Shall we get back on topic with sealed speakers? I like this sort of thing, so I'll tell you about a couple of vintage treasures in this genre.
I used to have these popular 1970's Wharfedale Linton speakers, and quite decent they were too.
Simple half section crossover, 4 components. Two for bass, two for treble:
Looks like 1,25mH, 25uF NP, 0.18mH and 10uF NP. Low 1.2kHz crossover to that unusual mylar cone. Bit of stuffing inside and very solid chipboard carpentry.
I then got the bigger Melton, a sort of Dynaco A25 style, which cleverly avoided 25% luxury purchase tax by having a 12" bass which made it fit in the professional bracket:
Just a 0.8mH coil on the bass, and the same treble filter.
I've spent time recreating the Linton with a more modern approach. I use a KEF 2nd/3rd order filter with the 2" Monacor HT22-8 cone tweeter, with a 7.5R/1uF Zobel rolloff for the mellow top end which probably doesn't go above 10kHz. They have what we used to call "a nice TONE". You could swear they are driven by valves, just like the old radiograms.
I used to have these popular 1970's Wharfedale Linton speakers, and quite decent they were too.
An externally hosted image should be here but it was not working when we last tested it.
Simple half section crossover, 4 components. Two for bass, two for treble:
An externally hosted image should be here but it was not working when we last tested it.
Looks like 1,25mH, 25uF NP, 0.18mH and 10uF NP. Low 1.2kHz crossover to that unusual mylar cone. Bit of stuffing inside and very solid chipboard carpentry.
I then got the bigger Melton, a sort of Dynaco A25 style, which cleverly avoided 25% luxury purchase tax by having a 12" bass which made it fit in the professional bracket:
An externally hosted image should be here but it was not working when we last tested it.
Just a 0.8mH coil on the bass, and the same treble filter.
I've spent time recreating the Linton with a more modern approach. I use a KEF 2nd/3rd order filter with the 2" Monacor HT22-8 cone tweeter, with a 7.5R/1uF Zobel rolloff for the mellow top end which probably doesn't go above 10kHz. They have what we used to call "a nice TONE". You could swear they are driven by valves, just like the old radiograms.
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I've been looking at a lot of sealed speakers of yesteryear there are so many I would like to try by acoustic research advent rogers and infinity just to name a few. So many big brands made sealed speaks just up and quit. The same can be said about Boston acoustic. The ones I have from the mid 90s sound better then the couple of modern models Ive listened to. I wasn't very impressed with their modern subs either. Heres some great looking sealed ARs before future shop and best buy were ever around and quality dipped. I may try to seek out a pair. If not something similar.
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Too bad you're not closer. I could let you listen to the large Advents and some from Sansui and Sony and do an A-B test with vented ones like the Dynaco, Mission and Paradigm and see if it really is the sealed sound you like or if a properly implemented vented is ok.
When you heading out west next?
When you heading out west next?
Have you ever listen to Boston Lynnfield 500 L or 400L : closed band pass with two 7" :
fast and deep pass, the second one is my everyday speaker... 35 hz to 125 hz : third order : first mechanical (around 90 hz)+ second electrical order...
Second are near : kef 104/2 : two 8 " ; xo at 150 !
real mid bass for both, second without Cube has only superb mi-bass wich is enough for rock in most home !
If a big boy one day : I dream for VOTT for mid-bass...with a huge closed cabinet only for bass with a simple (infinite) air load...behind the cone ! Just need the money, the room and a house away from neighboors... haha !
fast and deep pass, the second one is my everyday speaker... 35 hz to 125 hz : third order : first mechanical (around 90 hz)+ second electrical order...
Second are near : kef 104/2 : two 8 " ; xo at 150 !
real mid bass for both, second without Cube has only superb mi-bass wich is enough for rock in most home !
If a big boy one day : I dream for VOTT for mid-bass...with a huge closed cabinet only for bass with a simple (infinite) air load...behind the cone ! Just need the money, the room and a house away from neighboors... haha !
Nice.
These are the speakers I bought for my first "real" stereo system back in '76 when I was 16 and recently landed my first "real" job. Pioneer CS-99As. Fifteen inch sealed woofers. They really integrated well in the relatively small room that I had them in. They were a really FUN speaker and at around 95dB sensitivity, the 45 watt Pioneer integrated amp could really light them up.
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Edit: What, you can only attach one image per post?
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Two.
1. The large woofers and satellites next to them.
2. The 4 coloured bass cabinets with the mid/high units on top.
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