More importantly, the actual performance of an active line stage is not even relevant to whether it is needed in a system or not. Since other readers may also be confused about this critical issue, and because it appears that I haven't done a good enough job with "The Bolero Test" to help audiophiles understand and answer the line stage question), I will try again, but this time from another angle:
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So, how do I wrap this up. Simply. The Audio Synthesis Passionis one serious piece of equipment. In the right system it cantake you places no active pre-amp can (I tried it paired with theWarner Imaging VTE-200 amp where it was, if anything, a bettermatch than the McCormack. And the Passion, McCormack,Martin-Logan CLS combo went beyond musical reproduction to almostliteral music re-creation). Detail is presented with purity, butin a musically consonant manner. And while breaking the"Slip Slidin' Away" principle may not bring a Nobelprize like breaking the "Uncertainty" principle would,in my world it's nearly the equal achievement.
Audio Synthesis Passion V - Esoteric HiFi
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I've had a challenge describing and placing "The Truth" in a larger perspective, while remaining with the previous observations and evaluations within this website. Example: More than 5 years ago, in February 2011, I wrote this about the Coincident Statement Line Stage: (The CSLS) "is the most 'perfect' electronic audio device, of any type, that I have ever heard" (italics added). This review raises an obvious question: Has "The Truth" now invalidated that 2011 statement? The short and definitive answer: No.
Tortuga Audio LDR3 v.2 - Duration: 14:42
As for my system, the Audio Alchemy DDE v3.0, with a maximumoutput level of 3.6 volts, and output impedance of 100 ohms(slightly higher than the recommended 25 ohms, but still withinreason) matched nicely with the Passion. The 100kohm load of myMcCormack DNA-0.5 Deluxe and its input sensitivity of 1 volt alsomated well with the Passion. The Sound-Lab Dynastats proved tohave enough sensitivity as well. They are spec'ed at 88dB, andwhile I'm not sure they hit that, in my room I was able to hit95dB peaks with the Passions attenuator at -18dB, as high as Iwanted to go.
Level control was by an Audio Synthesis Passion and a Conrad ..
Hook up is easy, as long as you pay attention to wire type andlengths. Audio Synthesis cautions against using wire runs longerthan two meters, or with total capacitance in excess of 300pF asthis will roll off the treble. Keeping that in mind, I droppedthe little black and brass beauty into my system and let 'erbreak in for about a week before attempting any seriouslistening.
[Reviews] TNT-Audio - Amplifiers tests
To ensure phase accuracy, 1st order crossover slopes are theonly types used throughout the speaker. A major problem withfirst order slopes is that each driver must be able to performwith great linearity well out of its passband. To achieve thistype of driver quality, Dunlavy tests every driver, rejecting themajority and storing the specs for those that pass. Once thespecs are stored, drivers are selected to build pairs ofspeakers. Sets of four woofers, four mids and pair of tweetersare computer selected within a response deviation of less than.25 dB. This accomplishes one more of Johns productiongoals, precisely re-creating the sound of the design master. Thistight production tolerance is one of, if not the tightest in theindustry. It is also tighter, as inflammatory as this sounds itis no exaggeration, by an order of magnitude than several otherhigh end speaker companies.