1 of 3 woofers = only 1/3 of the power needed? && Sealed woofer +tube amp = no sence?
Hi,
could you please do me a favor and answer a few very basic questions. I'm not there yet to answer by myself but need to know earlier than I will be...
At the moment I'm about to get into tubes. I bought a few more ore less broken tube radios to get in touch by debugging. I got basic electronic equipment including an oscilloscope. Contrary to these practical challenges, in terms of the theoretical ones I'm not same completely unprepared because of studying EE. Getting into analog electronics and audio motivated by the goal to make it to decent tube sound in my room is what I'm about and what also the current status is: just started to reach out for skills and hardware.
Please have a look at these speakers:
When they were launched in 2013 two of them were £2400. They are not built/sold anymore but Teufel refers to "their next generation" called Teufel Stereo L which are £1580 for two (but are actually quite different ones).
Somebody wants to sell me a single one of these woofer chassis for £80 (...or 70 I think). The manual says (look at attached pic), that the amp should provide at least 50W. So maybe it's meant, 50W in total for two of them or 50W for a single speaker? Anyway if we forget about the koaxial chassis, there are either 3 or 6 woofer chassis which this minimum of 50W is devided into. So is it correct, that an amp for a singe woofer chassis should provide at least 10W/20W? (This could be realised by tubes in the future.)
Because these speakers are a sealed concept (each woofer by itself, seperated rooms inside the speaker), they are not very sensitive... 85dB as you can see in the attached pic. I thought about a sealed box with the same volume as one woofer got in the original speaker and some kind of big horn construction attached. Does this make sense to you or should I stay away from this woofer chassis because it needs way too much power or should not be run seperated from the other two woofers? -Or both or even because of other reasons?
A woofer like this additionally to a bigger subwoofer chassis would make much sense for me because listening a lot to music where bass is absolutely important (like dark psy, progessive, hardtek....). It could perfectly be used as a kick bass I suppose.
Lets not think about crossover (yet). The main question for the moment is to buy or not to buy. So help me out with some expertise, please. Is much appreciated.
Thank you guys a lot!
Hi,
could you please do me a favor and answer a few very basic questions. I'm not there yet to answer by myself but need to know earlier than I will be...
At the moment I'm about to get into tubes. I bought a few more ore less broken tube radios to get in touch by debugging. I got basic electronic equipment including an oscilloscope. Contrary to these practical challenges, in terms of the theoretical ones I'm not same completely unprepared because of studying EE. Getting into analog electronics and audio motivated by the goal to make it to decent tube sound in my room is what I'm about and what also the current status is: just started to reach out for skills and hardware.
Please have a look at these speakers:
When they were launched in 2013 two of them were £2400. They are not built/sold anymore but Teufel refers to "their next generation" called Teufel Stereo L which are £1580 for two (but are actually quite different ones).
Somebody wants to sell me a single one of these woofer chassis for £80 (...or 70 I think). The manual says (look at attached pic), that the amp should provide at least 50W. So maybe it's meant, 50W in total for two of them or 50W for a single speaker? Anyway if we forget about the koaxial chassis, there are either 3 or 6 woofer chassis which this minimum of 50W is devided into. So is it correct, that an amp for a singe woofer chassis should provide at least 10W/20W? (This could be realised by tubes in the future.)
Because these speakers are a sealed concept (each woofer by itself, seperated rooms inside the speaker), they are not very sensitive... 85dB as you can see in the attached pic. I thought about a sealed box with the same volume as one woofer got in the original speaker and some kind of big horn construction attached. Does this make sense to you or should I stay away from this woofer chassis because it needs way too much power or should not be run seperated from the other two woofers? -Or both or even because of other reasons?
A woofer like this additionally to a bigger subwoofer chassis would make much sense for me because listening a lot to music where bass is absolutely important (like dark psy, progessive, hardtek....). It could perfectly be used as a kick bass I suppose.
Lets not think about crossover (yet). The main question for the moment is to buy or not to buy. So help me out with some expertise, please. Is much appreciated.
Thank you guys a lot!
These are brutally inefficient home audio speakers where literally less than 1% of the power sent to the driver produces sound so it won't get very loud, does that suit your goals here?
Recommended 50 wats of amplifier power is given only because the loudspeaker sensitivity is low. Lets forget about the recommended 50 wats of amplifier power for a moment, and concentrate on the loudspeaker sensitivity. It is only 85 dB/2.83V/1m for the whole loudspeaker system, which is too low for a tube amplifier - especially a low power one.
Those three woofers are connected either in parallel or in series. If they are connected in series than each woofer has the same 85 dB/2.83V/1m sensitivity - too low for a tube amplifier. If they are connected in parallel than each woofer has only 76 dB/2.83V/1m sensitivity - catastrophically low. Either way - too low sensitivity.
Forget any complication like attaching that woofer to a big horn. Instead, buy a high sensitivity woofer with 95 dB/2.83V/1m sensitivity, like Celestion Pulse 12. It is only 89 EUR at Thomann (www.thomann.de):
Celestion Pulse 12 – Musikhaus Thomann
About 100 liters vented box tuned to 35-40 Hz will be perfect for the Pulse 12.
Those three woofers are connected either in parallel or in series. If they are connected in series than each woofer has the same 85 dB/2.83V/1m sensitivity - too low for a tube amplifier. If they are connected in parallel than each woofer has only 76 dB/2.83V/1m sensitivity - catastrophically low. Either way - too low sensitivity.
Forget any complication like attaching that woofer to a big horn. Instead, buy a high sensitivity woofer with 95 dB/2.83V/1m sensitivity, like Celestion Pulse 12. It is only 89 EUR at Thomann (www.thomann.de):
Celestion Pulse 12 – Musikhaus Thomann
About 100 liters vented box tuned to 35-40 Hz will be perfect for the Pulse 12.
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