Creation of my new beautiful "diy" speaker - Bastanis Atlas
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回覆 (89): Bastanis Mandala baffle
Here, I want to thank Andy, the dealer of Bastanis in Hong Kong, for his unparalleled patience and super friendly service to get me out of this ordeal. He keep giving me advice on power line treatment, lending me gadgets/cables/amps to try, sending me websites on room acoustics and even help me to assemble the kits in the final stage, i.e. the soldering work on which I am absolutely hopeless. One night he stayed in my room stil midnight, just before the CNY holiday. Amazing follow up work.
In an effort to find out the potential of the Bastanis, he also invited me to his home to listen to his own Bastanis set up the suond of which I like very much, better than what I have been facing with in my den.
Three big cheers to Andy.
回覆 (88): Bastanis Mandala baffle
Just an quick update after so long.
Have been silent because I have been experiencing one of the longest and most painful speaker burn in process I have ever had. Most speakers I have used in the past decade have been vintage drivers and they sound good the moment you put them in action. The Bastanis does not, and take long time to burn in. There are many reasons as i gathered from those who have used them for long time and who swear these would be their last speakers: 1) The 12" widbanders are specially made to Bastanis spec by Eminence (WLM and Zu also use them) and they are to withstand high power as well as high sensitivity. They are a bit like those TAD woofers which has hard surround and takes many hundred hours (or longer) to really mature. Before this is reached, you are really hearing 10% of what they can do, i have been thru this and I know.
2) the cone has been treated by the designer/maker with some sort of a violin lacquer (aka C37 oil etc) and has been baked to destress the cone's fibre. This is to make the 12" cone more flexible at higher frequency (up to 9-10khz) and to cure the notorious beaming typical of large cone trying to play that high. It takes many hundred of hours (could be more) of burning in to complete this destressing process. Sounds like another snake oil? Well, i was skeptical about this at first, but now I can tell from my experience this is real.
3) The Bastanis is very revealing, so much so that if your amp and anxillary gears are not functioning properly, it tells you in a crude way. It takes a while for you to fine tune your existing gear, the plugs on your power sockets, power line treatment, silver plated copper cables vs pure copper, positioning, first reflection point absorption et etc. Basically I have to rearrange my room's setting around the speaker.
The above has taken me 3 months, mainly the burn-in process itself makes and breaks.
From last night onwards, I have the most satisfying sound I have ever achieved in my room (not saying that they are the best sound I have heard, just the best I could get in my little world). The week before I burned them in for another 100 hours by continuosly playing really loud some double bass cello recordings with strong and impactful string plucking which gave the wideband cones a very good workout from top to bottom (i find these better than using those xlo burning in tracks that use pinknoise pulses). So far, they have been in their 400 hours and a bit more, and are starting to amaze me.
This is really not a plug-n-play loudspeaker. But the work and time you put in will pay you off!!! I now know that the dealer in HK can also accept order to make the baffles quickly in finland plywood. I wish this were available back then when i bought the kits.
回覆 (87): Bastanis Mandala baffle
I am giving out my 3-seater sofa for FREE as new sofa arrived today. Please check the second hand column for details.
You must arrange your transportation to pick up from my studio in Kwai Hing.
回覆 (86): Bastanis Mandala baffle
At the same time, I am planning to set up my movie screen/projector so I sold my old solid wood hifi rack and now place all my hifi gears low on the ground, with each of them sitting on a special "ikea" table. These are new from Ikea and each is selling for HK$270. They look much more exotic than the usual "hifi purpose" rack.
回覆 (85): Bastanis Mandala baffle
The grille system resembles that of sonus faber/Fraco Serblin. Fixed on the back of the baffle by screws and can be taken off. Coated with "dark" Watco Danish Oil to deliberately create at contrast to the main baffle body coated with "natrual" danish oil.
回覆 (84): Bastanis Mandala baffle
this 3 seater Giomani sofa is for sale - $800. Must go this week.
回覆 (83): Bastanis Mandala baffle
回覆 (82): Bastanis Mandala baffle
This is the "tidist" status of my den in the last 2 years since my occupancy. Now it is a bit too tidy and the reflective tiles on the floor starts to come to the scene. Looking for a big carpet for that.
回覆 (81): Bastanis Mandala baffle
回覆 (80): Bastanis Mandala baffle
回覆 (79): Bastanis Mandala baffle
some updated pictures of my Bastanis Atlas open baffle. Partially oiled with Danish oil. More area to oil but for now just want to play with room placement, and listen to music!!
回覆 (78): Bastanis Mandala baffle
回覆 (77): Bastanis Mandala baffle
the back of the dipole tweeter. It is a modified 1" throat compression driver with the diaphram coated with violin lacquer and c37, etc.
回覆 (76): Bastanis Mandala baffle
Found an old review of the lower model Prometheus MK2. My atlas is the higher model with one 12" widebander extra, and have the dipole 18" woofer instead of a sealed woofer bin.
My pair has been into its 200 hours of run in using xlo burn in and pinknoise. Will get some serious listening by Sunday.
回覆 (75): Bastanis Mandala baffle
回覆 (74): Bastanis Mandala baffle
Wow ! The long awaited production finally stand up for the show !
Very nice !!
回覆 (73): Bastanis Mandala baffle
the baffle on the back is the old one, now serving at a new open baffle owner's home.
My room is still in a state of mess, needs some time to tidy up.
回覆 (72): Bastanis Mandala baffle
回覆 (71): Bastanis Mandala baffle
回覆 (70): Bastanis Mandala baffle
回覆 (69): Bastanis Mandala baffle
回覆 (68): Bastanis Mandala baffle
someone came yesterday morning to pick up my old diy open baffle and the 18" woofer and he had a chance to listen to the new Bastanis opne baffle while waiting for his van to arrive. He was very pleased and took some pictures of the Bastanis and the 0.7w 71a amp.
回覆 (67): Further notes on Watco.....
Congratulations! May be we can have a listen sometime soon!
回覆 (66): Further notes on Watco.....
With the help from the Bastanis' HK agent, Andy, my special "baroque" edition of Bastanis Mandala open baffle speaker finally "open sound" tonight.
Will get some photo up tomorrow.
回覆 (65): Further notes on Watco.....
I tried some Watco "dark walnut" on a piece of spare wood, and it looks quite exotic
回覆 (64): Further notes on Watco.....
apologise for poor images taken with my Nokia...again.
These are the front grille structure waiting for drying, after two coats of Watco oil
回覆 (63): Further notes on Watco.....
i did not do the carpentry, too much a challenge for me. Even just the oiling exercise proves to be more demanding than my tango dancing.
回覆 (62): Further notes on Watco.....
I want to learn the carpentry.
回覆 (61): Further notes on Watco.....
I want a seat when it is ready....
回覆 (60): Further notes on Watco.....
will do photo later, was extremely tired by the time i finished the last brush stroke.
btw, does the famous "old english oil" play a role in any wood making, in combination with danish oil?
回覆 (59): Further notes on Watco.....
回覆 (58): Further notes on Watco.....
My back really hurts now...
I spent a great day yesterday (from afternoon to late night) sanding, oiling, waiting for drying and oiling again and eventually mounting the drivers on the baffle for my Bastanis kit.
Will "open sound" very soon, just waiting for a couple of parts missing in the carton.
Thanks Kris and Vash for the tip on Danish Oil. They are easy to use. Upon choosing whether using cloth or brush to apply the oil on, I did a test on a piece of spare sample and using acrylic brush allow a wetter coverage of oil on the surface and allowing it to "seep" through the wood's grain ( you can actually see bubbles on the surface as the oil is making is way into the wood, cool!!). This gives a more orangy tone than using cloth. But the can of danish oil finishes quicker. I coated two layers from head to toe. I use Natural color. Perhaps one day I will add a coat of "dark walnut" some certain parts to impart a contrast. so far so good, feel some accomplishment.
回覆 (57): Further notes on Watco.....
Merry Christmas to all of you.
回覆 (56): Further notes on Watco.....
A satin lacquer or varnish will achieve this. Camel make one.
回覆 (55): Further notes on Watco.....
How about this?
Yes, i have some spare plywood pieces for experiment
回覆 (54): Further notes on Watco.....
Can you give some advice if I want to make my birch into a slightly orange natural hue like on this Klipsch La scala? Is it just a plain layer of lacquer?
The "orange hue" may well be just the lighting, the Klipsch in photo looks like just a varnish-on-ply job (vanish is not a good sealer, with moisture penetrating the ply usually turns yellow ). If my memory serves, there're plenty of color stain available in Ikea (water base I think?) and you can put any "hue" you want on the wood surface. Frankly, I'm more concern about the consistency (or inconsistency) of the ply in terms of the actual stain application, keep it simple is always best. In your photos, the chipping on the CNC work may need proper attention. One of the options is to do an infill (level and sand) on the whole design patten with something along the line of epoxy. Food for thoughts.
ps: don't forget to put aside plenty of scrap wood for testing :o
回覆 (53): Further notes on Watco.....
I have to brush off all the saw dust every now and then to get a good look on the result
回覆 (52): Further notes on Watco.....
i guess these plywood (or any plywood on earth) is not the right candidate for using CNC to do this kind of engraving. Perhaps solid wood would be better, less chipping I think
回覆 (51): Further notes on Watco.....
close up before my touching up. I hate this
回覆 (50): Further notes on Watco.....
this shot is to show the two side detachable panels engraved with baroque motif. I spent 5 hours tonight touching up all the details all over again. The thing is when these project finally arrived a week ago, I found out that the CNC engraved pattern were not as refined as I hope. One can see a lot of wood splints and whiskets flying off here and there, and it is far from being smooth enough. I took some jewellery making tools etc to my den tonight and get rid of all the whiskets, and sand the 4 boards off to as smooth as I can accomplish. I am very tired now.