Conrad JohnsonPremier LS2usedConrad Johnson Premier 17LS2  PRISTINE  (LS2 has 10 Teflon Caps as built by CJ)This Premier 17LS2 is museum quality like my Premier 12 C1 Mono block amps and needs nothing. It is beautiful and has original box, and New from CJ (RC-20) remote control. There are so many things...3001.00

Conrad Johnson Premier 17LS2 PRISTINE (LS2 has 10 Teflon Caps as built by CJ) [Expired]


no longer for sale

This Premier 17LS2  is museum quality like my Premier 12 C1 Mono block amps and needs nothing. It is beautiful and has original box, and New from CJ (RC-20) remote control. There are so many things positive written about it, below is from Sterephile.  The addition of the 10 Teflon caps puts this in a category above many other CJ amps, the fact its a Premier 17 means to me in MHO it is one of the very very best and most overlooked pre amps with a short run. CJ first tested Teflon caps right here and you do not read much about it because they quickly learned what they had and moved the technology into their reference products. This is your chance. You won't need another pre. Buyer pays shipping and will pay the paypal fee of 3%. 

From Sterophile RE: LS2

The 17LS2 was launched in November 2003. It currently retails for $5500—that's $1000 more than the original LS17 when it debuted in March 2000.

Why the price increase? You can blame those new 2.0µF Teflon capacitors, of which the Premier 17LS2 has 10. "The Teflons are better at resolving detail and preserve spatial information, but cost something like three times as much as the polystyrene caps used in the original Premier 17," Lew Johnson said.

What, exactly, is a capacitor?

"A capacitor is a device to store energy," Lew explained. "Think of two items in your kitchen drawer—a piece of conductive tin foil and Saran Wrap, which serves as a dielectric, or insulator. Producing a high-quality capacitor is not so easy—especially a large one with a value of 2.0µF. Conrad-Johnson worked with their supplier to develop the necessary film and winding technique.

"The bigger the capacitor, the greater the rejection rate," Lew continued. "It's really not practical to make a [non-electrolytic] capacitor with a value greater than 2.0µF."

For the Premier 17LS2, Conrad-Johnson improved the power supply. The input power-regulator circuit, which is shared by both channels, now uses costly Vishay resistors for better high-frequency characteristics, according to Lew. Each channel's final power-supply regulator has been fitted with higher-current devices to roughly quadruple the regulators' current capabilities. The output impedance has been reduced by a factor of four, increasing the channel separation and lowering the noise floor. Lowering the noise floor increases the signal/noise ratio. Less noise means greater dynamic range.


Read more at https://www.stereophile.com/content/conrad-johnson-premier-17ls-line-stage-preamplifier-sam-tellig-17ls2#lGmg1xtJOvLG8edB.99

Comparisons and Contrasts 
As I reviewed and reflected on my notes on the Premier 17LS, I found myself comparing it to the best of the preamps I've auditioned in the last few years: the Audio Research Reference Two, the Sonic Frontiers Line-3, the VAC CPA1 Mk.III, and the Adcom GFP-750 Gold.

The Adcom is perhaps the most tonally neutral of the group but by far the least sophisticated. It's a dynamite-sounding unit and a spectacular bargain, but the Premier was far more sublime, and its reproduction of transients, details, and tonal colors was much more vibrant and engaging.

The Sonic Frontiers Line-3 is considerably more detailed than the Adcom and very neutral—more neutral, in fact, than the Premier, which sounded sweeter and not quite as flat. But again, the Premier's reproduction of tonal colors and dynamic subtleties made it much more engaging and alive.

The VAC, on the other hand, is wonderfully alive and engaging, with vibrant details and dynamics and rich tonal colors. The Premier, however, matched it goosebump for goosebump, but was subtler and a bit more refined. The C-J's images were more detailed and better-defined, its tonal palette more varied. Shifting my original paradigm, it's the VAC that has the bigger, warmer, more vivid, and slightly less sophisticated sound.

The ARC Reference Two is a truly superb preamp that combines the neutrality of the Sonic Frontiers with the subtlety and vibrance of the VAC. It's more neutral than the C-J and outperforms it at the frequency extremes, but it didn't match the C-J's engaging detail, to-die-for midrange, or rich, luscious tonal structures.


Read more at https://www.stereophile.com/content/conrad-johnson-premier-17ls-line-stage-preamplifier-page-3#x1KWFFsiQkTb1UpP.99
"I'm proud to say that not all of my preconceived notions about the Premier 17LS proved false. I just knew that it would have a glorious midrange, and boy oh boy, did it ever. Sweet, luscious, clean, defined, detailed, coherent, clear—my notes are full of page after page of audiophile superlatives, hoping, I guess, to achieve amplification through repetition. The Premier's midrange proved to be one of those standard-setting entities that makes a reviewer regret having used up all his or her superlatives on lesser components. The C-J's midrange was so sweet, so detailed, so...everything, that every other preamp I threw in my system sounded a bit crude, or pale, or confused in comparison."
Read more at https://www.stereophile.com/content/conrad-johnson-premier-17ls-line-stage-preamplifier-page-3#x1KWFFsiQkTb1UpP.99