I have a pair of vintage speakers, and I would like to convert them into active Bluetooth speakers. I know that it may be cheaper just to buy a pair of Bluetooth active speakers, but I would like to modify this pair of oldies.
Questions:
Which plate amp as these old acoustic suspense speakers need a bit of power to perform? Most high power plate amp that I found online are for subwoofers, what can I do?
Adding bluetooth, how to do that?
Thanks for helping.
Questions:
Which plate amp as these old acoustic suspense speakers need a bit of power to perform? Most high power plate amp that I found online are for subwoofers, what can I do?
Adding bluetooth, how to do that?
Thanks for helping.
Allison One vintage speakers:
Specifications Speaker complement:Two 10" (254 mm) woofers;Two 3½" (89 mm) Convex Diaphragm mid-range units;Two 1" (25 mm) Convex Diaphragm tweeters
Crossover frequencies: 350 and 3,750 Hz Crossover network: LC half-section at both crossover frequencies. Air-core chokes and non-polar computer-grade capacitors are used. Three-position control switch (accessible from front) supplied for selection of system acoustic power response, from nominally flat to concert-hall balance slope.
Impedance: 8 Ω nominal (7 Ω minimum at any setting of balance switch) Efficiency: better than 0,7% when placed at floor-wall intersection.
Minimum amplifier power: 30 watts per channel to produce 100 dB sound pressure level in most domestic room environments. Acoustic power output capability: 0,5 acoustic watt minimum , over full frequency range, with 70 watt peak input.
System resonance frequency: 45 Hz, nominal Effective system Q: 1.0. Low-frequency response -3 dB at 35,5 Hz, -6 dB at 29,5 Hz
Specifications Speaker complement:Two 10" (254 mm) woofers;Two 3½" (89 mm) Convex Diaphragm mid-range units;Two 1" (25 mm) Convex Diaphragm tweeters
Crossover frequencies: 350 and 3,750 Hz Crossover network: LC half-section at both crossover frequencies. Air-core chokes and non-polar computer-grade capacitors are used. Three-position control switch (accessible from front) supplied for selection of system acoustic power response, from nominally flat to concert-hall balance slope.
Impedance: 8 Ω nominal (7 Ω minimum at any setting of balance switch) Efficiency: better than 0,7% when placed at floor-wall intersection.
Minimum amplifier power: 30 watts per channel to produce 100 dB sound pressure level in most domestic room environments. Acoustic power output capability: 0,5 acoustic watt minimum , over full frequency range, with 70 watt peak input.
System resonance frequency: 45 Hz, nominal Effective system Q: 1.0. Low-frequency response -3 dB at 35,5 Hz, -6 dB at 29,5 Hz
If you want to convert this acoustics into active, then without measurements using a microphone, achieving a high positive result is unlikely.
If you want to get involved in this alteration, then consider this version of the three-band amplifier board that supports not only Bluetooth but also WiFi and TOSLINK.
This DSP Amp is designed for integration into three-band acoustics. The output power can be reduced by supply voltage.
https://www.diyaudio.com/community/threads/3-way-dsp-amp.415065/#post-7734938
If you want to get involved in this alteration, then consider this version of the three-band amplifier board that supports not only Bluetooth but also WiFi and TOSLINK.
This DSP Amp is designed for integration into three-band acoustics. The output power can be reduced by supply voltage.
https://www.diyaudio.com/community/threads/3-way-dsp-amp.415065/#post-7734938
Active means that the mains cable is attached to the cabinet. I think that the only problem might be represented by the BT module, which isn't splitted in two units, L&R.