Pete B Posted November 29, 2022 Report Share Posted November 29, 2022 I read Don Keele's review of the T1030 when in was published in Audio in 1991 starting on page 81 in the .pdf here: Audio-1991-01.pdf (worldradiohistory.com) Took another look at this test report and the T1030 looks to be 6 dB down at 40 Hz which is a bit much, boosted high pass EQ would make sense to bring it up by 3-6 dB to get a flatter response. Figure 8 in the test report shows that the system resonance (Fc) is at about 40 Hz and that the impedance dips to 3.4 ohms around 100Hz indicating that the bass section is 4 ohms even though the system is rated as 8 ohms. I liked this design, very nice work and always wondered what the crossover design looked like. Bought a pair of crossovers on ebay, measured the inductors and here is the schematic: Quote Link to comment Share on other sites More sharing options...
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