Thinking of upgrading my Paradigm Sub 25.....suggestions? - Page 6 - AVS Forum
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post #151 of 177 Old 09-29-2013, 07:06 PM
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Quote:
Originally Posted by jbrown15 View Post

If you had no plans on adding a second sub down the road I would probably not get a single Triax then.

You said it was going to be for movies use only, so I would think in single port mode a FV15HP would still have more output then a F25 down to 12hz up to 50hz, above 50hz I would suspect that the F25 would have more output.

If you have the budget for it I would suggest contacting Mark at Seaton and talk to him about either a SubM HP or SubM F2 with the master/ slave combo setup. I think that would be a great setup for about 4 grand.

Give the choice of the Seaton master/ slave setup or dual FV15HP's and budget wasn't a concern I would go with the Seaton's. I just think they are a step up of the Rythmik subs.

Rythmik claims the FV15HP only has a 1db advantage at 20hz. The F25 has twice the displacement and 25% more power...that should make up for 4-5db of the FV15's port tune advantage.

Its The same principle when you compare the PSA XV15 and XS30. Being the XS30 has twice the displacement and 25% more power, it can make up for all but .5db of the XV15's port tune advantage.
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post #152 of 177 Old 09-29-2013, 07:31 PM - Thread Starter
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Quote:
Originally Posted by basshead81 View Post

Rythmik claims the FV15HP only has a 1db advantage at 20hz. The F25 has twice the displacement and 25% more power...that should make up for 4-5db of the FV15's port tune advantage.

Its The same principle when you compare the PSA XV15 and XS30. Being the XS30 has twice the displacement and 25% more power, it can make up for all but .5db of the XV15's port tune advantage.

AHHH. lol. So which one should I go with? You guys keep making this hard even when I have it almost nailed down to a choice......
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post #153 of 177 Old 09-29-2013, 07:34 PM - Thread Starter
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BTW, the only reason why the SUB 2 is an option @ $4000 is because I have an unused GE Financial Account for 2yrs Same as Cash at my Paradigm retailer. Any of the other options is cash out of pocket, which means my max budget can only be $3000 in those instances (hence, no chance for dual Seatons and even the Triax at the upcoming normal price after pre-orders would not be doable).
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post #154 of 177 Old 09-29-2013, 07:48 PM
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DUAL F25's !!!!!!!!

They will give you solid extension down into the single digits...and with your room, more then likely you will get solid room gain to lift the bottom end and make use of that deep extension.
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post #155 of 177 Old 09-29-2013, 08:06 PM - Thread Starter
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Originally Posted by basshead81 View Post

DUAL F25's !!!!!!!!

They will give you solid extension down into the single digits...and with your room, more then likely you will get solid room gain to lift the bottom end and make use of that deep extension.

Sounds good to me, especially since Rythmik is out of stock on the Black Oak finish until end of October at least.

Lastly, now that I have it narrowed down to an ID subwoofer (well, duals).....I have to ask:
SUB 2 vs. Dual F25's - Will the SUB 2 have ANY type of noticeable advantage over the dual F25's?

Hey, I am very thorough in my buying process. lol.

Thanks!
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post #156 of 177 Old 09-29-2013, 08:18 PM
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From the data I have seen I would say no. Dual F25's will leave you gasping for breath. Those are the subs I would have bought, but Rythmik was not shipping them at the time I was shopping for subs.
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post #157 of 177 Old 09-29-2013, 08:21 PM
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Based on 2m ground plan measurements published by Audioholics one FV15HP got 107.5dB @20Hz and the Sub2 got 106.4dB at 20Hz. According to Rythmik the FV15HP's advantage over the F25 at 20Hz is 1dB (F25 would have advantage lower down and higher up). As such one could deduce that one F25 should be equal in output to one Sub2 and obviously two F25s should smash one Sub2.
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post #158 of 177 Old 09-29-2013, 08:22 PM - Thread Starter
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Quote:
Originally Posted by basshead81 View Post

From the data I have seen I would say no. Dual F25's will leave you gasping for breath. Those are the subs I would have bought, but Rythmik was not shipping them at the time I was shopping for subs.
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Originally Posted by Avgass View Post

Based on 2m ground plan measurements published by Audioholics one FV15HP got 107.5dB @20Hz and the Sub2 got 106.4dB at 20Hz. According to Rythmik the FV15HP's advantage over the F25 at 20Hz is 1dB (F25 would have advantage lower down and higher up). As such one could deduce that one F25 should be equal in output to one Sub2 and obviously two F25s should smash one Sub2.

Decision made then. And perfect timing too, as I have a payment pending on my Sub 25 already.
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post #159 of 177 Old 09-29-2013, 10:07 PM
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I'm a bit late to the party, but after reading the entire thread I was going to vote for the dual F25s, so I think you made the right choice. I've been a fan of servo subs for a long time...nothing I've heard matches the accuracy and "tight" sound of good sealed servo sub. Since this is a movie only system that might not matter as much, but it can't hurt. It takes some people a little time to get used to the servo sound...you'll hear the explosions and deep bass hits as a BOOM instead of a BOOOOOOM. (although you are coming from a high quality system, so that will probably be less of an issue for you). Congrats on the new subs, and be sure to post back with your impressions after you get them set up.
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post #160 of 177 Old 09-29-2013, 10:28 PM
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Quote:
Originally Posted by BigCoolJesus View Post


Decision made then. And perfect timing too, as I have a payment pending on my Sub 25 already.

Both the F25 and FV15HP are great subs, you really couldn't of gone wrong with either choice. If the F25 had been available when I ordered my subs I could of very well ended up with dual F25's too.

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post #161 of 177 Old 09-30-2013, 08:25 AM
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What about the difference in the F25's DS1501 woofers verses the F15HP's DS1510 one?

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post #162 of 177 Old 09-30-2013, 10:09 AM
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I thought the current F25 that has the 800watt amp has the upgraded drivers? Aside from that I thought Brian said the difference is minimal anyway?
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post #163 of 177 Old 09-30-2013, 10:19 AM
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Quote:
Originally Posted by basshead81 View Post

I thought the current F25 that has the 800watt amp has the upgraded drivers? Aside from that I thought Brian said the difference is minimal anyway?

"The standard amplifier of F25 is H800XLR3. It has two Hypex 400WRMS power amplifier modules in one heat sink so that each module independently drive one driver with servo control."
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post #164 of 177 Old 09-30-2013, 10:46 AM
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Originally Posted by ZivkoF View Post

"The standard amplifier of F25 is H800XLR3. It has two Hypex 400WRMS power amplifier modules in one heat sink so that each module independently drive one driver with servo control."

The last I checked 400+400=800...some of you guys really like to stand in the back ground waiting to nit pick a post. Can you answer the question about the driver?
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post #165 of 177 Old 09-30-2013, 11:08 AM
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Quote:
Originally Posted by basshead81 View Post

Can you answer the question about the driver?
From what I've read, the drivers are largely similar in terms of T/S specs, though the 1510 has a bit more excursion capability (~25mm xmax per prior correspondence with Brian) versus the 1501 (15mm xmax per Rythmik's website).
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post #166 of 177 Old 09-30-2013, 11:47 AM
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F25 has the 1501 drivers. You can pay extra for for the 1505s or 1510s. 1510 drivers have 20mm xmax although you would need a bigger amp to make use of the extra excursion.
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post #167 of 177 Old 09-30-2013, 12:18 PM - Thread Starter
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Quote:
Originally Posted by Avgass View Post

F25 has the 1501 drivers. You can pay extra for for the 1505s or 1510s. 1510 drivers have 20mm xmax although you would need a bigger amp to make use of the extra excursion.

Any noticeable difference heard between upgrading the drivers?
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post #168 of 177 Old 09-30-2013, 12:28 PM
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Yeah if each driver only gets 400 watts supplied to it from the amp what would be the point of upgrading the driver to one with more xmax?

I'm sure if it made a significant difference wouldn't Brian have just used the better driver to start with?

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post #169 of 177 Old 09-30-2013, 12:31 PM
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Quote:
Originally Posted by Avgass View Post

F25 has the 1501 drivers. You can pay extra for for the 1505s or 1510s. 1510 drivers have 20mm xmax although you would need a bigger amp to make use of the extra excursion.

Hey Brian I would like to buy a F25 but I’m wondering if you might be able to upgrade the drivers and amp? If so, is there a chance we might discuss the veneer options also? We can talk about the feet afterwards. smile.gif

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post #170 of 177 Old 09-30-2013, 02:27 PM
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There shouldn't be any noticeable difference between the drivers, but the single dish ones (DS1505 and DS1510) do look nicer to me. The DS1510 would likely do slightly better with long term power compression given the larger dia voicecoil and greater power handing although it's unlikely you would ever run into trouble with a pair of F25s, certainly not with movies.

Steve - you are joking right. For the benefit of anyone reading this - I'm not Brian. There is no bigger amp than the HX800XLR3 at present.
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post #171 of 177 Old 09-30-2013, 02:31 PM
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Quote:
Originally Posted by Avgass View Post

There shouldn't be any noticeable difference between the drivers, but the single dish ones (DS1505 and DS1510) do look nicer to me. The DS1510 would likely do slightly better with long term power compression given the larger dia voicecoil and greater power handing although it's unlikely you would ever run into trouble with a pair of F25s, certainly not with movies.

There could be a qualitative difference as well as a output difference, but how much, I don't know, that is something to PM Brian about.
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post #172 of 177 Old 09-30-2013, 02:58 PM
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It has been said a number of times that the drivers all sound very similar. The biggest advantage of going to DS1510s is a potential amp upgrade in the future (Brian has suggested an F25HP might be on the cards although this is probably a long way off)...

http://www.avsforum.com/t/1214550/official-rythmik-audio-subwoofer-thread/9870
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post #173 of 177 Old 09-30-2013, 05:15 PM
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Steve - you are joking right. For the benefit of anyone reading this - I'm not Brian. There is no bigger amp than the HX800XLR3 at present.

Yes I was just playing, it did seem to fit though cosidering the conversation.

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post #174 of 177 Old 09-30-2013, 05:38 PM
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What can I say? I just like subs and keep up to date on the latest developments in the Rythmik product line. My wife thinks I'm crazy.
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post #175 of 177 Old 09-30-2013, 06:23 PM
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What can I say? I just like subs and keep up to date on the latest developments in the Rythmik product line. My wife thinks I'm crazy.

You sure she's the only one that thinks that?...lol tongue.gif
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post #176 of 177 Old 09-30-2013, 06:34 PM
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I think a great sub would be dual opposed DS1510s. Big drivers, cabinet cancellation, and a more manageable size and form than the regular F25.
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post #177 of 177 Old 09-30-2013, 06:55 PM
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I think a great sub would be dual opposed DS1510s. Big drivers, cabinet cancellation, and a more manageable size and form than the regular F25.

Yes! This!! HX1200 version with a DO box!
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