17 Gloss Cabinet
Definitive Technology launched their ‘Demand’ alternation loudspeakers aback in backward 2017 with three altered bookshelf speakers. Two and a bisected years once they receive veritably broadcast their Demand alternation band with two ground-status audio system and a centermost apostle with the D15, D17, and D5C respectively. The aberration amid the two floor-standing audio system is that the D17 uses hardly ever aloft drivers which have to accord it a piece delivered bass addendum and rarely delivered activating range. In for assay nowadays, we take delivery of the D15. The Demand constructing are peculiar in that they take in a agnate bulk ambit as introduced floor-standing speakers from Definitive Technology, specifically the BP-9000 series. It isn’t commonly that loudspeaker producers take delivery of curve analogously priced inside the aloft corporation.
There are key variations amid the BP-9000 and Demand artefact lines. One aberration is that the BP-9000 alternation use a bipolar architecture area complete is projected from the rear of the loudspeaker. This ought to accomplish for a complete alloyed with added backward reflections which accept been apparent to get entry to adviser envelopment, despite the fact that which can seem at the bulk of a superior soundstage and absolute stereo imaging. Addition aberration is that the BP-9000 alternation uses congenital powered subwoofers. That takes a bulk off of the consumer-furnished amplifier. However, with the prevalence and adaptableness of able and cheap subwoofers, congenital powered subwoofers are brought of an address to folks who do no longer urge for food to allot attic amplitude to face-on my own subs.
In assessment, the Demand alternation is a abundant introduced regularly occurring loudspeaker layout. The exclusion of rear audio system can also accomplish for a introduced acoustically anticipated apostle with bigger imaging and a introduced superior soundstage. The absence of a powered subwoofer location makes association with outboard subs under complicated. So even as Definitive Technology has altered curve software a agnate bulk variety, in my view, they’re altered ample to absolve their availability. Definitive Technology regarded to urge for food to interest a added customary addition to their BP-9000 series, as it should be the acumen for the concept of the Demand belfry audio system.
Let’s recognition on the Demand D15 itself for a moment. At $three,four hundred a pair, they clearly are not bargain but nor are they abundantly big-ticket either. It’s a less complicated loudspeaker structure than Definitive Technology’s introduced ground-standing speakers, and if this artlessness is an barter of complication for university great, that may be a appropriate exchange. This isn’t always to mention that the architecture is simple, and we are able to get into the various factors of its architecture in our ‘layout analysis’ segment, however it is a lot introduced of a suited loudspeaker than the BP-9000s. There are quite a few suited ground-standing loudspeakers in its bulk variety, but, so what does the Demand D15 do to abstracted itself from the rest? Let’s acquisition out…
Upon arrival, the D15 audio system do rate a slight bulk of accumulation by accusation in a metallic plinth to the basal and accusation all-overs into the plinth, however that is handy and takes underneath than five mins. Following admonition on the container, this should be completed afore unpacking the speakers. Unboxing the D15’s famous them to be a conspicuously avant-garde layout. The boxiness of the chiffonier is not at all ashen by means of bend rounding, and, in truth, the structure embraces it with adamantine suitable angles at all corners. This is an accomplishment to adverse the abounding circles of the drivers which are emphasized with atramentous cones adjoin the ablaze aluminum superior baffle. The all-aluminum superior addle provides a real lovely and excessive-stop component to the advent, and, to be honest, I am afraid to acquisition article like that during a apostle at a bulk this low. While the automated architecture truth is hanging, I don’t count on it’s far ‘loud’ in that it becomes the centermost of absorption in fine rooms. For those who urge for food a tamer appearance, the grille hides the superior addle with a light-silver bolt and offers the apostle a abundant brought minimalist look. The grille uses eye-catching adhesion, so it has no grille publications to arrest the tasteless actualization of the superior baffle. With the actualization white accomplishment (a actualization atramentous accomplishment can additionally be had), the grille’d D15 is so basal that it appears approximately like a allotment of abstruse artwork. Normally, I anticipate grilles accomplish the speakers aloof attending dull, but that isn’t always the case right here. Strangely, there are few images of the D15’s with the grille on acquaint to Definitive Technology’s artefact web page.
There are eight” acquiescent radiators on each abandon of the apostle that be given a actualization white cone and are evenly the nicest-looking acquiescent radiators I be given every time seen. The tweeter is an aluminum arch that is partially blocked with the aid of a actualization lens and has a replicate-photograph account in a adequate atramentous faceplate. It about resembles a watch this is attractive off to the aspect. The midrange disciplinarian has a adequate actualization bung that Definitive Technology has acclimated in capable designs. I be given in no way cared for the way it seems inside the past, however come what may it isn’t as visually bulging here. The bass drivers receive a swish-searching carbon cilia cone. Altogether, I anticipate it’s an soaking up attractive apostle with or after the grille. I am instructional that alike bodies who normally article to the actualization of speakers will get forth with these aback the grille is in vicinity. In the Actualization White finish, they might match appropriate in any blithely black decor. All-in-all, the Demand D15 speakers attending simply great.
The Definitive Technology Demand D15 loudspeakers are a three-way floor-status structure that makes use of acquiescent radiators to enhance low frequencies. In such enough strokes, that isn’t a decidedly ordinary design, but there are a host of structure improvements that do set the D15s afar from introduced belfry speakers in its magnificence.
Let’s set off our altercation starting from the pinnacle and hobby down, so let’s allocution about the tweeters. The D15 tweeters use a 1” aluminum arch army in a bank waveguide. The aluminum of the tweeter arch is annealed, which enterprise it’s been ashen via bringing the aluminum abutting to its melting point and again acceptance it to air-conditioned slowly. This hobby dissolves the obvious anatomy of the metal, and, in its recrystallization, it will become softer. In its softer state, it has delivered the damping which can acclimatized alienation modes in university frequencies. It must accomplish for a smoother sound, abnormally with the ones our bodies who’re acute to college acute frequencies. There is a synthetic allotment with partly covers the superior of the tweeter that is a actualization lens that Definitive generation calls the ‘20/20 Wave Alignment Lens.’ Its reason is to dam entire from the tip of the tweeter arch from interfering with complete performing from the perimeters. It should moreover serve as aegis for the brittle diaphragm of the tweeter dome.
The midrange disciplinarian is a five.25” polypropylene architecture this is genuinely altered to Definitive Technology that they alarm the ‘BDSS Woofer,’ which stands for ‘Balanced Bifold Beleaguer System.’ It gets that name due to the fact the cone uses two surrounds: one beleaguer on the conflicting bend of the cone and one inside the abutting bend that attaches it to the actualization plug. Definitive Technology claims that this bifold beleaguer arrangement allows more beeline excursion. In idea, it have to be reachable that two surrounds should accommodate a brought managed ambit from the abeyance additives, although I can’t brainstorm that would accommodate a big get entry to in excursion. This correct midrange actualization bung is additionally article alone obvious in Definitive Technology loudspeakers, and that they alarm it the ‘Linear Acknowledgment Waveguide.’ It’s the larger actualization bung I be given seen, and that is reputedly why Definitive Technology calls it a waveguide, even though it certainly does no longer pastime as a perfect waveguide. It seems to me find it irresistible aloof does what accustomed actualization plugs do that’s blocking wavefronts from the altered areas of the cone from colliding and interfering with anniversary other. It aloof does it lots delivered than accustomed actualization plugs.
For the bass drivers, the D15 uses 5.25” carbon-fiber cones. They attending excellent and accept a able-bodied beleaguer and so they have to be simply able in bass frequencies. They are moreover acclimated to adeptness the two eight” acquiescent radiators on the ancillary of the speaker. Definitive Technology claims a lower -3dB absolute of forty eight Hz for the D15, so these radiators ought to be actual capable bottomward to 50 Hz at the least. I wasn’t capable of get a abutting attending at the bald drivers aback a trim arena covers the anatomy screws, and doing away with the trim arena can be a piece chancy aback it’s miles alert on.
The crossover ambit is a appealing appalling allotment that uses a aggregation of better-high-quality equipment together with metallic-film capacitors and air-middle inductors. There is a second-order acoustical crossover amid the bass disciplinarian and midrange disciplinarian at 450 Hz and a third-order crossover amid the midrange and tweeter at 2.5 kHz. The D15 has sets of 5-manner nickel-plated bounden posts for those who urge for food to bi-twine or bi-amp the audio system. This is a affection that first-rate flush audio system are declared to simply accept however in reality, it isn’t always real useful. The benefits of bi-wiring or bi-amping a apostle like this are negligible and not account the abeyant for issues that may pastime for people who attack the ones types of connections.
All of this era is about in a real sleek MDF chiffonier with the aloft aluminum advanced addle this is 6mm thick. The ancillary panels and animating are all 18mm with the animating cautioned and located with FEA assay for most efficient acerbity of the cabinet. The midrange is amid aural its very own heavily-damped alcove in the chiffonier so that aback after-outcomes from the bass drivers do now not affect the cone role. A appropriate bulk of polyfill capacity is positioned in the chiffonier for centralized damping. The apostle is set on a aboveboard aluminum bass with the quality of acicular all-overs or elastic feet. The chiffonier feels strong and inert.
The Demand D15 speakers attending like a nicely-designed and competent loudspeaker, however, as with every high-stop loudspeaker, its bloodless is in the long run to finish correct. Let’s veritably accord it a be given to look the way it achieves that aim…
In my 24’ by using 13’ (about) alert room, I installation the speakers with stand-off distances amid the aback financial institution and sidewall, and according ambit amid speakers and alert function. The audio system have been installation to stand the alert position directly. Alert ambit from the audio system turned into approximately nine toes. Amplification and processing have been handled through a Pioneer Elite SC-55. No allowance alteration equalization become used. Subwoofers were acclimated for a few agreeable that independent abysmal bass frequencies.
The soundstage changed into exquisite, and anniversary active place changed into evenly localizable.
One hi-res 96kbps/24-bit anthology that I start to be a tremendous recording on Qobuz is a contempo absolution of a few Bach works: ‘Magnificat’ and ‘Cantata No. 63, Christen, atzet diesen Tag.’ This launch, advantaged ‘Bach: Magnificat (Live, Chapelle Royale de Versailles),’ comes from the new classical tune characterization Chateau de Versailles Spectacles, which, as its name suggests, is indignant to performances at the celebrated Chateau de Versailles. The music become executed with the aid of La Chapelle Harmonique, that’s a choir gathered with a duration-device orchestra that changed into founded with the aid of cord equipment novice Valentin Tournet in 2017 (while he turned into a bald 20 years antique). The agreeable adeptness and meeting is extra to none in this recording, and absolutely everyone appealing for a number of the best recorded performances of these portions by using Bach rate attending no in addition.
So how did the Definitive Technology D15 speakers complete with the sort of in a position accumulation of musicians ambitious those admirable compositions recorded in any such allegorical acoustic space? From the aboriginal notes, the entire become enchanting. Anniversary agreeable vicinity changed into audible and brilliant clear. The vocals, strings, woodwinds, brass, and bang had been all so vividly rendered that I can’t recommendation but use the chat holographic, abundant as I try to abstain it in my opinions. Now, abundant of these features are affairs of the recording, so it’s no longer as if the speakers can accomplish an accustomed recording complete amazing, but what I abstruse appropriate overseas is that the D15 audio system will acquiesce an aberrant recording to perform its capability. The tonal antithesis aloft vocals and devices seemed to be real properly. The soundstage turned into brilliant, and anniversary active area turned into evenly localizable. The develop singers had real categorical positions in the course of the amplitude amid the speaker’s placement, and the concert anteroom atmosphere endured able-bodied aloft the speaker’s obstacles. Bass become able-bodied controlled with addendum that evenly blanketed the decrease frequencies independent aural this album. I’m no longer abiding what added one should ask for from a loudspeaker within the replica of ‘Bach: Magnificat (Live, Chapelle Royale de Versailles).’ I be given that a apostle of this structure adeptness strive in a sufficient allowance if tasked with area actual loud degrees, however for a ordinary-sized allowance like my 24’ x 13’ room, that they had all the activating ambit I may want to ask for and could be ideal on this account for all but acute SPL junkies. By the end of this album, I knew that the D15 speakers would be a considerable nice for any lover of classical track.
For article added focused on a audible voice, I begin a plentiful quality in the anthology ‘Birds on a Wire’ by using the duo Dom La Nena and Rosemary Standley who accomplish calm below the call Ramages. This was addition hello-res new absolution that I begin on Qobuz. This is people music this is in general articulate in French however there are a scattering of songs articulate in English, Spanish, Russian, and Italian. The lively accent is sufficiently simple and in general by myself includes a cello and guitar but from time to time added devices will accomplish a contribution. This is simpler song and affable track. Some of the improvement are airy and celebratory, however others are sorrowful, and the cello is a ample equipment to arm-twist unhappiness. Rosemary Standley’s bland delivery is the ablaze of this show, and her making a song is airy and melodic. Her articulate ambit may be sure however her ascendancy aural her ambit is extraordinary.
Standley’s delivery articulate conscientious and beaming on the D15 speakers. Her transport become really beheld in the centermost amid the audio system. There is not any ambiguity in the soundstage of the D15s. The accompanying units additionally had actual categorical positioning. Bass from the plucked cello changed into in a position after fact ascendant at louder volumes. The accuracy of the on my own devices was agitating alike as they took a backseat to the vocals aural the recording. These are attractive speakers, so one anticipation that happened to me became: had been the appealing seems of the apostle biasing my acumen of the sound? Maybe, but normally, I doubtable attractive audio system positioned aesthetics and automatic architecture aboriginal and complete duplicate achievement extra (if alike that aerial up the account in structure priorities), but, the all-embracing whole changed into in a position even as alert to ‘Birds on a Wire.’ These aren’t abundantly big-ticket speakers either. I would accept ample that speakers with bland aluminum superior addle and abject with a actualization accomplishment accumulated with a actively suited complete might bulk brought than the $three,400 MSRP for the D15s. The speakers that I accept heard at audio barter shows that regarded and articulate this applicable had been a long way brought huge-ticket than these. How is it that Definitive Technology is capable of cull off excessive-cease seems and a excessive-stop entire after a high-quit bulk tag? I could assumption the acknowledgment is able architecture accumulated with real in a position accomplishment practices (the abridgement of curvature within the chiffonier may be a absolute gain in authoritative those speakers less costly). About Definitive Technology in a position this feat, I am animated they did.
Some years in the past I had heard some songs from Roberto Fonseca that I clearly enjoyed, and I had consistently counseled to delivered examine brought track by him however it aloof stored bottomward my thoughts. While browsing via Qobuz’s library, I observed Fonseca’s cutting-edge launch, ‘Yesun,’ become handy in hi-res, so I usually absitively to dive into brought of his music to get a larger faculty of him as an artisan and moreover to understand what the D15’s may want to do along with his tunes. Fonseca is a Cuban applesauce pianist who borrows patterns and sounds from abounding altered types of music however runs them through his Afro-Cuban sensibilities. There is a advanced array of agreeable moods and patterns on ‘Yesun,’ and some devious introduced from Cuban Applesauce than others, however the music is constantly active, and the collection of whole and changed instruments truth makes this a considerable anthology to target audience on a high-constancy whole device.
As with antecedent track, the D15s accord a bright and apprehensible presentation of anniversary device, so plentiful so that I was capable of expect microphone bureaucracy with account to abounding of the alone devices. Again, the soundstage was sensational; it beheld over a superior across of amplitude yet now not at the majority of precision. On assertive moments for the duration of the album, I cranked the combination loud, and the audio system did no longer lose their composure. The bang hit with a stomach breeze and thud, and the bass scaled with the mids and acute after compressing. The two bass drivers have been in a position of delivered success than I would take delivery of familiar of five.25” woofers, and I was correctly impressed. This is a percussion-rich track that is abundant for demonstrating the quick appearance of complete systems, and anniversary percussive equipment was audible at the D15s, whether or not that be snares, congas, cymbals, hello-hats, or bass drums. There changed into no vagueness or overhang that I ought to stumble on, and this actual acknowledgment fabricated for a conscientious presentation. As with so abundant abroad that I had heard on the D15 audio system, I became not larboard absent for any aspect of entire in alert to ‘Yesun.’
One new absolution on Qobuz that bent my eye from its appellation is the accumulation ‘Music for Containment.’ It is 33 advance of abstruse and starting ambient tune from artists at the agenda of the French cyberbanking tune characterization Mille Feuilles. This song can be really laborious at instances and might ambit from abatement and calm to acrid and grating. It is aberrant fact and in reality now not for every person’s tastes, but I renowned the evaluation of altered sounds that the artists rent in. There is the sort of array of altered sounds actuality that I anticipation it might be a desirable appearance of the ambit and adeptness of the D15 audio system. The appellation of this anthology makes it all of the delivered apt when you consider that, as of the time of this writing, I am changed into under a Stay-At-Home adjustment in my accent acknowledgment to COVID-19. This typically anomalous song is a applicable absorption of the all-overs of the technology of COVID-19, although I am abiding fine our bodies might undertake introduced escapist track in those instances, and I can’t accusation them.
The stereo fixtures active in abounding of the improvement in ‘Music for Containment’ aren’t declared to be an apery of a accustomed audio occasion, and, as an alternative, they may be acclimated for a brought conceptual aural area. The D15 speakers adroitly conveyed this use of imaging as a agent for an abstraction as opposed to a bald reproduction of a applicable soundscape. I be given to brainstorm that the artists of this anthology apparently regularly occurring pleasant admirers could take delivery of on headphones, however the atmospheres created by means of a set of acceptable excessive-constancy audio system just like the D15s are so considerable introduced palpable. The absolute imaging, as capable-bodied because the introduced correct bass of loudspeakers, accomplish the alert acquaintance a ways brought accurate than with headphones. It’s not reachable to anticipate the advised entire of abounding of the advance on ‘Music for Containment’ due to their ‘Acousmatic Sound’ philosophy. Nonetheless, the D15s did understand this music with a proper college of adherence and articulation. About abstruse the agreeable compositions had been, the complete itself changed into always unambiguous, and the D15s presented a vibrant variation of the supply. Anniversary band of entire remained audible at the D15s, and anniversary entire turned into accustomed a ample rendering. I’m not abiding how abounding our bodies would adore ‘Music for Containment,’ but folks that do care to accord it a receive on audio system at the akin of the D15s; I expect it’s far a plentiful richer acquaintance than headphones can offer.
One cine I watched with the Definitive Technology Demand D15 audio system was the 2018 banana ebook cine ‘Venom.’ I had not obvious it earlier than, but I knew it might be an consequences-encumbered film, and I capital to see what the speakers should do with a advanced activating ambit complete blend. I moreover capital to peer what it is able to do in agreement of bass after a subwoofer. ‘Venom’ is a aloft flat assembly approximately a guy that gets bedevilled by using a loopy conflicting demon affair which gives him superpowers, so it gave the look of it would receive a attractive avant-garde complete blend that could be a suited confirmation of activating ambit and occasional-frequency extension. I cranked the combination and allow ‘Venom’ rip at the D15 speakers, and it wasn’t continued into the cine aback I may want to understand the acquiescent radiators overloading. I certain abstruse that the D15 speakers aren’t blessed in abysmal frequencies at aerial volumes. While I ought to crank music to the aloft loudness ranges and no longer worry, pleasant tune bass does not dig as abysmal as avant-garde cine bass. Music, abnormally acoustic recordings, don’t surely dig ample beneath 40 Hz at aerial degrees, however numerous avant-garde activity and technology fiction films do. Abysmal frequencies are a long way introduced stressful on bass drivers than actuality aloft 40 Hz. I indignant on subwoofers and acclimated an eighty Hz crossover factor for the blow of the movie. Once good enough of abysmal bass obligation, the D15 audio system shined. The Venom characters’ acrobatic actions articulate vibrant, and all of the auto crashes, explosions, and battery were potently rendered. Chat accuracy become appropriate as properly, and to make certain that was a affection of the D15s, I had set my processor for two-channel operation, and no centermost apostle became used. ‘Venom’ turned into a agrarian experience as a ways as whole mixes pass, and the D15 audio system can virtually booty the adviser on that journey- as persisted as their low-frequency barriers are understood.