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It is currently 03 Aug 2020, 12:37

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PostPosted: 27 Jan 2020, 18:46 
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Joined: 13 Jan 2018, 21:33
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Location: australia
Have been running a few different albums, lighter style and some heavier from Harry James, Earthworks, Amy Winehouse, Christina Aguilera, Led Zeppelin, Peter Gabriel. Greg Lakes bass is coming through strong. Sound is changing the more time passes, or is it my ears/brain. Compared to the commercial 2-ways it’s definitely lighter in bass as simulated. The deep bass and drum notes are still there just lighter. At 40hz the cones are moving noticeably and producing a just audible note. in this room i’m sitting about 1 meter closer to the speakers. voices, piano, violin and cymbals and xylophone are very articulate.

This amp plays the speakers at about the 10 o’clock position comfortably compared to the 3 o’clock on the 2-ways. time soon to put together the 12au7/6as7 amp i have most of the parts for which might be a good alternative amp for these speakers. any thoughts?

may reduce some filling in the first chamber for a test in a few weeks after more time playing. I read of one guy in a vented box design preferring the sound with no fill which would seem against conventional wisdom.


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PostPosted: 07 Apr 2020, 16:34 
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Location: australia
I’ve been listening to these small TLs for a couple of months now, pulled the side off and readjusted the filling a few times. I decided to remove the filling from the last chamber altogether. Too late now as the boxes are permanently glued together ready for sanding and painting. If I were doing this again I would be inclined to break the speakers in first on a open baffle for a week or two as the sound does seem to change and adjusting the fill during this time is not practical.

Over time the midrange has become more refined and bass a bit more prominent and less honky or have my ears accepted its faults, hard to tell. On one Brian Jonestown Massacre recording, Joel is tapping these sticks together which comes out as a ringing sound I haven’t noticed on my other speakers. Thought originally i may have to supplement the bass with a powered subwoofer i have as the bass was quite lighter than normally use to. Although I do have my other two ways to alternate between, I am finding the fullrange with the 300b preferable to listen to overall.

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PostPosted: 08 Apr 2020, 22:57 
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Joined: 23 Feb 2017, 02:02
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Speakers do burn in so they will sound better over time so its unlikley the ears.

Looking good


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PostPosted: 09 Apr 2020, 01:07 
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Location: australia
Thanks Koichi. Have a happy Easter as well as you can under the circumstances.

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PostPosted: 09 Apr 2020, 23:27 
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Thanks


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PostPosted: 01 Aug 2020, 20:37 
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Joined: 13 Jan 2018, 21:33
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Location: australia
8 months after playing music finally got to undercoat it. That’s after a week of nights puttying holes and sanding. Still to paint the bases when dry. Final black full gloss top coat to come next week. I wanted to see how this small speaker would go in a small room. And it’s not too bad but the size compromise means lowest bass frequencies are down on volume. They’re there though.

For this driver MJK kindly advised to make a TL of 880mm for a 1/10 taper and 32 L volume. I have some left over MDF to make a mule and I have in my mind to resurrect a Bailey/Radford design from the 70s one of my friends built with the b139. Appropriately scaled for the ps180 driver in a 32l box. There’s probably easier tallish enclosure designs but I am still drawn to a compact enclosure with 2 folds.


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