What electronic components are best to use to equalize volume levels of 2 speakers with different sensitity from same amp without losing too much quality?
I am aware that speaker is dynamic load and series resistor is not best idea as it wont get correct volateges to speaker.
Other alternative might be series resistor with another resistor parralel with speaker to reduce dynamic load voltage differences to loudspeaker.
One pair of speakers is floorstanders and with about 86-87dB/W sensitivity 6Ohm,
Other speaker that needs similar volume level is fostex fullrange 90dB/W - 8Ohm
I am aware that speaker is dynamic load and series resistor is not best idea as it wont get correct volateges to speaker.
Other alternative might be series resistor with another resistor parralel with speaker to reduce dynamic load voltage differences to loudspeaker.
One pair of speakers is floorstanders and with about 86-87dB/W sensitivity 6Ohm,
Other speaker that needs similar volume level is fostex fullrange 90dB/W - 8Ohm
Last edited:
A resistor will raise the Qts of the fostex, best answer, another amp. Adding another resistor parallel to speaker is called an L-pad, this would reduce the value of the one in series. It would waste a little power but not much. Find a pad calculated online.
A resistor will raise the Qts of the fostex,..
Does secondary parralel resistor reduce the problem?
Would use fostex mostly for clear midrange , bass comes from floorstanding speakers.
Does secondary parralel resistor reduce the problem?
Would use fostex mostly for clear midrange , bass comes from floorstanding speakers.
I think it is oppsite , newer amps have many channels and controls for each ch.
Old 2ch stereo could use balance only if make 2 mono speakers and using 1ch for each pair.
For 4dB attenuation l-pad calc gave 2.952 Ohm series and 13.678 Ohm parralel.
Is it valid idea to put 2 Ohm series and 8Ohm parralel to improve Qts(control over driver?) ?
Is there some schematic that would make decent SS amp for fostex fullrange, ?
5-20W output power would be enough.
Last edited:
Sounds like an opportunity to explore the flexibility of multi-amping - some of today's very affordable and excellent sounding Class D models can almost cost less than "audiophile grade" parts for a passive XO or attenuation L Pad.
I've had excellent results with one of the Sure 4 channel boards from Parts Express, but there's a plethora of options from a wide range of suppliers.
I've had excellent results with one of the Sure 4 channel boards from Parts Express, but there's a plethora of options from a wide range of suppliers.
Main amp may also be able to handle 2 speaker pairs well, but would need L-pad.
I think it can control the load of about 6ohm+6ohm, 3ohm well as it has decent heatsinks to dissipate well and 4x 200w transistors per channel.
The widerange is max 10-20W RMS, with higer it will probably burn down and turn itself off before load can create problems to amp unless during burning itl short the channels.
Class D board is interesting advice but there is plenty of selection, i am sure alot can be achived with IC-s in todays world.
10-30W of clean class D power would be enough, also the fostex 108ez may be quite easy to drive.
I think it can control the load of about 6ohm+6ohm, 3ohm well as it has decent heatsinks to dissipate well and 4x 200w transistors per channel.
The widerange is max 10-20W RMS, with higer it will probably burn down and turn itself off before load can create problems to amp unless during burning itl short the channels.
Class D board is interesting advice but there is plenty of selection, i am sure alot can be achived with IC-s in todays world.
10-30W of clean class D power would be enough, also the fostex 108ez may be quite easy to drive.
Last edited:
- Status
- Not open for further replies.