Hi, a friend of mine has recently purchased the above speakers, that were made by someone.
They have the modded fostex drivers in.
Couple issues.
1. Hardly any bass
2. They don't seem that loud (tested and quieter than some standard 91db speakers)
Are there some simple obvious issues to address this problem.
Thanks in advance.
They have the modded fostex drivers in.
Couple issues.
1. Hardly any bass
2. They don't seem that loud (tested and quieter than some standard 91db speakers)
Are there some simple obvious issues to address this problem.
Thanks in advance.
Looks like no bass is a design feature.
http://www.audioreview.com/product/speakers/floorstanding-speakers/decware/hdt.html
http://www.audioreview.com/product/speakers/floorstanding-speakers/decware/hdt.html
I have had a set of Steve’s FE206. Not impressed.
no bass is expected. FE206, even with the extra surround) needs a horn to do bass,
dave
no bass is expected. FE206, even with the extra surround) needs a horn to do bass,
dave
Funny, the reviews say it has no bass, and the highs drop off very quickly... and still get a 5-star rating for their midrange only? Cute...Looks like no bass is a design feature.
http://www.audioreview.com/product/speakers/floorstanding-speakers/decware/hdt.html
Some folks are apparently more easily 'amused' than others. 😉
Hmm. I'd forgotten the HDT was offered as a planset.
To be honest, I never could understand the logic behind that design. If you're going to do a QW, bleeding off pressure at the throat via a couple of PBRs seems a bit odd, especially if you're mass-loading it at the other end, which you're then going to use to load another QW that will have some kind of mass-load itself provided by the dispersion plate. The old 206 was a low Q driver even when measured with a low drive voltage, so as Dave says, without correction or help from the amplifier it really needed a horn to produce much in the way of balanced LF output. There isn't a proper FR plot provided on the DIY page, but I see that even on the current production model page, with them having shifted to the higher Q Lii Song unit, the LF response is following a damped trend < 100Hz so unless it's pushed back against a wall it's not likely to have prodigious LF output unless I've missed something obvious (not unknown).
I do see it's said several times that it is used 'to voice Decware's amplifiers'. I don't know what their output impedance is, but as SET types, it's probably quite high, so that's likely to be mandatory to help prop up what LF is there. You could try inserting a variable resistor in series with the driver and see if that helps adjust the balance a bit -accepting of course that it will come at the price of reduced sensitivity.
To be honest, I never could understand the logic behind that design. If you're going to do a QW, bleeding off pressure at the throat via a couple of PBRs seems a bit odd, especially if you're mass-loading it at the other end, which you're then going to use to load another QW that will have some kind of mass-load itself provided by the dispersion plate. The old 206 was a low Q driver even when measured with a low drive voltage, so as Dave says, without correction or help from the amplifier it really needed a horn to produce much in the way of balanced LF output. There isn't a proper FR plot provided on the DIY page, but I see that even on the current production model page, with them having shifted to the higher Q Lii Song unit, the LF response is following a damped trend < 100Hz so unless it's pushed back against a wall it's not likely to have prodigious LF output unless I've missed something obvious (not unknown).
I do see it's said several times that it is used 'to voice Decware's amplifiers'. I don't know what their output impedance is, but as SET types, it's probably quite high, so that's likely to be mandatory to help prop up what LF is there. You could try inserting a variable resistor in series with the driver and see if that helps adjust the balance a bit -accepting of course that it will come at the price of reduced sensitivity.
I don't know what their output impedance is
1-3Ω i’d guess depending on model.
dave
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