Depends on what you're looking to do with it really. It's certainly outdated and you can get a far better HU for under $200. I think the lack of Sub pre-out and limited playback format support (no MP3 etc I believe) are the biggest drawbacks. It was a good deck back in the day but there are certainly better options out there now for not a ton of money.
Unless I'm missing something, it looks like it has front and rear pre outs. The rears can be used for subs but it's not a dedicated pre out, you're just using the rear feed as your sub signal.
Details: » detachable, fold-down face » plays CDs, CD-Rs, and CD-RWs » multicolor display » Supertuner IIID » 18 FM/6 AM presets » Easy EQ -- five preset EQ curves with 3-band tone adjustment » EQ-EX -- enhances the Easy EQ setting » Sound Focus EQ » 3-level loudness » MOSFET50 internal amp » XM radio-ready (XM Radio subscription, tuner, antenna required to receive the satellite radio signal) -- service is available only in the lower 48 states, not available in Alaska, Hawaii, or U.S. territories » CD changer controls » front and rear preamp outputs » low-pass and high-pass filters » optional auxiliary input » wireless remote » clock » 22 watts RMS/50 peak x 4 channels » CD frequency response 5-20,000 Hz » CD signal-to-noise ratio 94 dB » FM sensitivity 8 dBf
on the back where the rcas are there are 2 pairs one pair says Sub and the other says front, and in my manual it says sub-woofer drive capability9max70WX1/2ohm
on the back where the rcas are there are 2 pairs one pair says Sub and the other says front, and in my manual it says sub-woofer drive capability (max70WX1/2ohm)
Ok, well I'm not an expert by any stretch but like I said, the second set of preouts COULD be used to run subs but you'd have to A) Not use that pre out for your rear speakers or B) use a pair of splitters to split the signal to feed the rear speakers and the subs. I had to use splitters with my old DEH-P6400 and subs, and it'll work but you get better sound quality and adjustment capabilities with separate rear and sub pre outs. Keep in mind though, these are just my thoughts, if you're happy with the deck then by all means stick with it. Like Jexx said, quality-wise Pioneer makes good products, I run a DEH-P5800mp right now myself.