To Preamp or not to Preamp, that is my q

Hin Levinson 39 has a preamp section built in it. That's OK to connect to a power amp. 99% of other CD players like the Denon used here does not have one built in.

To use a regular CDP as a drive for power amps are not appropriate. Sometimes getting a passive will do a great job but not always as some interconnects have higher capacitance values therefore cable matching is sometimes a problem without a preamp or with a passive.

Lower output impedence a preamp produces makes driving a cable easier therefore you will not suffer uneven frequency response. Sometimes w/ a passive, you will get rolled off highs and low frequency if the interconnect mismatch.

Well, as others have said, there is no right or wrong. If you think your system sounds great, then that be it. Save the money and buy yourself more music to enjoy.

Cheers!

i have to agree with everyones statements. i tried a cal 15 direct to several amps (ss and tube). it sounded better with a pre. cal has a digital gain. i have also tried direct with my birdland dac that is analog gain and the pre sounds better to me. robieck is correct....if you like the sound. that is all that counts. i personally like the quality that an active pre provides to the music. it works for me. have a dealer lend you a pre or by a used one from audiogon at your price point. lots of old great units for any budget.

One other consideration beside output Z (impedance) of the Dennon CDP is the drive level capability. If it's capable of driving the PA to full output power then I probably wouldn't use a preamp in your situation. Compare the Dennon's max. output voltage spec. to the Parasound's input sensitivity spec. to determine compatibility. Impedance-wise the Dennon's output Z should be <1/10th the Parasound's input Z to avoid possible interconnect frequency response abberations (this expanding upon Gen's post). Likewise if you do use a preamp then its' output Z should be <1/10th the Parasound's input Z, and the Dennon's output Z should also be <1/10th the preamp's input Z.
Cable-wise the philosophy of many 'philes is to maintain equal or better interconnect quality from CD to pre, & pre to P.A. I follow that approach myself, so I use the same type interconnects for both paths.
Also, regarding use of a preamp, some users have experienced better dynamic drive from an active pre than from a passive, but at the expense of some transparency. Bear that fact in mind if/when you decide to experiment with an additional stage, because an active pre may or may not enhance dynamics over your present direct-drive approach. An active pre with a detachable AC cord also permits the flexibility of experimenting with different upgrade AC cords, if you desire to try that approach regarding tonality issues. Of course if the CDP has a detachable cord, that's yet another option in that regard.

A preamp can filter out alot of RF garbage that many lower mass market cd players produce (if I said that wrong go to Van Alstine's sight and they say it right) so a good preamp can make a system sound better. "Passive preamps" are technically passive control units. You probably would gain nothing with a passive control unit since your cd player would then have to drive two lengths of interconnect.