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 >
Selenium ST200 Super Tweeter Review
Selenium ST200 Super Tweeter The ST200 is a $20 budget super tweeter by Selenium. As in all Selenium products, it’s intended for the pro sound market. According to their specs,… Read more >
January 18, 2019 Drivers Evaluation, PRO DRIVERS Read more >
JBL 127H1 10″ Woofer Thiele/Small
Thiele & Small Parameters (before Break-in) Ported Box=65 liters • Fb=35Hz (Manufacturer’s T/S) JBL4410 BOX (65L) Ported Box=65 liters • Fb=30Hz (DATS T/S) Ported Box=100 liters • Fb=25Hz (Manufacturer’s T/S)… Read more >
JBL GT1041 10″ Double Magnet Subwoofer Thiele/Small
Thiele & Small Parameters Thiele & Small Parameters (before Break-in) Ported Box=35 liters • Fb=30Hz (Manufacturer’s T/S) Ported Box=35 liters • Fb=30Hz (DATS x0.75) Ported Box=35 liters • Fb=30Hz (DATS… Read more >
Blackbird-TA (JBL 2342 Bi-Radial Horn with HiVi M8a)
Blackbird-TA The Blackbird-TA is based on the high frequency section of the iconic JBL 4425 Studio Monitors. The JBL 4425 was designed to provide even dispersion in the horizontal and… Read more >
Robin-HT5 (JBL HT5 with HiVi M5a)
Robin-HT5 The Robin-HT5 is based on HiVi M5a midwoofer. Initially, I was concerned that such a small 9 liters box will boost the midbass too much, making it into a… Read more >