The Revel Con­certa2 M16 is an ex­cel­lent de­sign that has been bril­liantly ex­e­cuted and, as a re­sult, de­liv­ered out­stand­ing per­for­mance

Australian HIFI - - LAB REPORT -

The pair match­ing is out­stand­ing, with the left and right traces so well over­laid that one chan­nel ob­scures the other across the en­tire spec­trum. This means ex­cel­lent qual­ity con­trol and sug­gests that imag­ing will be out­stand­ingly good with cor­rect speaker place­ment. It also sug­gests there will be very lit­tle vari­a­tion be­tween dif­fer­ent man­u­fac­tured sam­ples, which can oth­er­wise be a prob­lem with loud­speaker pro­duc­tion pro­cesses.

Graph 5 shows the in-room re­sponse mea­sured by Newport Test Labs, re­flect­ing what you can ex­pect to hear in your own room when lis­ten­ing to the Revel Con­certa2 M16s when they are po­si­tioned well clear of any rear or side walls. This means that if you do move the speak­ers closer to one or more bound­aries you could rea­son­ably ex­pect in­creases in both bass ex­ten­sion and level over what’s shown here. You can see there’s a slight boost in the low-fre­quency re­sponse be­tween 80 and 250Hz, but it’s only 2.5dB so more likely to be heard as a warmth rather than a for­ward­ness. As noted pre­vi­ously, the re­sponse is then spec­tac­u­larly flat from 250Hz up to 5.5kHz, af­ter which there’s a very shal­low roll-off to be around 2.5dB down at 12kHz. The re­sponse then con­tin­ues to roll off to be 3dB down at 16kHz af­ter which it rises again, even­tu­ally to that tweeter res­o­nance at 24kHz which is shown on Graph 2. Over­all, this is truly ex­cel­lent per­for­mance.

Newport Test Labs mea­sured the ef­fi­ciency of the Revel Con­certa2 M16 as 84.7dBSPL at one me­tre, (with an in­put of 2.83Veq) us­ing its stan­dard test pro­ce­dure, which is more strin­gent than that used by most man­u­fac­tur­ers and a bit ‘bi­ased’ against small speak­ers. So it wasn’t much of a sur­prise to find the lab’s mea­sure­ment was some­what was lower than Revel’s spec­i­fi­ca­tion of 86dBSPL, not that 1.3dB is a huge dif­fer­ence! It does mean that in ad­di­tion to the driv­ing am­pli­fier be­ing able to pro­vide cur­rent, it should also be able to de­liver volt­age, so a high-pow­ered am­pli­fier will def­i­nitely de­liver bet­ter re­sults with the Con­certa2 M16 than a low-pow­ered one. The ac­tual power you need will de­pend on your room’s vol­ume and ab­sorbency as well as your pre­ferred lis­ten­ing lev­els, but I’d sug­gest 50-watts as an ab­so­lute min­i­mum, even if you only lis­ten at low-to-av­er­age lev­els in a fairly small room. Over­all, the Revel Con­certa2 M16 is an ex­cel­lent de­sign that has been bril­liantly ex­e­cuted and, as a re­sult, de­liv­ered out­stand­ing per­for­mance on Newport Test Labs’ test bench. Steve Hold­ing

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