Control 5 – Upgrading the Crossover (Part 6)
a moment of inspiration I thought long and hard about improving the sound of this Control 5. I was very tempted to discard the original woofer and tweeter and replace… Read more >
Control 5 – Sound Quality (Part 5)
Control 5 Frequency Response I don’t know whether the designers of the Control 5 tried to follow the Harman Target Curve but it does appear so. The problem with it… Read more >
Control 5 – Step & Waterfall Measurements (Part 4)
The transient of the woofer in the Control 5 suggest it’s not very responsive. Bear in mind that there’s only a 0.6mH inductor in the woofer crossover and it takes… Read more >
Control 5 – the elusive Frequency Response (Part 3)
JBL Control 5 Woofer & Tweeter Frequency Response The Blue plot above is the Control 5 woofer with the passive Low Pass network. The Red plot is of the tweeter… Read more >
Control 5 – Woofer and Tweeter Measurements (Part 2)
Control 5 Woofer Frequency Response The plot above is the RAW response of the Control 5 woofer. This was taken with the woofer directly connected to the power amplifier. Frequencies… Read more >
JBL Control 5 – Thiele & Small Parameters (Part 1)
JBL Control 5 I bought a pair of these JBL Control 5 between 1989-1990. At that time, I was producing audio-visual shows and I needed a pair of speakers for… Read more >
E7 error – Intel DQ35JO motherboard
Intel DQ35JO This is one of those infuriating motherboards. When I booted it up, all I got was a black screen with a cryptic E7. Apparently, E7 stands for Error… Read more >
eMachines W3107 Upgrade
eMachines W3107 I bought the W3107 from Walmart in 2005. It came with a slow 1.8GHz AMD Sempron 3100+. For those who are not familiar with computers, the Sempron is… Read more >
ECS L7VMM3 embedded AMD XP 1800+
ECS L7VMM3 This motherboard by the Elitegroup Computer Systems (ECS) is even farther back. It uses an early AMD Athon XP 1800+, a 1.50GHz processor that was released in about… Read more >
IDOT ID-PCM7G embedded VIA C7-D processor
I bought this motherboard out of curiosity. I’m sure it has been with me for more than a decade. I never really used it because it was too slow. Since… Read more >