What was the purpose of having such closely configured offerings?
How were they positioned to fit in the market?
Where would this thread be positioned on Lansing Heritage forum?
(I don't know my way around there.)
Thanx
How were they positioned to fit in the market?
Where would this thread be positioned on Lansing Heritage forum?
(I don't know my way around there.)
Thanx
Yes maybe better over there. This is a DIY forum.
But to me, those 3 models have different uses. Why do car companies offer different models on the same chassis?
But to me, those 3 models have different uses. Why do car companies offer different models on the same chassis?
A7 is generic for A7-8 [800 Hz horn/XO] and A7-500 [500 Hz/XO] and all its myriad variants depending on the HF horn, driver, woofer and XO used, all with same small mid-bass horn, reflex port [825 or 828 cab often mislabeled as A7]. Originally designed as a small cinema speaker, but was so popular for so long that it was used in recording studios, various prosound apps and the A7-500 in the fine furniture 'Magnificent' consumer speaker.
The M-19/M-19U was a consumer speaker and its utility cab variant for recording studio/prosound apps in a last ditch effort to keep the by then old tech HE horn speaker competitive.
I don't know what you want WRT 'positioned on Lansing Heritage forum'. The Altec Users forum is where the most knowledge resides: Altec User's Board
GM
The M-19/M-19U was a consumer speaker and its utility cab variant for recording studio/prosound apps in a last ditch effort to keep the by then old tech HE horn speaker competitive.
I don't know what you want WRT 'positioned on Lansing Heritage forum'. The Altec Users forum is where the most knowledge resides: Altec User's Board
GM
I picked up a pair of 811B's to start a DIY 2-way horn reference monitor project. I am trying to decide what to do with them.
I see where this horn is like a blue blazer and can be dressed up or down. It can be matched with different trousers, shirts, and ties, bass cabs, drivers, and crossovers, for a night in a movie theater, disco, or home.
I am trying to get a sense of how to dress them for my home living/dinning room 13x30' with 8' ceilings/carpeted floors. Being the professor type the walls are mostly all bookshelves and books creating an expensive wall treatment that is pretty dead. The listening area is one end of the room and seating is likely about 10' from the monitors. That end is partially open to other rooms and the speakers will be out from the walls so corner loading is not possible.
I have been in contact with Jeff Markwart who is very encouraging. The sand filled surround for round one of the Exemplar Project is straight forward and makes sense. The main decision at this point is what bass cab to build. This is not a clone project and the history of Altec is a guide for cab options. Although there are options with the 811B's as well.
My 811B's are fitted with 806-8A drivers. They likely came from Valencia monitors from my reading of the Altec literature. There is a range of opinion out there on this driver, (mostly "Meh"), but it's what I have. One of the drivers needs a new diaphragm so off to Great Plains Audio they both will go. There is a choice of diaphragms for this driver and y'all are encouraged to weigh in.
Because this room is on the small side it does not take much to fill it. A Fostex FE126 is pretty adequate for most things. But I thought it would be satisfying to sit the 811B on top of an 15" or 18" woofer as I have never owned one.
I have been looking at lots of options. Because the cost of a good crossover, purchased or DIY is significant, and because I have a choice of amplifiers already, I will be buying a miniDSP. So, efficiency and SPL are not as challenging as they might be with a passive crossover in matching to the horn. My musical tastes are eclectic. I am on a serous Salsa jag at present, just having come off one of Indian classical music. Well, when not listening to garage punk or stadium rock. But my goal for this bass cab is to fully handle Poulenc's Organ Concerto in G. With 18" drivers this leaves little room for an additional subwoofer in the room. They will be crossed at 800Hz.
Drivers up to around $200 each are available from Eminence and Faital for instance. And I look forward to suggestions. Actually, I look forward to specifications or links to plans. I am a woodworker with a audio problem. There is nothing I can't build. These simulation programs, Hornresp, et. al., are beyond my ken.
I see where this horn is like a blue blazer and can be dressed up or down. It can be matched with different trousers, shirts, and ties, bass cabs, drivers, and crossovers, for a night in a movie theater, disco, or home.
I am trying to get a sense of how to dress them for my home living/dinning room 13x30' with 8' ceilings/carpeted floors. Being the professor type the walls are mostly all bookshelves and books creating an expensive wall treatment that is pretty dead. The listening area is one end of the room and seating is likely about 10' from the monitors. That end is partially open to other rooms and the speakers will be out from the walls so corner loading is not possible.
I have been in contact with Jeff Markwart who is very encouraging. The sand filled surround for round one of the Exemplar Project is straight forward and makes sense. The main decision at this point is what bass cab to build. This is not a clone project and the history of Altec is a guide for cab options. Although there are options with the 811B's as well.
My 811B's are fitted with 806-8A drivers. They likely came from Valencia monitors from my reading of the Altec literature. There is a range of opinion out there on this driver, (mostly "Meh"), but it's what I have. One of the drivers needs a new diaphragm so off to Great Plains Audio they both will go. There is a choice of diaphragms for this driver and y'all are encouraged to weigh in.
Because this room is on the small side it does not take much to fill it. A Fostex FE126 is pretty adequate for most things. But I thought it would be satisfying to sit the 811B on top of an 15" or 18" woofer as I have never owned one.
I have been looking at lots of options. Because the cost of a good crossover, purchased or DIY is significant, and because I have a choice of amplifiers already, I will be buying a miniDSP. So, efficiency and SPL are not as challenging as they might be with a passive crossover in matching to the horn. My musical tastes are eclectic. I am on a serous Salsa jag at present, just having come off one of Indian classical music. Well, when not listening to garage punk or stadium rock. But my goal for this bass cab is to fully handle Poulenc's Organ Concerto in G. With 18" drivers this leaves little room for an additional subwoofer in the room. They will be crossed at 800Hz.
Drivers up to around $200 each are available from Eminence and Faital for instance. And I look forward to suggestions. Actually, I look forward to specifications or links to plans. I am a woodworker with a audio problem. There is nothing I can't build. These simulation programs, Hornresp, et. al., are beyond my ken.
Throw the 811b horns in the garbage, or send them for recycling. Imho. Horrid awful horns.
Go buy or build something useful down <500Hz. Definitely skip the diffraction horn type designs.
The old Altec (or similar) multicell horns are far superior - again imho.
Better still might be an JMLC or a variant of the Oblate Spheroid expansions... etc.
Too many possibilities to cover them.
The compression driver chosen WRT a given horn makes a huge difference in the results.
I'm unclear from ur post which bass bin you have? The Altec bass bins were not designed to go low at all. Dunno any that used 18" drivers, but maybe there were...
The entire purpose of the A7 line was to get reasonable output for PA work at a time when 60watt amps were "high power". (yes there were higher power amps, but these were hyper expensive and not used in many installations back in the day). Also these speakers were not designed to handle higher power anyway.
To use the A7 in the home, imo, you need to get "rid" of the boost provided by the horn loading of the enclosure - otherwise you will be perpetually bass shy, with the limited bass extension using the stock driver(s) and the stock port loading it's even worse.
There are a number of threads here on diyaudio that deal with these horns, enclosures and potential solutions. It would be a good idea to survey them. The old Exemplar project is perhaps ok for its time, but hardly up to SOTA these days.
IF you are going with 18" drivers and are trying to mate them with 800Hz horns, you have a wealth of problems to cope with. Most 18" drivers will not do well run up that high. I'd not want to run almost all of them above 300Hz. The opposite end of the problem is to get your horn to go down to the woofer, and match the polar response pattern near as the drivers transition (through the xover region).
Low bass does NOT depend on big diameter drivers.
Go buy or build something useful down <500Hz. Definitely skip the diffraction horn type designs.
The old Altec (or similar) multicell horns are far superior - again imho.
Better still might be an JMLC or a variant of the Oblate Spheroid expansions... etc.
Too many possibilities to cover them.
The compression driver chosen WRT a given horn makes a huge difference in the results.
I'm unclear from ur post which bass bin you have? The Altec bass bins were not designed to go low at all. Dunno any that used 18" drivers, but maybe there were...
The entire purpose of the A7 line was to get reasonable output for PA work at a time when 60watt amps were "high power". (yes there were higher power amps, but these were hyper expensive and not used in many installations back in the day). Also these speakers were not designed to handle higher power anyway.
To use the A7 in the home, imo, you need to get "rid" of the boost provided by the horn loading of the enclosure - otherwise you will be perpetually bass shy, with the limited bass extension using the stock driver(s) and the stock port loading it's even worse.
There are a number of threads here on diyaudio that deal with these horns, enclosures and potential solutions. It would be a good idea to survey them. The old Exemplar project is perhaps ok for its time, but hardly up to SOTA these days.
IF you are going with 18" drivers and are trying to mate them with 800Hz horns, you have a wealth of problems to cope with. Most 18" drivers will not do well run up that high. I'd not want to run almost all of them above 300Hz. The opposite end of the problem is to get your horn to go down to the woofer, and match the polar response pattern near as the drivers transition (through the xover region).
Low bass does NOT depend on big diameter drivers.
Last edited:
Naw. Don't toss the 811 horns, they can sound great if you use them right. I like them better than the 511. Just get your crossover and EQ right and you'll get a lot of good from them.
Yes, I really like to drive my 1961 Dodge Dart too...
...sorry Pano, could not disagree more.
Everyone has to like what they are hearing, so it's ok.
...sorry Pano, could not disagree more.
Everyone has to like what they are hearing, so it's ok.
But Bear, truly, how do you really feel?
I think one of the problems and the reason these requests sound so feeble is the trouble I have searching these archives. I have whined about this before. I must be impatient and think 3 hours is too long to find relevant posts. Most of what I find is serendipitous and I go down rabbit holes before either giving up the original search because I find something more germane or, like you have so diplomatically suggested, I ****-can that line of approach.
But over Sunday morning coffee I found lots of information on 2-way horn woofer projects for the 811B by discovering Valencia threads where people ten years ago were sick of Valencia posts. Several contributors are still active on diyAudio. So my post is likely "enough with the 811B already."
A month ago I knew I wanted to learn about horns and tried to find plans to build some out of wood. I know quite a bit about wood. Also, I have enjoyed over 40 years of "hifi" and build projects to listen to music I care about. Not finding plans and being unable to design the horns myself, I picked up some 811B's with 806-8A drivers inexpensively on Ebay. I have found that I can buy 2 new drivers with better spec's and recommendations than I can purchase 1 diaphragm to rebuild the 806-8A's. The drivers will return to Ebay.
I am just beginning to find sources for new horns and Stereo Lab Solutions out of Germany is a great site. What others would you recommend?
I know and understand that bigger is not always the way to go. I have some 6" CSS subwoofer drivers that can be jaw dropping in the right cab. I have had systems with up to 12" drivers in various duty as well. So, I could not agree more. I have always wanted to build with a 15" or 18" and the systems I have heard with large woofers have been great.
I want to build a bass cab that will not require any assistance from a sub. My SDX6's are helping out Fostex FE127e's at present in another room. And by going with 15" woofers crossing at 800hz there seem to be a number of candidates.
I will keep the 811B's because of their history and because it is a fun project. I have other legacy audio around because it still sounds great when I trot it out and it makes me smile. But I can see where the new tractrix horns are stealing the show. They will be next, and I will have the drivers already.
But I would like to build a current SOTA bass cab and welcome suggestions. I enjoy strong opinion. What is the bear using for his bottom these days?
I think one of the problems and the reason these requests sound so feeble is the trouble I have searching these archives. I have whined about this before. I must be impatient and think 3 hours is too long to find relevant posts. Most of what I find is serendipitous and I go down rabbit holes before either giving up the original search because I find something more germane or, like you have so diplomatically suggested, I ****-can that line of approach.
But over Sunday morning coffee I found lots of information on 2-way horn woofer projects for the 811B by discovering Valencia threads where people ten years ago were sick of Valencia posts. Several contributors are still active on diyAudio. So my post is likely "enough with the 811B already."
A month ago I knew I wanted to learn about horns and tried to find plans to build some out of wood. I know quite a bit about wood. Also, I have enjoyed over 40 years of "hifi" and build projects to listen to music I care about. Not finding plans and being unable to design the horns myself, I picked up some 811B's with 806-8A drivers inexpensively on Ebay. I have found that I can buy 2 new drivers with better spec's and recommendations than I can purchase 1 diaphragm to rebuild the 806-8A's. The drivers will return to Ebay.
I am just beginning to find sources for new horns and Stereo Lab Solutions out of Germany is a great site. What others would you recommend?
I know and understand that bigger is not always the way to go. I have some 6" CSS subwoofer drivers that can be jaw dropping in the right cab. I have had systems with up to 12" drivers in various duty as well. So, I could not agree more. I have always wanted to build with a 15" or 18" and the systems I have heard with large woofers have been great.
I want to build a bass cab that will not require any assistance from a sub. My SDX6's are helping out Fostex FE127e's at present in another room. And by going with 15" woofers crossing at 800hz there seem to be a number of candidates.
I will keep the 811B's because of their history and because it is a fun project. I have other legacy audio around because it still sounds great when I trot it out and it makes me smile. But I can see where the new tractrix horns are stealing the show. They will be next, and I will have the drivers already.
But I would like to build a current SOTA bass cab and welcome suggestions. I enjoy strong opinion. What is the bear using for his bottom these days?
This link might help:
Altec 9844-8B - Page 16
Seems it's worth the trouble to try some damping materials on the horn...
Altec 9844-8B - Page 16
Seems it's worth the trouble to try some damping materials on the horn...
Ok, now I get it. The city so nice they named it twice! NYer's speak from the heart. I did my internship at Nassau County Medical Center. But a year of NYC was enough for me.
I truly enjoyed your website. Blue Oyster Cult! They were fun.
What are you packing in those Stratos?
I truly enjoyed your website. Blue Oyster Cult! They were fun.
What are you packing in those Stratos?
Well there are much better horns than the 811 and I've owned a few. 🙂 But if you do the crossover right including EQ they sound pretty darn good. You will need to do some vibration control.
If you are using digital EQ and crossover it's not hard to get them right. And here's the thing, once you do get them right you will have learned a lot about horns that will help you later.
If you are using digital EQ and crossover it's not hard to get them right. And here's the thing, once you do get them right you will have learned a lot about horns that will help you later.
brucegseidner, thanks, but that's all ancient history now. Not bad things, but only perhaps good for those times. The times have changed and the technology has marched on.
Not sure why you have trouble finding relevant threads, many on the A-7 and many on horns. TONS on horns. Many great diy projects out there. You being a carpenter, you ought to like some of them.
You might read up on the "Tapped Horn". Something to make out of wood.
There is a DIY multicell out of wood too...
Horns from paper.
Horns from fiberglass, wood, spun, metal, almost everything possible.
The Stratos were Focal drivers.
Consider IB, Infinite Baffle for your bass - assuming you own the house, and it is not connected to another. Essentially that is the ultimate on several levels.
IF you put ur speakers on the long end of your room, horns are an easy fit - the dispersion is perfect. No need for multicells, or 811 diffraction horns. Just toe them in, aim at the opposite corners, other side of the room, pretty much.
Look up Martin Seddon's work - he's in Oz, but good info there.
Follow the JMLC thread too... massively good info and ideas.
BOC was a great show in their time. Back when dinosaurs still roamed the planet. 😀
If I had two 811s I'd be happy to give them away - but with disclaimers and warnings, of course! 😀
_-_-
Not sure why you have trouble finding relevant threads, many on the A-7 and many on horns. TONS on horns. Many great diy projects out there. You being a carpenter, you ought to like some of them.
You might read up on the "Tapped Horn". Something to make out of wood.
There is a DIY multicell out of wood too...
Horns from paper.
Horns from fiberglass, wood, spun, metal, almost everything possible.
The Stratos were Focal drivers.
Consider IB, Infinite Baffle for your bass - assuming you own the house, and it is not connected to another. Essentially that is the ultimate on several levels.
IF you put ur speakers on the long end of your room, horns are an easy fit - the dispersion is perfect. No need for multicells, or 811 diffraction horns. Just toe them in, aim at the opposite corners, other side of the room, pretty much.
Look up Martin Seddon's work - he's in Oz, but good info there.
Follow the JMLC thread too... massively good info and ideas.
BOC was a great show in their time. Back when dinosaurs still roamed the planet. 😀
If I had two 811s I'd be happy to give them away - but with disclaimers and warnings, of course! 😀
_-_-
Audiophile Speakers Made in USA - No MDF
A good example of 811s in action. I helped a bit with the crossover. Very nice sounding speaker.
A good example of 811s in action. I helped a bit with the crossover. Very nice sounding speaker.
Yes, that is a non-starter and the most successful remedy for me is to construct a fitted wood case that I can fill with sand. It will also take care of resting the horn on a flat cab below.
I follow your Twin Towers and the miracles of electronic cross-overs and room equalization.
What is your favorite 15" or 18" driver/bass cab when not playing with arrays?
I plan to cross at 800Hz using a minDSP. There are lots of woofers that are 30-2000Hz. I am limited on the modeling side of this. Because I have built full range speakers modeled with the MJK I know they work. Thank you Planet 10!
I have looked and can not find a MLTL modeled with MJK tables for a 15" driver.
It is likely smaller than an Onken or a BR. I would love to build a single mouth BVR style cabinet instead of a BR with a tube port.
I had not seen this in my Google peregrinations today. Thanx, this is the concept for the project and why I have been trying to understand the Altec line up. Those puppies were purpose built. I am trying to figure out what they were about and am getting to the point of firing up the table saw and router tables.
I was looking at the Eminence PSD:2002 driver and one from B&C used with some success in both DIY and commercial products. I am not a bad tug-nut but a when a couple of these cost about the same as one diaphragm for the 806-8A's...
And the Eminence Kappalite 3015LF was on the short list of woofers.
I am now on the hunt and will see what cabs have been modeled for this driver.
Last edited:
If you are serious about TL cabs then member GM is your go to guy. He knows them better than most of us. Greg will help on a serious project. Just remember that a lot of guys ask for help but few actually build.
bruce, I think that you're not quite "getting" what I am saying about using large diameter drivers crossed over to a given horn?
Sure many drivers "go" up to 2kHz. But, not really. They are extremely non-flat in that behavior, have excess IM and THD, and most importantly exhibit poor polar response that does not match the horn.
In addition, they have the added issue of having a completely different sort of spectra of distortion compared to the horn.
One reason this is always of concern to me, and why many people prefer "full range drivers", ESLs and other sorts of systems where the majority of the sonic spectrum is reproduced by a single driver/horn/thing is that the spectra remains consistent to the ear across the audible range.
The commonly accepted theory is that the sum of the HF and the LF drivers "sums" and so the sound is consistent. I tend to disagree with this theorem. One can see intuitively that as a given instrument shifts up the scale, through the xover point that the % of harmonics reproduced below the xover changes in proportion to rising frequency, finally, there is nil from the driver below the xover. The key to this is the harmonics generated by the speaker, not the harmonics of a given instrument/voice/etc.
The short version of this is the not quite perfect analogy of a pianist playing a full grand piano with the left hand, and a short upright spinet with the right...
This is one of the big considerations and trade-offs in speaker design. Or, why I really, really do not like most situations with a crossover anywhere in the 500-2kHz range IF it can be avoided.
Sure many drivers "go" up to 2kHz. But, not really. They are extremely non-flat in that behavior, have excess IM and THD, and most importantly exhibit poor polar response that does not match the horn.
In addition, they have the added issue of having a completely different sort of spectra of distortion compared to the horn.
One reason this is always of concern to me, and why many people prefer "full range drivers", ESLs and other sorts of systems where the majority of the sonic spectrum is reproduced by a single driver/horn/thing is that the spectra remains consistent to the ear across the audible range.
The commonly accepted theory is that the sum of the HF and the LF drivers "sums" and so the sound is consistent. I tend to disagree with this theorem. One can see intuitively that as a given instrument shifts up the scale, through the xover point that the % of harmonics reproduced below the xover changes in proportion to rising frequency, finally, there is nil from the driver below the xover. The key to this is the harmonics generated by the speaker, not the harmonics of a given instrument/voice/etc.
The short version of this is the not quite perfect analogy of a pianist playing a full grand piano with the left hand, and a short upright spinet with the right...
This is one of the big considerations and trade-offs in speaker design. Or, why I really, really do not like most situations with a crossover anywhere in the 500-2kHz range IF it can be avoided.
Last edited:
I am sorry I was not more clear. That is exactly the reason I am obsessing a bit over this. After the plan is chosen, it takes as much time and money to build a crap system as it does a stellar system.
I have built a number of multi-way cone systems. The only ones that have been successful had been carefully designed by people who both knew what they were doing and cared about what they were doing.
I am at my computer now enjoying 20+ year old relics, a near field Emminent Technology LFT-11 planar system driven with a Golden Tube Audio SI-50 and Paradisea DAC. It is a long way from the KLH Model 19 I used to tote around in my VW van in HS and college. But hopefully you are grinning and understand.
These systems are incremental stews and more than the sum of the parts. Even the room is part of the stew. We all know that. Over the past ten years I have been playing with the full rangers because they are so sweet, and because there are generous bright folks who think this stuff through for golden eared carpenters like me. I built a lot of bad multi-way systems back in the day using calculators and formulas. The parts did not go well together.
I have a big Malcom Jones KEF DIY 105 system with B139's I built in 1984 that is still rocking. But I have been around big Klipsch and Altec systems over the years that created some deep awe at a few watts. So, I have the room to build one of those, and being a carpenter need some advise from the architects.
Because I know from experience that there is incredible refinement in the choices of integrating drivers I thought I would start with the all important midrange, in this case a horn, and need help figuring out what is going to integrate with the horn. I have a full woodshop that I am unpacking after a relocation and this will be an inaugural build. I want to make a bass cab that will blend with a compression driven horn, crossed at about 800Hz, and that will competently handle big orchestra and organ music. My full range, woofer assisted systems do everything else with aplomb. I want a seat at Carnegie Hall without leaving home.
I have built a number of multi-way cone systems. The only ones that have been successful had been carefully designed by people who both knew what they were doing and cared about what they were doing.
I am at my computer now enjoying 20+ year old relics, a near field Emminent Technology LFT-11 planar system driven with a Golden Tube Audio SI-50 and Paradisea DAC. It is a long way from the KLH Model 19 I used to tote around in my VW van in HS and college. But hopefully you are grinning and understand.
These systems are incremental stews and more than the sum of the parts. Even the room is part of the stew. We all know that. Over the past ten years I have been playing with the full rangers because they are so sweet, and because there are generous bright folks who think this stuff through for golden eared carpenters like me. I built a lot of bad multi-way systems back in the day using calculators and formulas. The parts did not go well together.
I have a big Malcom Jones KEF DIY 105 system with B139's I built in 1984 that is still rocking. But I have been around big Klipsch and Altec systems over the years that created some deep awe at a few watts. So, I have the room to build one of those, and being a carpenter need some advise from the architects.
Because I know from experience that there is incredible refinement in the choices of integrating drivers I thought I would start with the all important midrange, in this case a horn, and need help figuring out what is going to integrate with the horn. I have a full woodshop that I am unpacking after a relocation and this will be an inaugural build. I want to make a bass cab that will blend with a compression driven horn, crossed at about 800Hz, and that will competently handle big orchestra and organ music. My full range, woofer assisted systems do everything else with aplomb. I want a seat at Carnegie Hall without leaving home.
In that case, one of the few I've heard that really does that is the Onken W cabinet. It is not small, it is not light, it is not cheap. But it plays a big, pure bass like no other speaker I've heard - including many that are bigger and more expensive.
2x15", double wall 1" ply with sand in between. Not an easy build.
2x15", double wall 1" ply with sand in between. Not an easy build.
I concur with Pano. Dual 15" woofers are the classic studio-monitor layout. Not small, not cheap, and not a subwoofer, either.
As for old-school Altec 511/811 sectoral horns vs modern JMLC or Oblate Spheroid waveguides, not gonna go there. They are completely different in presentation and "style". Modern horn/waveguides don't sound like the mid-Fifties "Golden Age" sound at all, more like super-big electrostats with unlimited dynamic range.
In some ways, it's like the Lowther/Fostex/Zu whizzer-cone presentation; some people swear by them, others swear at them. It's pretty much an either/or thing. You either like the 511/811 sound (equalized or not) or you don't.
Speaking only for myself, I detested the A7's until I heard the A5's, the bigger brother that uses the 1505 multicell with the 288 large-format driver. That changed my opinion about horns.
As for old-school Altec 511/811 sectoral horns vs modern JMLC or Oblate Spheroid waveguides, not gonna go there. They are completely different in presentation and "style". Modern horn/waveguides don't sound like the mid-Fifties "Golden Age" sound at all, more like super-big electrostats with unlimited dynamic range.
In some ways, it's like the Lowther/Fostex/Zu whizzer-cone presentation; some people swear by them, others swear at them. It's pretty much an either/or thing. You either like the 511/811 sound (equalized or not) or you don't.
Speaking only for myself, I detested the A7's until I heard the A5's, the bigger brother that uses the 1505 multicell with the 288 large-format driver. That changed my opinion about horns.
Last edited:
- Status
- Not open for further replies.