Tweet
For you beer connoisseurs out there you might see the irony in the name. These hadn't even been measured for design work until about 10 this morning. This is a little something I threw together in less than an hour (not including the build, add maybe another 2 hours for that). I basically aimed for a flat response, decent phase and a safe impedance and ran with it. I did virtually no listening or tweaking prior to them being finished. These are intended for desktop use and adding a sub will yield a really nice sounding setup that doesn't take up any real estate. I did verify everything was wired properly with regard to crossovers and polarity before I buttoned them up, but I just wanted to see how fast I could knock out a small build.
DSA90-8, ND20FB-4 drivers and used our 0.04 cube knock downs, sealed. I chamfered the back of the woofer hole, otherwise they are very basic in construction. They are good to around 80 but a high pass at 100-120 is going to give you the most output capability. I am using them with a small sub crossed at 100 and they will reach 100 dB from a near field location (24-30"-ish) without much of a problem. Five of them would make a pretty killer HT setup. My best guess is about 4-5 pounds each.
Nothing special about the crossover design. I was a bit worried about the 2k crossover point but they don't have any issues at all. The raw tweeter response played to 1k and hit a wall, and with the rising response due to the semi horn loading I doubt there will be thermal issues with this crossover point. They were also padded quite a bit. I did use a Zobel due to the high inductance on these small woofers. The impedance is a solid 8 ohms so these can be driven with any modern amp. Sensitivity is not surprisingly low around 80 dB but they have plenty of output with our KAB250 board.
Listening impressions? Well I'm still in the process of that but so far they don't do anything wrong. The sound stage is crazy wide which is to be expected. They image very well and sound a lot bigger than they are especially with a sub. They are very well balanced overall. They do sound best when 8-10" off the desk (counter in my case) which puts them closer to ear level. Aiming them up would also work relatively well.
DSA90-8, ND20FB-4 drivers and used our 0.04 cube knock downs, sealed. I chamfered the back of the woofer hole, otherwise they are very basic in construction. They are good to around 80 but a high pass at 100-120 is going to give you the most output capability. I am using them with a small sub crossed at 100 and they will reach 100 dB from a near field location (24-30"-ish) without much of a problem. Five of them would make a pretty killer HT setup. My best guess is about 4-5 pounds each.
Nothing special about the crossover design. I was a bit worried about the 2k crossover point but they don't have any issues at all. The raw tweeter response played to 1k and hit a wall, and with the rising response due to the semi horn loading I doubt there will be thermal issues with this crossover point. They were also padded quite a bit. I did use a Zobel due to the high inductance on these small woofers. The impedance is a solid 8 ohms so these can be driven with any modern amp. Sensitivity is not surprisingly low around 80 dB but they have plenty of output with our KAB250 board.
Listening impressions? Well I'm still in the process of that but so far they don't do anything wrong. The sound stage is crazy wide which is to be expected. They image very well and sound a lot bigger than they are especially with a sub. They are very well balanced overall. They do sound best when 8-10" off the desk (counter in my case) which puts them closer to ear level. Aiming them up would also work relatively well.
Comment