ProAc Response D2R loudspeaker Page 2

At the urging of various audiophiles, I recently purchased a pair of 24" Sanus NF24B Natural Foundations wooden speaker stands as an alternative to my 24" nonfilled Atacama metal stands, which I lugged home from England in the mid-1990s. I used both stands with the ProAcs. The Sanus stands created better tone and more generous low-end warmth yet lacked the extreme image specificity and occasionally forward treble brought by the Atacama stands.

Listening
After two weeks of break-in, during which I streamed music from Tidal at a low level on my Asus laptop, the D2R impressed me immediately with its lucid, clear top end, rich-sounding midrange, and, for a cabinet of its size, well-defined and extended bass—and also its transparency: I was surprised more than once by bells, glockenspiel, and flutes that sounded real and live. The speaker delivered a detailed, tangible soundstage that often was larger than you'd expect from such small speakers.

The D2R was open and natural sounding in the treble, reproducing the tone, texture, and sizes of pianos, percussion—and cymbals (particularly drummer Philly Joe Jones's cymbals, on various recordings). I never experienced the speaker's ribbon tweeter as forward, bright, or mechanical sounding, but it was highly illustrative and seemed to have a wide dynamic range. Nary an unnatural zing was heard, even in orchestral crescendos.

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My Cary amplifier and the ProAcs were a good match, the tube amp's liquidity working well with the speaker to produce music without editorializing much, beyond the speaker's consistently rich midrange. Well-balanced and coherent, the D2R let me feel as close to and engaged with the music as any speaker I've had in-house.

Listening to the 1962 production of Richard Strauss's Salome performed by the Vienna Philharmonic Orchestra under Georg Solti (LP, London OSA 1218), the D2Rs impressively recreated the deep, wide soundstage of this large-scale event (recorded at Sofiensaal hall, Vienna), the precise location of each vocalist and the sections and instrumental sections and soloists easily discernible. I imagined myself first-row center as Birgit Nilsson and Eberhard WÑchter moved around the stage, the D2Rs revealing the singers' distances from each other as the orchestra's notes wove around them. As rendered by the D2Rs, this was one of the clearest-sounding orchestral LPs I've heard. (Liner notes by G. Parry and J. Brown, "London Recording Engineers, Vienna," state "our laboratories have been engaged in developing a unique system of mixing, incorporating finger-tip resonance control.") The D2Rs also reproduced the dynamics in the Salome recording; there was never any lack of drama. This is obviously a great recording. The ProAcs presented this recording, obviously great to begin with, at its best.

On the other hand, the D2R's transparency also revealed the ill-defined massed orchestral instruments in the recording of Bellini's Norma with Richard Bonynge conducting the London Symphony Orchestra and Chorus (LP box set, London OSA1394). Where the Strauss set was exceedingly detailed and clear, the D2Rs revealed the muddled nature of the Bellini.

Keith Jarrett and Charlie Haden's Last Dance (LP, ECM 2399 0378 2250), though a moving performance by two jazz masters, is uneven. Through the D2Rs, Haden's acoustic bass sounded big, solid, and buttery smooth. Jarrett's piano, though, was slightly veiled and lacked upper-treble sparkle—which is exactly how this album sounds (to the extent that we can ever know that). The ProAcs revealed its character, flaws and all.

The D2R presented upright acoustic and electric bass, on this recording and others, with exacting faithfulness. Recordings containing well-recorded tom and bass drum, acoustic and electric bass, and synth bass were palpable and natural sounding with good tone and definition. These speakers exposed Haden's genius as faithfully as I've heard it: the weight of his upright bass, the warmth of his sound, the realistically physical sense of touch on his instrument. It made me want to listen to more of his music.

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Belgian singer Mélanie De Biasio's noirish acoustic jazz has owned me the past few months. De Biasio sings with a world-weariness belied by a voice so silky and powerful that it commands attention. On her 2007 debut, A Stomach Is Burning (LP, Igloo IGL193LP), the soundstage is dance-music flat—and so it is here, with De Biasio's smoky voice large and dead center, overlapping the drum kit and piano—again, an accurate account of what's on the record. Indeed, the D2Rs were faithful to De Biasio's vocal on "Never Gonna Make It": thick and husky, like Billie Holiday by way of Nina Simone.

For jazz of a different style and era, I placed Top Trumpets (LP, Jazzland JLP 10), by Clark Terry and Kenny Dorham, on the Kuzma R's platter. Terry and Dorham had very different styles: Terry, the velvet-toned trumpeter whose "Mumbles" became one of the most recognizable characters in jazz, and Dorham, the soulful, gifted hard-bop trumpeter whose career was cut short at 48, with 19 albums his legacy. Each musician is given a side on this rare but inexpensive Jazzland LP. Supported by Johnny Griffin, Wynton Kelly, Wilbur Ware, Paul Chambers, and Philly Joe Jones, this compilation disc (taken from Terry's Serenade to a Bus Seat and Dorham's 2 Horns / 2 Rhythm, both on Riverside) shows the state of the trumpet circa 1960.

The D2Rs excelled at resolving the individual characters of instruments in this Jazzland session, and they had a knack for delivering deep acoustic bass notes—although they also exposed a lack of spatial clarity in the recording, with piano, bass, and drums seeming blob-like. Yet, the ProAcs communicated the recording's drive and low-end wallop—a trademark of '50s/'60s mono jazz LPs—and were transparent to its wide dynamic range.

I've never cared for goth music, post-punk, or art rock, but Dead Can Dance's The Serpent's Egg (LP, 4AD CAD 808), which I recently acquired, is something altogether different. The D2Rs replicated this awesomely scaled, cathedral-sized recording with all its drama, weight, and spaciousness, emerging from the speakers with power and portent. The D2Rs cast "The Host of Seraphim" in a dense, wide, blooming soundstage, the music's modern and medieval-sounding instruments well imaged and layered. The D2Rs made this disc sound big in my smallish room. The speakers delivered the sonics of the record, but also its emotion, in all its dark, pungent, disturbing glory.

The D2R's refined imaging capabilities, good dynamics, and ability to put across realistic tonal colors were evident with Sir Neville Marriner conducting the Northern Sinfonia Orchestra on The Lighter Elgar (LP, His Master's Voice ASD 2638). The speakers presented realistically textured string instruments within a deep soundstage—it seemed that ProAc's ribbon tweeter resolved those qualities without adding harshness or grit of its own—and avoided compressing the recording's realistic dynamic gradations.

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To determine how the ProAcs would sound with something more visceral, I played John Scofield's 1994 double LP, Hand Jive (LP, Blue Note B1 7243 8 27327 1 6). An unguent-drenched jazz recording of guitar, tenor saxophone, bass, and drums, this is Sco at his greasiest. I was struck by the ProAc speakers' reproduction of this record's thick tones and textures, Joe Lovano's sweet, soft tenor tone contrasting with Scofield's biting, jugular guitar. The D2R gave a fully transparent view into this record, reproducing a wide and deep soundstage with large images. Bill Stewart's cymbals were relayed with accurate air and size, and Larry Grenadier's acoustic bass was well scaled, with excellent extension and roundness of tone. The D2Rs did a fine, faithful job with this dark, forceful acoustic jazz, sounding true to both its warmth of tone and its dynamic character.

The D2Rs also reproduced the saturated tones and big low end typical of many recordings of electronic music. On Plaid's 2016 release, The Digging Remedy (LP, Warp Records WARPLP277), the sound through the D2Rs was all creamy tonalities, synthesizer flesh, and relentless musical flow, the speakers sounding bigger than they are.

ProAc meets Schiit
Playing Everything but the Girl's Walking Wounded (LP, Buzzin' Fly Records EBTG010V), the ProAc/Cary combo reproduced the clipped percussive treble, rich midrange, and powerful and extended low-end synths of the record as well as Tracey Thorn's velvety vocal. Through the Schiit Ragnarok 2 integrated amplifier, the percussive sounds became more processed sounding (which probably was the intent), and midrange and bass synths became clearer—the latter also becoming more extended and fuller sounding. Where the Cary played EBTG's music in a generally more liquid fashion, the Schiit cleaned out the room and made it tidy.

Summary
As a reviewer, I try to evaluate components with as much clarity of mind (and word) as possible, giving undue emphasis to neither plusses nor minuses. My time with these speakers was the rare occasion when I found none of the latter. The ProAc D2R demonstrated excellent transparency. Its ribbon tweeter produced an open and extended top end, with nary a grain of grit. When called for by the recording, it delivered rich, characterful midrange sounds and deep, well-defined bass notes. The D2R dependably created a large soundstage, even in my smallish room, with great image specificity. From acoustic jazz and classical to electronica and opera, the ProAc D2R allowed good recordings of great music to fulfill their potential and do what every component should do: let me forget the hardware—and life for that matter—and fall deeply into the music. Very highly recommended.

COMPANY INFO
ProAc Limited
US distributor: The Sound Organisation
1009 Oakmead Dr.
Arlington, TX 76011
(972) 234-0182
ARTICLE CONTENTS

COMMENTS
Bogolu Haranath's picture

KM could try the NAD M10 ($2,750, reviewed by Stereophile) with some of these bookshelf/stand-mount type of speakers ...... The built-in Dirac Live could improve the sound even further, for the already good sounding speakers :-) ........

georgehifi's picture

Is it me or does the older look the better in the tests

https://www.stereophile.com/content/proac-response-two-loudspeaker-measu...

Cheers George

Bogolu Haranath's picture

What measurements of Response Two look better to you? ......... Could you be more specific? ........ I'm just curious :-) .........

georgehifi's picture

A couple,
Frequency Fig3, new is tilted up quite a bit at both ends.
Vertical response Fig5.
Cumulative spectral-decay plots Fig8.

Main one to me would be the frequency +5db boost at 100hz and a rising response from 3khz to 20khz, sucked out between 900hz to 4khz, compared to a very flat +-2.5db from 50hz to 20khz on the old one. The new is typical of a bookshelf trying to be a floor stander, with compromises, where the old with that tweeter and with a sub would be far better proposition.

Cheers George

Bogolu Haranath's picture

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Bogolu Haranath's picture

You are right about the measurements of this new model Response D2R ....... In addition, FR from about 100 Hz to 20 kHz looks little bit like the 'Fletcher-Munson curve' ......... The dip you mention from about 900 Hz to 4 kHz is the famous 'BBC dip' in the presence region ....... There is a serrated FR from about 10 kHz to 20 kHz which could be perceived as treble harshness and hardness by some young listeners ........ This is seen as rippling of the FR from about 10 kHz to 20 kHz in Fig.6, also :-) ........

Bogolu Haranath's picture

Regarding the measurements of the old model Response Two, there are some problems there too ....... There are a couple of dips in the FR in the midrange from about 200 Hz to 1 kHz ....... There is also a 'BBC dip' in the presence region from 1 kHz to 3 kHz ........ There is also another dip in the FR from about 3 kHz to 10 kHz and another dip from 10 kHz to 20 kHz ....... Almost all of the treble region has somewhat serrated appearance in the FR in the old model ........ We can see this as rippling in the cumulative spectral decay plot, especially in the mid and upper treble region in Fig.8, in the old model ........
The KEF LS-50 has better measurements than either of these above mentioned ProAc models ......... However both the ProAc models have larger size mid/woofers, and can go lower in the bass frequencies ......

BTW ..... The name ProAc rhymes with the name Prozac :-) ........

Trevor_Bartram's picture

Many mini-monitors have the 3-6dB bass boost, it is intentional, in that if the bass drive unit is placed one quarter wavelength (at the boost frequency) from the room's rear wall (primary reflector), partial cancellation will occur in the region resulting in a smooth in room response. I don't believe the review mention bloated bass, so placement must have been correct.

Ortofan's picture

... a silk dome tweeter, would measure (and sound) in comparison?

Bogolu Haranath's picture

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Bogolu Haranath's picture

Some of these ribbon tweeters used in some of the various speaker models, seems to have similar problems like these ProAc D2R model ........ One good example is the GoldenEar speaker models reviewed by Stereophile :-) ........

JHL's picture

...is a ribbon, not an AMT.

Bogolu Haranath's picture

My comments were about ribbons :-) .........

JHL's picture

...you don't know the technology any more than why anyone would then jabber about it.

Bogolu Haranath's picture

I mentioned about RAAL ribbons ....... See, below :-) ........

JHL's picture

...none of that jabbering is even remotely relevant.

Bogolu Haranath's picture

There are distortions in some of the ribbons, like the ones used in ProAc and GoldenEar ......... RAAL ribbons are better with less distortions :-) ........

JHL's picture

...the GE doesn't have a ribbon, it has a small AMT. As for the RAAL, implementation is everything, which in the case of a small loose diaphragm is *really* everything.

Even so, this is irrelevant jabbering. So too is making unfounded assumptions about domes.

Bogolu Haranath's picture

Why is it irrelevant when we talk about distortion? :-) .......

JHL's picture

...if we're analyzing distortion and its audibility or if we're jabbering about technology without knowing what it really is and what it does.

Presumably this review goes to the relative success of this product at reconnecting a listener to an original musical event, not whether another product entirely has a "ribbon" in it when it does not. Same for domes when we make completely unfounded and irrelevant remarks about them. Nobody cares, nor should they.

Bogolu Haranath's picture

GoldenEar (GE) specs say 'High velocity folded ribbon (HVFR) tweeters' :-) .........

JHL's picture

...can also call it a ham sandwich. Nobody stopping us.

*Flat* drivers exist in at least four different technologies, ribbons being one and AMT's being another. They work differently, they're used differently, they measure differently, and they sound different.

Jabbering about them as a lump sum is irrelevant to the point of a review like this by a number of orders.

ChrisS's picture

...think "Sheldon".

Bogolu Haranath's picture

More specifically 'Sheldon Comics' may be? :-) .......

ChrisS's picture

....more like Sheldon in TBBT.

Endearingly.

Bogolu Haranath's picture

'Dunning-Kruger effect', (illusory superiority) may be? (see, Wikipedia) :-) ........

ChrisS's picture

...that either.

Bogolu Haranath's picture

BG/BGR 'Boy Genius :-) ......

ChrisS's picture

Other people need to understand what "Sheldon" is about.

Bogolu Haranath's picture

'Wunderkind' ....... May be like Mozart who started composing at the age 5 :-) ........

ChrisS's picture

...of Sheldon's.

Bogolu Haranath's picture

So, JHL is one of them? :-) .......

ChrisS's picture

Follow my posts.

Bogolu Haranath's picture

I think JHL is more like 'Patrick Star' :-) ........

ChrisS's picture

...fun!

That's all we need to know.

Bogolu Haranath's picture

Bart Simpson could also fit the description :-) ...........

Bogolu Haranath's picture

May be a little bit of Bugs Bunny too :-) .......

Bogolu Haranath's picture

Distortions about domes is also relevant topic for discussion ......... Unfortunately, your comments are incoherent :-) ........

JHL's picture

It just ... need they, moar cow bell ;o) ........

Bogolu Haranath's picture

Q: Why do cows wear bells? .....
A: Because their horns don't work :-) .........

Bogolu Haranath's picture

Wilson Audio uses silk dome tweeters in their top models Alexia2 and Alexx speakers ....... Those tweeters have some rippling problems too, in the mid and upper treble regions ....... See the Stereophile measurements :-) .......

Bogolu Haranath's picture

Wilson Audio all models reviewed by Stereophile use silk dome tweeters ....... All those tweeters have problems, especially in the mid and upper treble region, seen in the measurements :-) ......

Bogolu Haranath's picture

Revel Performa F208 ($5,000/pair) which has Aluminum dome tweeters has better measurements than some of the above mentioned tweeters :-) ........

Bogolu Haranath's picture

Also, KEF LS-50, which has Aluminum dome tweeters has better measurements :-) .......

Bogolu Haranath's picture

Alta Audio speakers (reviewed by Stereophile) use RAAL ribbon tweeters ........ The tweeter itself shows fairly clean measurements :-) .......

Another speaker reviewed by Stereophile, ADAM Audio speaker ribbon tweeters, also measure well :-) ........

Bogolu Haranath's picture

Recently reviewed Sonus Faber Olympica 1 uses 'damped-apex silk-dome tweeters' ........ Those tweeter measurements look very good, including clean spectral decay plot ......... May be Wilson could switch and use that type of tweeters :-) ........

JHL's picture

JA, instead of 'acoustical polarity', would it be more precise to refer to driver wiring as inverted or non-inverted 'DC polarity'? The acoustic or AC signal in the DUT show the drivers to be in-phase, however depending on design their DC wiring can take a number of forms...

Bogolu Haranath's picture

Like 'Optimus Prime', perhaps? :-) .......

JHL's picture

...can't stop yourself, can you.

Bogolu Haranath's picture

I got that 'can't stop virus' from you ...... It is 'contagious' :-) ........

ChrisS's picture

...engaging with "Sheldon".

He really can't help himself.

Bogolu Haranath's picture

I just don't want JHL to build a nuclear power plant with the DC wiring wrongly connected :-) ........

ChrisS's picture

...some people don't appreciate your humor or your comments and get annoyed at you.

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