I'm sure planet10 is a far more reliable source than say genelec, sonos, ascend acoustics, harman, etc....
Insults? Wiggins did some good work for Sonos, but they make shlock, Genelec does some serious work but driven by ts specific market. Harman have a range from crap to superb, again heavily driven by the markets it serves. each has its own experiences and expertise.
I have my own experience and knowledge, deep in places, shallow in others. Hifi is such a large space of budgets/needs/taste. Despite
Full ranges tend make compromises that simply don't need to be made. Just use a damn tweeter and stop going backwards in time/speaker development.
Tweeter adds the compromise of an XO and a physically displaced tweeter. Plus if you are adding it to a FR, the cost of the tweeter & XO.
Many people are happy with their FRs, across all levels of listening experiece & training.You’ll justb have to love with that fact.
dave
Appreciate an explanation why a good fullrange driver cannot be DSP optimized, and more easily than multi-way and coaxial (of the same size-class), for coherent very high fidelity music and transcient response. I don't have DSP (other than smartphone) and am genuinely interested (and have read relevant FIR threads).If one absolutely needs perfect time/phase coherence, than FIR DSP is the cure for coaxials. Nowadays, with cheap DSPs and class D amplifiers, I don't see what is there to object.
On the other hand, some deficiencies of fullranges can not be cured with DSP at all. So the winner is clear - coaxial.
But if one wants simple system, than good fullrange plus a little bit of EQ is viable solution and may bring a lot of musical satisfaction.
Narrow dispersion is a limitation for both fullrange drivers and tweeters at high frequency (wave not much larger than transducer become directional). Fidelity is fundamentally limited by bandwidth -- at the ears. (I've done the KEF LS50 Meta and the holographic coherence zone was still very narrow despite cone-waveguide-distortion-effects.)
OP might consult this long "working" thread on coaxial ragged response, which I hogged 10% (27/269 msgs).
Yes, you've raised many sound caveats but I think equally applicable to traditonal multi-way and coaxial speakers. If my 15" ~94dB-sensitive wideband flat to ~4.5khz were listened to from truly afar, my unobtainium dipole tweeter Naturelle placed on top would have sufficed. But inside ~2m the situation called for coax. This was done during the pandemic before I started aligning acoustic centers. I was convinced the plast-tape ad hoc tulip-waveguide raised the 92dB-sensitive ceramic-dome tweeter by a couple dB and changed dispersion/directivity so that musical instrument tonality was...
And
Even after semi-monopolizing the Fullrange Photo Gallery with multi-way coherent minimalist point-source-wannabe experiments, I still find it puzzling and mysterious -- the cause-effect relationships among time-alignment, phase-alignment, transcient-perfect response, venue-airyness, pinpoint-imaging, and holographic-depth. Perhaps SOTA DSP with rigorous protocol could test, disentangle, and demystify.
I'm convinced time-misalignment reduced perceived depth (and I'm not alone). I can have it all, and pretty quickly, by aligning acoustic centers first, then phase.
It's been truly enjoyable to whip up a coherent speaker or two, that placed musicians quite specifically and beyond the wall, and then to hear and discover new things in old music.
Wiggins did some good work for Sonos, but they make shlock
Uh huh, whatever you say mr, forum person who can never provide data to back up their claims.
Genelec does some serious work but driven by ts specific market.
And that market is people who care about accurate audio reproduction.
Many people are happy with their FRs
I have heard this a lot in DIY audio, and it's probably the most empty statement one could make about a speaker.
You missed my point entirely. My point was that OP, and really everyone here should stop taking anecdotes as evidence of anything other than "This person likes this". OP asked a question that is largely technical in nature, and I provided him with an accurate comparison between two types of speakers and backed up the comparisons with data. Your arguments fall entirely down to subjective anecdotes which really are not helpful in the slightest. How is the OP or anyone else supposed to verify your experiences?
Tweeter adds the compromise of an XO and a physically displaced tweeter. Plus if you are adding it to a FR, the cost of the tweeter & XO.
Yeah that's just not really a problem though. The compromises are full range makes are worse than the ones a multi way creates. If it were the other way around, full range drivers would actually exist outside of ripping off hobbyists and diy forums. It's just not a great way to reproduce audio in various ways.
The days of speaker guru's and such are over. If one cannot provide objective information to go along with their subjective impressions, the info shared is meaningless. You're at home here though because a lot of users just eat up much of the crap that is spewed. I've said about all I need to here, I'll leave you all to it.
accurate audio reproduction
A whole genre there. Often driver my the FR measurement. No one has really defined accurate so we are now into, “how is the data interpreted” particularily with important data MIA.
dave
Seemingly flat amplitude FR chart for a multi-way, but without phase/step/impulse response information, is misleading at best.
I actually have some Lowthers but not front-horn. My PM6A 15ohm Al-coil rolled-whizzer after necessary-double-notch in 17L TLonken sounded relaxing and quite dry (in a high-fidelity way). My PM2A ticonal in Fidelio back-horn sounded excellent but not as resolving/dynamic as my better diys.
I actually have some Lowthers but not front-horn. My PM6A 15ohm Al-coil rolled-whizzer after necessary-double-notch in 17L TLonken sounded relaxing and quite dry (in a high-fidelity way). My PM2A ticonal in Fidelio back-horn sounded excellent but not as resolving/dynamic as my better diys.
p.s. I don't have large classic Tannoy for comparison with Lowther; Precision 8/woof (diy experiment) just so-so. OTOH Faital HF108 CD has wider VHF dispersion horn-or-not but some other issues (to be worked out).
"Too good to be true" tweeter / waveguide available or unobtainium? Thanks.Compare that with the dispersion of a 3/4" dome tweeter in a waveguide.
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Well, since the zero mention on the particular setup and expectations, besides a vague mention of horn and Lowthers,
I will stick to the best answer available when there's no information other than "what's the best?" and the following replies (relevant or not) that are thrown in the mix....
The answer is 42.
I will stick to the best answer available when there's no information other than "what's the best?" and the following replies (relevant or not) that are thrown in the mix....
The answer is 42.
Well, since the zero mention on the particular setup and expectations, besides a vague mention of horn and Lowther
Yep, i said as much.OP seems MIA, s real troll-like question.
dave
There are no good fullranges - it is an oxymoron! 🙂Appreciate an explanation why a good fullrange driver cannot be DSP optimized
Cone brakeup, resonances and restricted high-frequency dispersion variable with frequency are characteristics of all fullranges, which can't be corrected with DSP.
1" waveguides are readily available, but 3/4" can be printed:"Too good to be true" tweeter / waveguide available or unobtainium?
https://josephcrowe.com/products/1324-dome-tweeter-waveguide-3d-cad-file-sb-acoustics-sb19st-c000-4
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Hi, my setup is composed of a 2a3 amplifier and lowther TP1Isis with EX4. I really like its "brightness" and dynamics, but sometimes the high frequencies are annoying. for this reason I wondered how a coaxial of the same diameter would behave in this cabinet. I live not far from factory SICA and I saw that they produce coaxials of that diameter. I thank everyone because each of your answers increases my knowledge.
Because of the uniqueness of Lowther TP1 enclosure it is not easy to replace EX4 with coaxial. Front loading horn part is shaping Lowther driver frequency response complementary. Coaxials by themselves have (more or less) flat frequency response in that frequency range, so when placed in horn that range will be exaggerated. Not a big problem, but it requires accurate measurements and meticulous crossover simulation.
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Not true, obviously:OP seems MIA, s real troll-like question.
Hi, my setup is composed of a 2a3 amplifier and lowther TP1Isis with EX4...
Hi there,
i have made some testing with measurements and listening tests for FR and coax
for budget there is a 8 inch FR chassis around that is unbeatable, lot of threads here for this one
https://www.soundimports.eu/en/sb-acoustics-sb20frpc30-8.html
i tested a lot with the Sonido SFR200A, other price point
for the coax i was lucky to buy some pairs of KEF in France where they were sold for a while as spare parts without the need to show the serial number of the old ones that you need to replace
actively driven with plate amps unbeatable sound quality / price ratio
with a miniDSP 2 X 4 HD with the Dirac Live plugin and an old receiver as 4 channel power amplifier and a woofer / midrange - highrange KEF coax with a simple passive crossover for coax midrange to highrane CO you can get a very nice system for an unbeatable price far better as with a fullrange chassis in the same regoin of budget
here a thumbnal of the test construction of mine

but as always this is only my personal opinion, Stefano
P.S. as of now in the second quarter 2025 for the KEF coax you need to find a decent pair of used KEF speakers and use the chassis, but to find for a decent price you need to be lucky
i have made some testing with measurements and listening tests for FR and coax
for budget there is a 8 inch FR chassis around that is unbeatable, lot of threads here for this one
https://www.soundimports.eu/en/sb-acoustics-sb20frpc30-8.html
i tested a lot with the Sonido SFR200A, other price point
for the coax i was lucky to buy some pairs of KEF in France where they were sold for a while as spare parts without the need to show the serial number of the old ones that you need to replace
actively driven with plate amps unbeatable sound quality / price ratio
with a miniDSP 2 X 4 HD with the Dirac Live plugin and an old receiver as 4 channel power amplifier and a woofer / midrange - highrange KEF coax with a simple passive crossover for coax midrange to highrane CO you can get a very nice system for an unbeatable price far better as with a fullrange chassis in the same regoin of budget
here a thumbnal of the test construction of mine

but as always this is only my personal opinion, Stefano
P.S. as of now in the second quarter 2025 for the KEF coax you need to find a decent pair of used KEF speakers and use the chassis, but to find for a decent price you need to be lucky
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(edit: tweak using SS/Class D not tube amp please!)Hi, my setup is composed of a 2a3 amplifier and lowther TP1Isis with EX4. I really like its "brightness" and dynamics, but sometimes the high frequencies are annoying.
You are welcome. Bottom link has my minimalist XO and notch filter design method. The front-horn mostly enhances midrange so PM6A double-notch should be a good starting point. Notch center frequency ~ 5khz/sqrt(mH*uF); to broaden/deepen use larger mH inductor & smaller uF capacitor etc. See Photo Gallery how I hook up and tweak XO in real-time.
Lowther PM6A (15ohm) was a real pain-in-and-between-the-ears. I had to double-notch (1.5mH|2.7uF|15ohm at 2.5k) -> (0.47mH|0.68uF at 8.7k) to get close to realistic instrumental voices. Of couse still a dry sound, but very clear and even relaxing (!); best plucked attack -3 A+/A /A-.
(minimalist method and simplified formulae)
(Edited)
My "minimalist method" is as follows.
o Android APP Frequency Sound Generator, finger-sweep and compare-by-ear frequency response at multiple points (and against manufacturer's FR curve if available)
o a few typical small-value MKP caps 1 1.5 2.2 2.7 3.3 4.7 6.8 uF add in parallel
o a few typical small air-core inductors 0.15 0.2 0.3 mH add in series
o typical 5 or 10V resistors 1 3 10 ohm add in series
o small electrician's conehead twist-caps / \ to "build" test crossover, sometimes directly over the speaker or amp binding-posts
o banana-plug/alligator-clip wire, connectors...
My "minimalist method" is as follows.
o Android APP Frequency Sound Generator, finger-sweep and compare-by-ear frequency response at multiple points (and against manufacturer's FR curve if available)
o a few typical small-value MKP caps 1 1.5 2.2 2.7 3.3 4.7 6.8 uF add in parallel
o a few typical small air-core inductors 0.15 0.2 0.3 mH add in series
o typical 5 or 10V resistors 1 3 10 ohm add in series
o small electrician's conehead twist-caps / \ to "build" test crossover, sometimes directly over the speaker or amp binding-posts
o banana-plug/alligator-clip wire, connectors...
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Could you share some feedback on that driver? I'm eyeballing it as well, mostly for its high sensitivity (& Sonido's good reputation and pricing)i tested a lot with the Sonido SFR200A, other price point
Hi there!
My best setup from the result of extensive listening tests with an older pair of Sonido SFR200A with the old basket (replaced some years ago with the standard 8 inch basket coming from 3rd party - presumeably chinese) was this here

with the front horn to reduce midrange distortion level and to tame the distinct double peak surrround resonance about 400 Hz ( Sonido use a completely undamped textil surround, with the heavy resonance but the Rms value is almost as high as the value of the legendary Siemens 6ruf lsp 22c 8 inch FR chassis) and a little bit of all over EQ at the listening position done with ROON via software the soundstage was amazing already at very low listening levels and the amount of coloration acceptable ( some people speaks from the characteristic Sonido sound )
hope it helps, Stefano
P.S.: the FR measurements shootout has been done 10 years ago from Bernd Timmermanns of the Hobby HiFi magatine 05 / 2015
My best setup from the result of extensive listening tests with an older pair of Sonido SFR200A with the old basket (replaced some years ago with the standard 8 inch basket coming from 3rd party - presumeably chinese) was this here

with the front horn to reduce midrange distortion level and to tame the distinct double peak surrround resonance about 400 Hz ( Sonido use a completely undamped textil surround, with the heavy resonance but the Rms value is almost as high as the value of the legendary Siemens 6ruf lsp 22c 8 inch FR chassis) and a little bit of all over EQ at the listening position done with ROON via software the soundstage was amazing already at very low listening levels and the amount of coloration acceptable ( some people speaks from the characteristic Sonido sound )
hope it helps, Stefano
P.S.: the FR measurements shootout has been done 10 years ago from Bernd Timmermanns of the Hobby HiFi magatine 05 / 2015
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