Anyone experienced the Luxman A-2003 tube active crossover?
Why HiFi manufacturers don't make active crossovers anymore?
Hello to all,
On the recent days, I noticed that a lot of manufacturers of Hifi 2 channel systems, had plenty of options in a not so long past, of active crossovers, like Luxman, Accuphase, higher end Sony stuff, and many more, why do you think HiFi manufacturers abandoned the inclusion of active cross overs, channel dividers, in their lineup?
Accuphase still makes a digital one.
Appears that this devices are only still relevant in the Pro Audio world, why Home HifI abandoned the active cross over route? It's correct to assume that?
I think that can be very interesting tri-amp a three way loudspeakers with active cross overs, would like to know more about it too...
Share your thoughts about the subject, experiences in bi-amp and tri-amp with active crossovers and etc....
Thanks!
On the recent days, I noticed that a lot of manufacturers of Hifi 2 channel systems, had plenty of options in a not so long past, of active crossovers, like Luxman, Accuphase, higher end Sony stuff, and many more, why do you think HiFi manufacturers abandoned the inclusion of active cross overs, channel dividers, in their lineup?
Accuphase still makes a digital one.
Appears that this devices are only still relevant in the Pro Audio world, why Home HifI abandoned the active cross over route? It's correct to assume that?
I think that can be very interesting tri-amp a three way loudspeakers with active cross overs, would like to know more about it too...
Share your thoughts about the subject, experiences in bi-amp and tri-amp with active crossovers and etc....
Thanks!
Showing 18 responses by cosmicjazz
I’m seriously considering this, instead of build the passive cross over for my speaker project... http://www.accuphase.com/cat/px-600e.pdf http://www.accuphase.com/historys/pdf/cx-260e.pdf http://www.accuphase.com/cat/f-25en.pdf This multi channel amp and active crossover, would like to know more about if this example can be a more easy solution to divide the frequencies for the speaker’s drivers, instead of build the passive crossover for the woofer, radial horn, and super horn tweeter, as is suggested on the Fostex speaker’s plan. https://www.fostexinternational.com/docs/speaker_components/pdf/recom_enclose/w300aII_encl.pdf More, easy, straight forward configuration, but more expensive for sure... well this amp, preamp and active crossover from Accuphase I found some to sell occasionally on the web, sometimes the preamp and the active crossover appears at a more reasonable price in Japan I think.. Anyway, what do you think about this solution for a 3 way loudspeakers? I noticed that on the PX-600 brochure, Accuphase shows a picture example with this devices used with 3 way speakers system, with the exactly same design of the ones that I will start to build, take a look... maybe this says something? probably a good match? All components are from 2001, then, they are soooo vintage to worries about repair, recap, and etc, if considering very well cared units, the F25 is from late 90’s but was re-released in 2005. Let me know your thoughts about, very interesting stuff.... |
Was taking a look at the 6 channel amp Accuphase PX-600, I think it's from late 90's, and wondering how amazing can be the option that is showed in there, an example of use this amp with the matching channel divider with three way speakers system... http://www.accuphase.com/cat/px-600e.pdf |
Interesting guys, thanks for the thoughts, will check it out the article that you shared.. Let me know what do you guys think about the Accuphase option that I posted above? Take a look at the brochure, and their option of use the PX-600 amp with the analog active crossover with 3 way speakers (the one with horns) I was thinking that example, would be a very straight forward and easy to configure, If compared for example: to build the exactly loudspeakers showed on the picture with passive crossovers... What you guys think would be more easy to configure? To build the passive cross over for a loudspeaker like that, or to cross over the drivers frequencies using the F-25 and amplify with the multi channel PX-600? http://www.accuphase.com/cat/f-25en.pdf I'm planning to build the loudspeakers with the same configuration of the one showed on the brochure of the PX-600, a 3 way, composed of 12" Woofer, Radial Horn, Super Horn Tweeter. I have the passive cross over plan, but thinking about the route of to use the PX-600 and F-25. What you guys thins about the pros and cons of the 2 routes? I have no experience in build a cross over, so I was thinking that the route of PX-600 and F-25, will me more easy, no? Thank sirs. |
Thinking about that can be interest we make a list about HiFi manufacturers that offered active crossovers aka channel dividers (as is described by some HiFi manufacturers from Japan), it can be current models or vintage. Let’s stay with HiFi manufacturers only, no Pro Audio. I will start with: Accuphase Sony Pioneer Luxman Threshold Mark Levinson Cello Technics? produced any in the past? can’t find.. |
Amazed how this thread grows.. Guys, I was checking some speakers projects on the web, builders that share their systems, found a interesting website focused on that, check this out: http://www.homebuilthifi.com/project/18754 When I look at this particular project, this makes me think, wouldn’t be much more straight solution, if that guy opted in go active? I think go active isn’t all necessary a complicated solution, in fact, can be much more straight forward.. I think this system must sound very very nice, but I don’t think If I dig all the mess of all this amps going trough the DIY passive crossover that the guy designed for it... What do you guys this? An active solution wouldn’t be a much more elegant way to cross and tuning the frequencies response on this huge 5 way speakers? |
Hey guys, please, appreciate if someone can solve a doubt of mine, when considering this amp: http://www.audioscope.net/pioneer-m73-class-power-amplifier-p-1759.html in a multi amplification situation.
Here's the situation:
Considering a pair of 3 way loudspeakers, 12" woofer + radial horn + super horn tweeter, it's possible to amplify the 2 radial horns + 2 super horn tweeters, with just one Pioneer M-73?
I'm asking because I see 4 A + B speakers terminals on the back, and on the front, I see that is possible to select the A + B speakers at the same time...
It's possible? or I'm interpreting this wrongly?
Many thanks! Best regards. |
Sorry, but my doubt is not considering a active crossover situation... I forgot to tell that the application that I described, is considering speakers with passive crossovers... Anyway, I think I already found the answer, the M-73 is not a 4 channel amp, it’s a stereo amp, I was thinking that was a 4 channel amp because of the looks of the amps boards inside, it was appearing for me 4 independent amp blocks, and was thinking that each of the 4 speaker’s terminals was connected into each block... So in fact, if use the M-73 to amplify 4 speaker’s drivers (left and right horns and tweeters), it can be done, just connect each driver to the respective speaker’s terminals, and activate on front panel A + B speakers together, but it will be bi-wiring, not bi-amping. |
even Marantz offered a active crossover in the early 80's... amazing: http://www.thevintageknob.org/marantz-Ad-6.html wish the mass HiFi brands return to produce such amazing lineup of products, how Pioneer, Sony, Marantz, JVC, Denon, made it.. Unfortunately that's not gonna happen hehehe |
I would like to know more analog crossovers similar to this models from Fostex, EN3000 and EN3020, EN3000 appears regularly to sell in Japan, the more sophisticated one EN3020 it's much more hard to find... Anyway, would like to know more units with similar characteristics like this ones, very straight forward 3 way, easy to use. For those who not know this Fostex, here they are: EN3000: https://www.hifido.co.jp/sold/14-84210-27250-00.html EN3020: https://www.hifido.co.jp/sold/11-62786-28291-00.html?LNG=E Thanks. No DSP's recommendations please. |
Would like to know more active analog crossovers similar to this ones, in specs, and layout functionality, anyone have more recommendations? No DSP please. Fostex EN-3000 https://audio-heritage.jp/FOSTEX/etc/en3000.html Pictures: https://www.hifido.co.jp/sold/17-11127-51780-00.html?LNG=E Specs: Model Channel divider Specifications 2-3way electronic dividing network Bandpass characteristic 18dB / oct Input impedance 47kΩ Input sensitivity 0.5V (rated output) Rated output 1V (Low: 100Hz, Mid: 1kHz, High: 10kHz) Maximum output 8V (+ 18dB / dBV, distortion 0.05% or less) Output impedance 470Ω Total harmonic distortion 0.005% or less (rated output) Crossover frequency 2way-1: 500, 650, 800, 1.2kHz 2way-2: 2k, 3k, 5k, 8kHz 3way: 500, 650, 800, 1.2kHz (Low / Mid) 2k, 3k, 5k, 8kHz (Mid / High) Output phase switching 0 °, 180 ° (Low, Mid, High) S / N 100dB or more (IHF-A) Input / output terminal RCA pin terminal (pure gold plating) Power supply AC100V Power consumption 4.3W Dimensions Width 482x Height 44x Depth 235mm (19 "/ 1U Standard Rack Mount Size) Weight 3.5kg Fostex EN-3020 Pictures and specs: http://www.audiocostruzioni.com/r_s/accessori/fostex-an3020-crossower/fostex-en3020.htm Manual available here: https://www.fostexinternational.com/docs/tech_support/manuals.shtml Thanks. |