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db101


The Rogers Loudspeaker db101

From "Listener Hi-Fi & Music Review Autumn 1997".

Most people associate Rogers with tradition. There's that too, but the dB101 is something altogether different. Review by Chris Beeching.

Rogers dB101 loudspeakers: $399 per pair. Distributed by Rocelco Inc., 24 Viceroy Road, Unit 1, Concord, Ontario L4K 2L9, Canada. (905)738-0737 http://hi-fidelity.com

Rumour has it that all speakers should look and sound the same (i.e., just like real life) and be unobtrusive. Some prefer to have speakers that make a statement, either about their wallet, their ears, or their dramatic prowess. (i.e., I can persuade the wife to tolerate anything.) There comes a time, however, when these things don't fall quite so readily to mind. The Rogers dB101 is a case in point.

Sculpted to vaguely resemble that most macho of all male accessories, a motor racing helmet (you mean you don't have one at home?), all aesthetic considerations end there. Resemble a motor-racing helmet it does, but allusions to high speed or noise and fumes go no further than this. This is a small, affordable, but seriously intended speaker whose pretensions far outshine the near-boombox styling in favor of appealing to a much more refined and serious home-decor-inspired hi-fi.

It would be hard to hide a pair of dB101s. However, with the wide variety of finishes (including such choices as 'Music Red', 'Rich', and 'Opal'), it is relatively easy to integrate into a room no matter what the decor. It fits in mainly because of its style acceptability, in that it is quite unlike the traditional box. With its rounded relief, its smallish dimensions, and its light physical weight, it can be perched in places where more ordinary speakers would rapidly come to grief.

Electrically, it's quite efficient, nudging the 92-dB/Watt sensitivity point. And with a power handling capacity of some 25 to 125 Watts, it should suit many, many applications. It's also intended for some less domestic situations, its weight is a mere 5 pounds, so arrays of them can be installed into pubs, clubs, discos, and the like with little strain on traditional single speaker fixing brackets.

Inevitably, perhaps, there's a downside to this little gem, and that's the lack of bass extension. But, dear reader, take heart. There is on the horizon (but as yet still wearing the dark glasses of disguise) a subwoofer in the offing. Apparently, the difficulty had been in matching the speed of the sub to the dB101.

But more of that later.

As you now most likely know my systems, the dB's were connected up, and given a nice long weekend to run in. The fiddly bare-wire clips weren't to my taste. But then, heck, you can't have everything in life. When serious (ha! serious) listening began, boombox music was the last thing that sprang to my mind, no matter how prevalent it may have been in my pre-listening thoughts.

Here was a refined speaker, capable of great dynamics, of stunning imaging and considerable poise and finesse.

It's true that the bottom end was lacking a little weight and that the support of a judicious sub would pay huge dividends, but the "rest" of this speaker is superb. It doesn't matter what sort of music you play or like, if you can make allowances for the lack of extreme low frequency production, then the dB101's won't fail to please. They match the clarity of a single-ended amp in the midrange and they have the speed and slam of the push-pulls in the lower end they can clout and punch with solid-state authority and be subtle and intimate with the very best of any design. Their transparency is commendable for a cone design and they can reveal quite clearly any difference in recordings - a facet missing in many "superior" designs.

Over a longer time period, the lack of bottom end with heavy rock material could become a little irksome, but (surprisingly, in many respects) its presentation was not so damning in the classical and jazz arenas. The area in which they really excelled, though, was vocals. Somehow, Rogers have got the mix just right. Whether I chose the smoky sound of Linda Rondstadt singing jazz, Karla Bonoff or Mary Black with more "folky" material, or such divas as Annie Lennox, the presentation was nothing short of tremendous. Male vocals were also well presented; the greatest test for me has always been BBC Radio 3's presenters: Any chestiness and the product's too bass heavy. Any undue sibilance and the highs are too sharp. But here they were just right, almost as if I was listening to them right before me. Commendation indeed.

There is another way to produce more bass by the way. The dB101 has a neat bracket arrangement so that more than one can be mounted on the same stand. In fact, up to four can be accommodated in this way. The "radiating area" is thus considerably larger, and much more bass (though still tight, deep and clean) is the benefit with no detraction from the original comments about speed and transparency. And they're still cheap enough in this guise to make multi-speakering a viable option.

In truth they're a near to mid-ground monitor; get too far away from them and they start to lose their punch, get closer to them, and they perform really well.

Audition before you buy, as with any product, but make sure your preconceptions are well put away, otherwise they'll have you really tied up in the "a speaker this size shouldn't do this" argument. And you'll find out that this speaker wins hands down.

Quality: * * *

Value: * * *

   



GS6

"Rogers delivers Acoustic Gold."
What HiFi?, December 1997

4.5 Star Rating:
Rogers GS6 Loudspeakers £430
For: clarity, poise and price
Against: dry and overpolite driving beat-based music
Verdict: Good-looking floorstanders with great appeal for fans of classical and acoustic music

Following a successful What Hi-Fi? debut with the GS5s in October, Rogers' Gold Series takes its next steps up the loudspeaker ladder with the GS6s. These are three-way designs, adding a second 12.5cm polypropylene cone, housed in its own chamber and vented via a large port at the front. The aim is greater bass extension without losing the inherent clarity with which the GS5s are blessed.


To that end, the GS6s are a great success, exhibiting many of Rogers' traditional, much-admired attributes -- articulate expression, unforced realism, a sense of refinement and poise. Treble detail from their 19mm silk dome tweeters is sufficient to give the listener fine insight into acoustics and instrumental timbre, while bass goes deep yet avoids the over-emphasised boom suffered by many competitors. Play the last moments of Elgar's First Symphony and the Rogers capture its climactic scale with biting, rasping brass and deep, pounding timpani.


Their soundstage depth and midrange coherence paint a vivid picture of vocal music, giving Kristin Hersh's Your Ghost terrific foregound vocal presence, amid crystal clear guitar and deep, distant percussion.


With more urgent rock and dance music the GS6s come a little unstuck, The Verve's Urban Hymns sounding more congested and less emotive than it should, and the Wired dance compilation failing to rock the room. The GS6s remain clear and articulate, but don't affect your pulse.


Driving the GS6s is easy thanks to 90dB/W/m sensitivity and impedance of 8ohms, but they're best matched with amps that match their articulate air. With Marantz's PM-66 KI-S for example, few floorstanders under £500 provide such a balanced sound for acoustic and classical music.


 

The Inner Ear Report

 

 

Model LS 3/5a and
AB1 Matching Subwoofer

Source: Rocelco Inc.
Price: $1,500.00 and $1,200.00 (sub) Cdn., $1,100.00 and $900.00 (sub) US
Rating:* * *

Now here is a famous name which hasn't had much mention in the audio press of late. However, those of us who have been around long enough have never forgotten the Rogers name. This UK loudspeaker manufacturer has a 50 year history and Rogers monitors are still used by many broadcasting systems around the world — and for good reasons, as we shall see. For a couple of decades, the LS3/5a under review has been universally accepted as the reference for mini monitors.

It all began when Jim Rogers established the company in 1947. His designs quickly established a reputation for combining technical competence with rich and warm natural sound and, in the process, set a precedent for British audio worldwide. Rogers established what became known as "the British sound" here in North America. In the early seventies, Rogers was commissioned by the BBC to produce the industry-renowned LS3/5a and to date, over 50,000 pairs have been manufactured. Other collaborations followed, creating a range of products that have become standard equipment in recording studios around the world. Little has changed over the years when it comes to the LS3/5a.

Appearance:
The main speakers are 12 inches high, 7.5 inches wide and 6.75 inches deep and weigh 12 pounds each. The matching bass cabinets offer identical footprints and stand 23.5 inches high including the (included) bases. These bases hold the bass enclosures and "spike" them to the floor. Although there are connecting screws to bolt the enclosures together, we used Blue Tack between the enclosures to stack the two cabinets without implanting cabinet resonances to the assembly. When the bass enclosure and the main loudspeakers are stacked together, they stand 35.5 inches high and offer the appearance of small "towers" with tiny footprints — mini-monitors which can be placed in the smallest of rooms.

Technology:
The LS3/5a is a two-way air suspension system operating in a damped, braced birch cabinet which reduces resonances and optimizes conditions for the drivers. The bass/midrange driver is a 5 inch Kef B110. The tweeter is a KEF T27 1.5 inch unit. Both are computer selected and graded. The crossover is also made by KEF — the BBC FL 6/38~2128 — a 26 elements computer-tested network. Frequency response is quoted from 70Hz to 20KHz (+/- 3dB).

Few manufacturers list distortion figures as they tend to be quite high with most loudspeakers. However, there are impressive specs for the LS3/5a — less than 3% (2nd and 3rd) harmonic distortion at 90dB S.P.L (from 65Hz~20KHz). An unusually high impedance of 11 ohms is quoted for the LS3/5a. The sensitivity is 82.5dB S.P.L with max. output at 2m of 95dB. Rogers recommends amplifiers rated from 25 to 100 watts. However, we found that amps rated from 50 to over 100 watts/channel do better justice to these monitors. The subwoofer, the AB1, is a passive sub-bass, designed specifically to augment the performance of the LS3/5a and is sold in pairs. The cabinet is constructed with customary care, featuring 18mm damped medite. A single midrange/woofer covers the frequencies from 55 to 120Hz (+/- 3dB). Divided by a second-order crossover at 120Hz, the system impedance is 8 ohms nominal, with a sensitivity rating of 82dB. The entire system can be connected with single wiring or, if you choose, bi-wiring.

The Sound:
We connected the Rogers to a Polyfusion 960 amplifier at 200 watts, a Bryston 8B strapped to deliver 400 watts, a Copland amplifier rated at 100 watts and the integrated amplifier from Audio Refinement rated at 50 watts. A Copland CD player and an Alchemist CD/DAC served as source components. Interconnects and speaker cables were by Straightwire and Nordost Flatline. Our auditioning material ranged from blues to classical music to determine the Rogers' ability to handle different program material. The Rogers sounded best with the Polyfusion amplifier, followed closely by the Bryston, the Audio Refinement and the Copland. However, the LS3/5a's personality came through with all amps. Indeed, the sonic character can be described as uniquely Rogers. The LS3/5as deliver refined and sophisticated high frequency information in line with the best and most expensive loudspeakers to which we have listened. With all musical material, these speakers sparked our panelists' recognition of smooth sound and total absence of irritating properties. This attribute continued in the midrange regions and manifested itself as an effortless and balanced flow of musical data. Sometimes, this distinction often results in slight masking of important inner detail; but not with the LS3/5a. It is difficult to explain that "smoothness" of sound doesn't always represent accuracy, but rather, it should describe an attribute. When this attribute (smoothness) is coupled with a loudspeaker's revealing quality (there aren't a lot of loudspeakers that can handle this combination) the results are stunning. The Rogers offer sophisticated sound, as well as enlightening inner details information under all kinds of conditions. Bass information is robust down to the specified 55Hz. There is enough energy below 55Hz, but definition is limited. Resolving deep bass (an organ's pedal notes for example) can't be achieved in its entirety with the sub and satellite speakers. However, there is enough determination in the bass that the missing resolution doesn't distract from the Rogers' outstanding musical presentation. Then there is the imagery. The LS3/5as render an outstanding multi-dimensional image with well defined boundaries, excellent focus on instrument and voices and exemplary front-to-back layering. It's possible to count the rows of musicians when listening to large orchestration. There is only one thing the Rogers can't or won't do — they'll not sound great with heavy metal or rap music.

Synopsis & Commentary:
The LS3/5as' original design set a benchmark and, according to our Editor, were the model for what developed into the British sound perpetuated by firms like Spendor, Kef, Celestion and many other British manufacturers. In the mid seventies, most of the better retailers offered a good mix of the American east and west coast sound. East coast included the Advents, Acoustic Research, KLH and later on EPI. The west coast sound was best represented by firms such as JBL and Altec Lansing. The British sound, however, was always regarded as the most sophisticated and the leading hi-end loudspeakers from England invariably included the Rogers brand. Over the years, the LS3/5a has been updated, resulting in better all-round definition, better resolving caliber and, with the help of the AB1 subwoofer, richer, more full-bodied sound. One of our panelists said that the sound of the LS3/5as was exactly what he had been looking for. He bought a pair and connected them to his Celeste amplifier which seems to be a match made in audio heaven. We suggest that you audition these fine British loudspeakers with upscale electronics — solid state or vacuum tube rated at about 50 watts — to get the best results. Use upscale cables and good quality source components and listen to these babies sing.