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Full range >98dB SPL drivers for 45 tube
Full range >98dB SPL drivers for 45 tube
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Old 24th March 2018, 02:40 AM   #1
ripson is offline ripson  Europe
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Default Full range >98dB SPL drivers for 45 tube

Hi guys, I am new to full range drivers. I am looking for drivers with >98dB SPL that would make a great companion with my SET amp with 45 tube - 1.5W RMS, OPTs secondary winding are for 8 and 16 Ohm.

Any ideas?

Last edited by ripson; 24th March 2018 at 12:58 PM.
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Old 24th March 2018, 03:03 AM   #2
xrk971 is offline xrk971  United States
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Full range >98dB SPL drivers for 45 tube
Two 3FE25-16ohm in parallel is about 97dB. Put in a 0.53x scale Karlsonator.

Mini Karlsonator (0.53X) with Dual TC9FD's
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Old 24th March 2018, 01:01 PM   #3
ripson is offline ripson  Europe
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This looks interesting, thanks for that, I will check this out. What I like about these drivers is that they have quite flat plot and they are... pretty cheap. How about drivers with lower Fs so would not need to use a subwoofer?

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Old 24th March 2018, 02:14 PM   #4
nesha is offline nesha  Serbia
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FC-152F01TC
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Old 24th March 2018, 03:37 PM   #5
xrk971 is offline xrk971  United States
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Full range >98dB SPL drivers for 45 tube
That 0.53x Karlsonator cabinet is a ML-TQWT with Karlson aperture and reaches a substantial 50Hz with about same efficiency as highs. The bass is very good and for most music you won’t miss a sub.

If you really want to dig deeper with lower fs you are looking at much larger and expensive drivers that won’t have as good top end.
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Old 24th March 2018, 04:00 PM   #6
FullRangeMan is offline FullRangeMan  Brazil
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Quote:
Originally Posted by ripson View Post
Hi guys, I am new to full range drivers. I am looking for drivers with >98dB SPL that would make a great companion with my SET amp with 45 tube - 1.5W RMS, OPTs secondary winding are for 8 and 16 Ohm.

Any ideas?
With this fine SET you must use Alnico FR or Field Coils that are somewhat rare today, avoid Ferrite magnets.
This big cone have great presence:
http://www.commonsenseaudio.com/an12alnicospecs.jpg
The room is small?
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Old 24th March 2018, 04:20 PM   #7
Lingwendil is online now Lingwendil  United States
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Full range >98dB SPL drivers for 45 tube
Nonsense. Ferrite magnets will work just fine. So will ~3" class drivers. Dual drivers is even better.

I run the 2x 3FE25-16 0.53x Karlsonator with a 1 watt tube amplifier (1.3w max before clip) and it is more than adequate in a pretty large room, and would highly recommend the dual 3FE25 karlsonator, its perfect for flea power amplifiers.
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Old 24th March 2018, 04:32 PM   #8
FullRangeMan is offline FullRangeMan  Brazil
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Any speaker will work, Alnicos are know to have a special sinergy with SE amps (SS and Tubes).
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Old 24th March 2018, 04:56 PM   #9
Scottmoose is offline Scottmoose  United Kingdom
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So what you are saying is that

a/ All AlNiCo magnets are created equal. And

b/ The mere fact that a driver possesses an AlNiCo magnet (irrespective of its grade / quality, actual strength, the overall motor, suspension & cone design) means that it is automatically superior to a driver with a ferrite motor.

Twaddle.

AlNiCo can (as in 'can') have some advantages over ferrite magnets. It also possesses some disadvantages too. It is not automatically 'better', and many drivers currently produced using it do so for marketing, not acoustic purposes. Superiority depends on the quality of the magnet, and of the motor design (assuming otherwise identical drivers). As for drivers with AlNiCo magnets having a natural affinity with SET amplifiers -not if they already have a high Q they don't, since all you'll do is raise it even higher. They can work well. Another 'can', not 'automatically do'.
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Old 24th March 2018, 05:05 PM   #10
KaffiMann is offline KaffiMann  Norway
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Full range >98dB SPL drivers for 45 tube
Another vote for the Fane 15" FC152. Single driver that delivers.
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