Hello.
I have two couple of speakers with altec lansing 409-8c coaxial drivers, each of them driven by an integrated tube amp. One couple of these altec goes first through the speaker level imputs of two vintage Yamaha subwoofers. A couple of pictures, so you will understand:
These Altec speakers have a sensitivity of 97 db, nominal impedance 8 ohm and minimum impedance 6 ohm, and an advertised frequency response of 50 hz/14 khz.
I would like these speakers to be driven in parallel by just one amplifier, each channel going first through one active subwoofer, then two coaxials in parallel and, in order to have a higher impedance as a result, I would like to add a 16 ohm vintage compression driver and horn for each channel, with a crossover like EV c35.
Do you think it will work? What kind of impedance will I have? What vintage compression driver and horn do you recommend? What crossover?
(I can't build a crossover myself, I'm quite a novice)
What kind of sensitivity will I have with two 97db speakers in parallel for each channel? 100 db?
In short, each channel, after the amplifier, there will be a subwoofer, two coaxial drivers Altec 409 in parallel, then a crossover and a compression driver and horn. The horn will go on top of two speakers.
In short, if this is feasible, what I lack is compression drivers, horns and crossovers, and also the knowledge. Compression drivers and horns should not be very heavy. I've got fibromyalgia and can't lift heavy weights.
Thanks in advance.
I have two couple of speakers with altec lansing 409-8c coaxial drivers, each of them driven by an integrated tube amp. One couple of these altec goes first through the speaker level imputs of two vintage Yamaha subwoofers. A couple of pictures, so you will understand:
These Altec speakers have a sensitivity of 97 db, nominal impedance 8 ohm and minimum impedance 6 ohm, and an advertised frequency response of 50 hz/14 khz.
I would like these speakers to be driven in parallel by just one amplifier, each channel going first through one active subwoofer, then two coaxials in parallel and, in order to have a higher impedance as a result, I would like to add a 16 ohm vintage compression driver and horn for each channel, with a crossover like EV c35.
Do you think it will work? What kind of impedance will I have? What vintage compression driver and horn do you recommend? What crossover?
(I can't build a crossover myself, I'm quite a novice)
What kind of sensitivity will I have with two 97db speakers in parallel for each channel? 100 db?
In short, each channel, after the amplifier, there will be a subwoofer, two coaxial drivers Altec 409 in parallel, then a crossover and a compression driver and horn. The horn will go on top of two speakers.
In short, if this is feasible, what I lack is compression drivers, horns and crossovers, and also the knowledge. Compression drivers and horns should not be very heavy. I've got fibromyalgia and can't lift heavy weights.
Thanks in advance.
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With just two Altec speakers connected in parallel for each channel, I would probably have 4 ohm of nominal impedance and 3 ohm of minimum impedance, maybe lower. Wouldn't it be heavy for the amplifier? This hypotetical system is supposed to be driven by a single ended triode tube amp, 3+3 watts, with 4 ohm and 8 ohm taps.
I would like to have more sensitivity, around 100 db instead of the 97 db of the two couple of speakers driven individually, and a bit more impact, with a nominal impedance closer to 6 or 8 ohm, just to be safe. But also a little bit more extension on the high frequencies. I thought that a 16 ohm tweeter could bring the impedance up a bit.
This thread is only to discover whether it will work or not.
I would like to have more sensitivity, around 100 db instead of the 97 db of the two couple of speakers driven individually, and a bit more impact, with a nominal impedance closer to 6 or 8 ohm, just to be safe. But also a little bit more extension on the high frequencies. I thought that a 16 ohm tweeter could bring the impedance up a bit.
This thread is only to discover whether it will work or not.
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The fact is that I haven't got a clue how to connect two full range coaxial speakers in parallel and a horn tweeter. Not a clue.
My bloody broken english.....
I'll try to explain myself better.
What I would like to do is connecting the two 8 ohm Altec Coaxial speakers in parallel but bringing the impedance a little bit up, towards the 6-8 ohm range.
My two integrated tube amps do not have a 16 ohm tap, so I can't connect the speakers in series.
What options do I have to bring the impedance up if I connect in parallel? Adding a super tweeter? What impedance for the super tweeter? Would an electro voice x36 crossover and t35 tweeter work? What would a crossover add to the equation? Any other option to bring up the impedance of the two speakers in parallel?
Please, correct me if I'm wrong. The two Altec speakers have 8 ohm nominal and 6 ohm minimum each. If I connect them in parallel I would have 4 ohm nominal but I don't know what the minimum impedance will be. I'm afraid it may damage the single ended tube amp.
Thanks
I'll try to explain myself better.
What I would like to do is connecting the two 8 ohm Altec Coaxial speakers in parallel but bringing the impedance a little bit up, towards the 6-8 ohm range.
My two integrated tube amps do not have a 16 ohm tap, so I can't connect the speakers in series.
What options do I have to bring the impedance up if I connect in parallel? Adding a super tweeter? What impedance for the super tweeter? Would an electro voice x36 crossover and t35 tweeter work? What would a crossover add to the equation? Any other option to bring up the impedance of the two speakers in parallel?
Please, correct me if I'm wrong. The two Altec speakers have 8 ohm nominal and 6 ohm minimum each. If I connect them in parallel I would have 4 ohm nominal but I don't know what the minimum impedance will be. I'm afraid it may damage the single ended tube amp.
Thanks
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