The Para­sound P5 and A23 per­form syn­er­gis­ti­cally as an out­stand­ing pre/power duo, with par­tic­u­lar ku­dos due the A23

Australian HIFI - - LAB REPORT - Steve Hold­ing

The same could also be said of power out­put, be­cause the Para­sound A23 proved to be able to de­liver far more power than most au­dio­philes will ever re­quire—no mat­ter how in­ef­fi­cient their loud­speak­ers—with New­port Test Labs record­ing ‘both chan­nels driven’ power out­puts of 147-watts into 8 230-watts into 4 loads and 325-watts into 2 loads. The fact that the Para­sound will de­liver even higher out­put lev­els when only a sin­gle chan­nel is driven mean that it’s ca­pa­ble of even higher lev­els of ‘dy­namic’ power, so you’ll get even more power again on mu­si­cal tran­sients. Im­por­tantly, un­like many com­pet­i­tive am­pli­fiers, the Para­sound was able to de­liver th­ese very high power out­put lev­els at the fre­quency ex­tremes (20Hz and 20kHz), as you can see from the re­sults tab­u­lated in the power out­put ta­ble (and shown graph­i­cally in the bar charts that ac­com­pany this equip­ment re­view). The only point at which the Para­sound re­vealed a lim­i­ta­tion was when driv­ing 2 loads at 20Hz, where the am­pli­fier’s pro­tec­tion cir­cuitry cut-in to ‘limit’ power

In­put sen­si­tiv­ity testing re­turned the volt­ages I’d ex­pect, but I was sur­prised to find that the sen­si­tiv­ity of the un­bal­anced in­puts—31mV re­quired for an out­put of 1-watt, and 345mV in or­der for the am­pli­fier to de­liver its rated out­put—was al­most iden­ti­cal to that of the bal­anced in­put.

Mains power con­sump­tion was fairly high no mat­ter what power lev­els the am­pli­fier is de­liv­er­ing, and peak at 478-watts, but I’d plan on the pair drawing an av­er­age of around 100-watts from your mains in day-to-day use, so less than a cou­ple of light bulbs.

In standby, the pair drew only 0.77-watts, so if mea­sured in­di­vid­u­ally each one would eas­ily meet the Aus­tralian stan­dard for stand-by power con­sump­tion.

Over­all, the Para­sound P5 and A23 per­form syn­er­gis­ti­cally as an out­stand­ing pre/power duo, with par­tic­u­lar ku­dos due the per­for­mance of the A23.

But then given the cre­den­tials of its designer, I would not have ex­pected any­thing less!

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