Seymour Duncan Quarter Pound PJ Set

Pickup features: Passive
Impedence or other specs:

Model of guitar or bass:
Position: neck
Pickup being replaced:
Other pickups on guitar:
Artists using this pickup:
You musical style(s):
Reason for pickup change:

Perceived output level:
Tone: Solid all the way across the spectrum.
Sonic evaluation: Setup: Ampeg 4x10 cabinet, GK 400RB head.
I purchased a Quarter Pounder precision and jazz (bridge position) pickup to replace the stock pickups in a Squier Precision Bass Special. Now I realize you may be thinking, "why put lipstick on a pig?" but I assure you that the bass, despite being a Squier, plays like a dream?or at least well enough that I thought it was worth the investment.
The pickups are definitely louder than stock, but not overwhelmingly so?perhaps about 20%. What I really notice, however, is that there are almost NO dead spots in the sound. I get a consistent, solid, warm tone whether I'm on the low E or playing on the D string at the 7th fret. I couldn't be more pleased with the pickups in this respect.
I should also mention that the P-bass pickup is dramatically louder than the single J-pup in the bridge position. That's to be expected, of course, but I though it worth mentioning that you may want to think of the jazz pickup as an accent pickup with this setup. The P-bass is really beefy.

For which styles and positions is this pickup (un)suitable:

Comments: The overall tonal capabilities seem to be exactly what you'd expect from a good vintage P-bass pickup?except fuller. These pickups are likely well suited for any style, but particularly good for rock, blues and country?anywhere a solid, vintage thump is needed.
If you decide to purchase these pickups, you may not be shocked or overwhelmed by their greatness up front. But I feel fairly confident that the more you play with them, the more you'll appreciate their consistency and oomph. Good pickups.

Pickup features:
Impedence or other specs:

Model of guitar or bass: Fender American Hot Rod P-Bass - Ash body, Rosewood neck
Position: neck
Pickup being replaced: Stock P+J set
Other pickups on guitar:
Artists using this pickup:
You musical style(s): Rock
Reason for pickup change: I wanted more "Ooomph" for live gigs and recording.

Perceived output level: Much louder than the stock pickups.
Tone: Beautifully balanced with bucket-loads of growl.
Sonic evaluation: Ampeg SVT-2 head and Ampeg 6x10 cabinet.

For which styles and positions is this pickup (un)suitable: IMO, this set is wonderful for any and all styles of music.

Comments: Oh, my dear God in Heaven...this is without a doubt the absolute best sounding set of pickups I have ever heard! I think I would cry my eyes out if my bass was destroyed or stolen, then I would go right out and buy the exact same setup. The perfect set of pickups.

Pickup features: Humbucking and Single Coil passive set
Impedence or other specs: Available from www.basslines.com

Model of guitar or bass: Fender Active P-Bass (mid 80s Korean w/no pre-amp & new bridge)
Position: neck
Pickup being replaced: Stock Fender import pickups.
Other pickups on guitar:
Artists using this pickup:
You musical style(s): Rock, Melodic Hardcore, Progressive
Reason for pickup change: Old pickup lacked solid low-end and output, had high-noise, and was generally not sounding like I wanted it to sound.

Perceived output level: The hottest passive bass pickup I've ever heard... it can almost compare with actives.
Tone: Neck position excels in bass and mid... very solid sounding and rich. Bridge position lacks the bass, but has plenty of mid-range and highs. They were definitely designed to work together and excel when paired.
Sonic evaluation: This is being run through a GK800RB with a DBX266 Compressor and BBE 802 thorugh the effects loop. Cabinet is a Bag End S-15 Deep. Bass is a heavily modified Fender (see above) with a much more substantial after market bridge that required through body string mounting. The nut was made to accomodate a .65 - .130 string set for BEAD tuning.
Without the effects loop, it sounds pretty good. I can't tell you how much of an improvement it is over stock pickups... far more volume, clarity, and tone. With the effects loop, these pickups slay. They do far more than my old stock pickups did through the same rig. Definitely an improvement.
This pickup will distort easier than others due to the output, but it does not have to... it's one of the few pickups that I think does not have to be turned up full to sound good.
In combination, these pickups work very well together. I think the neck pickup is more important for most bass players: this is where the bass and punch comes from. If you play snap and pop bass, I'd suggest relying more upon the bridge pickup: it has a great attack and will have more bass than stock pickups.

For which styles and positions is this pickup (un)suitable: This bass is used in BEAD tuning for rock, melodic hardcore stuff. It's a great match that really brings out the lows.

Comments: I have P and J models purchased off of eBay as reserves or for a new project bass. Do I like them enough?
Probably the only other power pickup that I'd want would be the Musicman style pickup with preamp, but this does a great job.
I should stress that through body string mounting is a helpful contribution to any bass. Combined with taper core strings, you get a great deal of brightness in addition to extra sustain and bass.
Also, I think matching any bass with a BBE Sonic Maximizer is an essential move for any bass player. They just really do a great job of pulling out the depth of the bass and increasing overall clarity. My rig is fairly small by bass player standards (6 space rack w/GK800RB, dbxCompressor, BBE 802, and a power module; Bag End S-15 Deep Cabinet,) but competes constantly with 8x10 cabinet rigs. I've played several gigs with bands who bassists used Ampeg SVTs and 8x10s and never felt like they sounded any better than me.
The one thing I don't like about this pickup is the fact that since it's so powerful, you have very little choice in what other pickup you can use with it. I had the neck model installed first with the stock jazz pickup and the output level dropped whenever the jazz was brought in (most likely due to heavily differing impedances.) I replaced it with a Lace jazz bridge model... same thing if not worse. I finally bought the Quarter Pounder Jazz Bridge... problem solved completely. Make sure you take this into account if you use a multiple pickup combination.
About me: I've been playing bass for 8 years, guitar for 12. I am very biased towards Seymour Duncan pickups due to their quality and their product range. They're more expensive, but very worth it. The Lace are nice, but work best with a preamp.

Pickup features: 1Single Coil, 1 Split Coil, Passive, with 1/4" wide pole pieces
Impedence or other specs: See Duncan Website

Model of guitar or bass: Jackson Performer (Dinky P/J)
Position: neck
Pickup being replaced: Stock Jackson Pickups Resembling EMG Selects
Other pickups on guitar:
Artists using this pickup: Don't Know
You musical style(s): Diverse
Reason for pickup change: Stock pickups were a little bland with regard to sound and output.

Perceived output level: About 50% more output than stock pickups
Tone: P Bass has good solid low end and well rounded highs, J is funky with quick attack
Sonic evaluation: I play in a variety of settings including a contemporary Christian group. I use a GK115 Combo and an SWR Workingman's 10 at home and in smaller venues. I almost chose an active system, but some active preamps actually make it harder to get a good sound. This PJ combo has been perfect. The J pickup gets that Jaco Sound and the P pickup added gives up good growl and handles my low D tuning flawlessly.

For which styles and positions is this pickup (un)suitable: Mentioned before, these pickups in combination offer great versatility

Comments: I would definitely buy these pickups again. I have been playing for 15+ yrs. and like a clean, Full range, high output sound from my pickups and these were the perfect fit. Speaking of which, they dropped right into the existing cavities in my bass with 0 modification to the instrument. I'd like to add that I also change out all the pots too-could make a difference. The pickups have beefier output than usual but the tone is true to style for each pickup in the set.