a car and these equirements are just sitting here.
So I thought I'll let them go for cheap and maybe it'll be a good starter for someone who is getting into this kind of stuff.
I'm going to post them in the FS forum.

Thanks again!