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joessportster

TUBA HT Amp ?

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Hello Again

 

As I have 2 tuba subs setting static, and I have opened up an output on my pre do you guys with practical experience believe the sub amp out of an old klipsch SW350 would be sufficient power for the TUBA (Only plan to run a single for music augmentation below 40 hz) according to specs the amp delivers 350 WPC.  

 

Joe

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350 wpc will work.  The only issue I could think of is that many plate amps from powered subs have filters built in to either boost certain frequencies or cut certain frequencies as they're tailor made for specific applications.

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Tuba sub does not need a lot of power. I ran one that had the Dayton Audio 15” mkII with a small 100 watt amp and it was pretty good
But then I used a Yamaha p5000s in mono and WOW , then it showed me what it could really do. Best thing is just hook it up and hear what it sound like. And pay attention to any distortion that may show up at higher volume levels and if you start hearing that then you know your starting to clip the Amp
What driver are you using and what’s its power ratings for rms and Peak power ?

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As Carl said 350 will be fine I ran mine with a Bash 300 plate amp for a long time.

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I run a Marantz MA700 200w monoblock on my Tuba HT LP corner loaded in my 350 sq foot living room for both movies and music with good results. But, I've yet to really dial it in below my new JubeKhorns with a MiniDSP 2x4 HD I bought for the purpose.  We'll see if it's enough soon.

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1 hour ago, joessportster said:

Hello Again

 

As I have 2 tuba subs setting static, and I have opened up an output on my pre do you guys with practical experience believe the sub amp out of an old klipsch SW350 would be sufficient power for the TUBA (Only plan to run a single for music augmentation below 40 hz) according to specs the amp delivers 350 WPC.  

 

Joe

You're kidding, right? 20 watts driving a Tuba should shake your house and flex your windows.

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You're kidding, right? 20 watts driving a Tuba should shake your house and flex your windows.


I am also confused by this. THT and THTLP are super efficient. I would think 20-30W should be more than adequate.

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The only way you will get that sub to cross over that low will be with a steep filter.

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Thanks for all the replies, I am not sure what drivers Joem38 (I Think I have the name right) used in these, I bought them from him already built. He did not elaborate on driver used he was happy enough to rattle his floors as a demo and I was happy to haul them home.  I just pulled the driver outta the sw350 to test the waters, ran a patch cord to the Tuba and have the crossover set around 50Hz.  Sounds pretty good so far...........

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Bash 300 is what BFM recommends for Tuba, pretty sure he claims there is nothing to be gained by using more power.

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40 minutes ago, joessportster said:

Thanks for all the replies, I am not sure what drivers Joem38 (I Think I have the name right) used in these, I bought them from him already built. He did not elaborate on driver used he was happy enough to rattle his floors as a demo and I was happy to haul them home.  I just pulled the driver outta the sw350 to test the waters, ran a patch cord to the Tuba and have the crossover set around 50Hz.  Sounds pretty good so far...........

 

Like Claude said, power should not be a concern.

 

Using a standard plate amp crossed over @ 50 Hz i bet the sub does not start rolling off until 75 Hz or higher depending on crossover slope.

 

Likely you will need a 36-48 dB/octave slope filter set much lower to accomplish the task of 40 Hz crossover point mentioned in first post.

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Thanks for the input, sad to say it all greek to me. What I can tell you is The bass is definitely filled in with more than enough low end grunt for my room. I turned the built in crossover up to approx 50Hz and volume at maybe 50%

 

Sounds pretty freaking great IMHO :) 

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2 hours ago, joessportster said:

have the crossover set around 50Hz.  Sounds pretty good so far...........

You mean, FEELS pretty good, so far, right?

 

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7 minutes ago, ClaudeJ1 said:

You mean, FEELS pretty good, so far, right?

 

Feels & sounds Pretty good, the floor and couch are vibrating quite nicely, the wife commented from the kitchen a couple times, and the boys were startled by the bass impact :) 

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1 hour ago, joessportster said:

Feels & sounds Pretty good, the floor and couch are vibrating quite nicely, the wife commented from the kitchen a couple times, and the boys were startled by the bass impact :) 

Welcome to the club. BTW, the 18" subs I got from you years ago are now rocking a house 7.2 HT in Cleveland with 3-Super Heresy's in front and 4 Klipsch KPT 200 surrounds!

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1 hour ago, ClaudeJ1 said:

Welcome to the club. BTW, the 18" subs I got from you years ago are now rocking a house 7.2 HT in Cleveland with 3-Super Heresy's in front and 4 Klipsch KPT 200 surrounds!

I remember those subs, HEAVY Bas#$%ds..........They sure would thump though..............Sounds like someone in Ohio has a very nice HT

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