imp undamped
hello,
my carpenter take a few undamped measurements,
next month he will take new measurements.
1 the sum imp will smooth the peaks ~170 Hz+220 Hz with damping.
2 fronthorn
3 rearhorn
front driver: http://www.aos-lautsprecher.de/pdf/chassis/DB10WB0824.pdf
rear driver: invers changed + -
http://www.scan-speak.dk/datasheet/pdf/10f-8414g10.pdf
hello,
my carpenter take a few undamped measurements,
next month he will take new measurements.
1 the sum imp will smooth the peaks ~170 Hz+220 Hz with damping.
2 fronthorn
3 rearhorn
front driver: http://www.aos-lautsprecher.de/pdf/chassis/DB10WB0824.pdf
rear driver: invers changed + -
http://www.scan-speak.dk/datasheet/pdf/10f-8414g10.pdf
Attachments
Last edited:
What driver are you using - appears to be two 4 ohm drivers in series and configured as bipole omni? No frequency response measurements? Otherwise how do you know it is 35 Hz and 90dB?
how?
two 8 Ohm parallel it is a bipol, in serie it is a dipol and does not work so well,
you can see a few other graphs on the link, but because it is undamped
it it not compairable, look there.
experience and i compair with RDH20 and Bassel with Flute, by test cd´s
the rear driver could be a cheap one, EBP > 120
The mini Posaune is the smallest of five constructions look my HP
Kornett, Posaune
posaune
kornett
two 8 Ohm parallel it is a bipol, in serie it is a dipol and does not work so well,
you can see a few other graphs on the link, but because it is undamped
it it not compairable, look there.
experience and i compair with RDH20 and Bassel with Flute, by test cd´s
the rear driver could be a cheap one, EBP > 120
The mini Posaune is the smallest of five constructions look my HP
Kornett, Posaune
posaune
kornett
No, parallel vs series connection only sets the overall impedance, the polarity of the drivers and how they are mounted make it a bipole or dipole. From your impedence plots it looks like nominal 8 ohms. If two drivers are connected, it would mean they are 4 ohms in series. Since you say it acts like omni, I assume the driver polarity and mounting is such that both cones push out for a positive pulse input? From what I have seen in your past builds, the driver on the back side tends to be mounted with magnet out, so for a bipole, the polarity on rear driver is reversed?
Measurement
Hello,
here the frequenz plot, much bass by placing near a wall and
on a concret 50x50x5 cm 30 Kg, on carpet the bass gets a bit
warmer.
The max. Spl 95 dB, ~3-4 W, stroke ~1,5-2 mm, down 35 Hz,
my room 22 qm.
Every Test listener said, two 3" unbelieveable.
sound near the Kangling.
http://www.diyaudio.com/forums/full-range/245962-kangling-double-horn-technic.html
Hello,
here the frequenz plot, much bass by placing near a wall and
on a concret 50x50x5 cm 30 Kg, on carpet the bass gets a bit
warmer.
The max. Spl 95 dB, ~3-4 W, stroke ~1,5-2 mm, down 35 Hz,
my room 22 qm.
Every Test listener said, two 3" unbelieveable.
sound near the Kangling.
http://www.diyaudio.com/forums/full-range/245962-kangling-double-horn-technic.html
Attachments
Hellow!
Can i use visaton frs 8 m drivers for Mini Posatune?
Or Trombone is better suited for them?
Can i use visaton frs 8 m drivers for Mini Posatune?
Or Trombone is better suited for them?
yes, but as you see at the Trombone you may need a notch filter,
today i also prefer the white driver in Front and the black invers +-changed,
https://www.hifisound.de/de/Lautspr...ss-TG9FD-10-08-Vifa-9-BG-119-8-Glasfaser.html
https://www.hifisound.de/de/Lautspr...rless-TC9FD-18-08-Vifa-9-BN-119-8-Papier.html
my impression with these drivers, no needed filter, like scan speak.
today i also prefer the white driver in Front and the black invers +-changed,
https://www.hifisound.de/de/Lautspr...ss-TG9FD-10-08-Vifa-9-BG-119-8-Glasfaser.html
https://www.hifisound.de/de/Lautspr...rless-TC9FD-18-08-Vifa-9-BN-119-8-Papier.html
my impression with these drivers, no needed filter, like scan speak.
- Status
- Not open for further replies.