REL Acoustics No. 25 Overview
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- Опубликовано: 21 май 2019
- No. 25 commemorates and celebrates our quarter century of building the finest sub bass systems, while pointing to the future and our next 25 years as it employs our most advanced design, engineering and craftsmanship.
Learn more about the No. 25 at rel.net/shop/powered-subwoofe...
See the entire REL Acoustics subwoofer line here - rel.net/product-category/powe...
Reference Defined
BEAUTY, POWER & SPEED
No. 25 combines the power of an ultra-reliable 1,000 watt amplifier, with a lightweight and perfectly balanced carbon fibre 15” driver. All this is controlled by our legendary filter sets and proprietary crossovers with 2 separate parametric equalizers permitting remarkably flat in-room response, while maintaining the speed and resolution for which modern RELs have become known.
We want our customers to enjoy all this performance without being limited to only a few room locations, so we built-in our legendary LongBow™ wireless receivers into every No. 25. This design utilizes zero compression, resulting in stunning dynamics and bass extension without being tethered to a cable, while delivering sound quality comparable to our competitor’s hardwired designs. It’s just another example of how we strive to offer complete and thoughtful solutions.
No. 25 marks a new standard in cabinet execution, both for its physical beauty and the manner in which it manages the critical backwave propagating from the rear surface of the massive 15″ carbon fibre piston at its heart. The shape of No. 25 is designed to disturb and cancel much of the incredible force created by the inward stroke as No. 25 reloads for your music or film’s next set of demands. It is necessary to keep this backwave as silent as possible, while allowing the driver to “breathe” without compressing dynamics. The curvilinear cabinet walls deflect, diffuse and dissipate these waves into smaller cross plane waves. Minimizing rear waves that eventually emerge as comb filtering - noise that cancels the primary bass - is what creates clear, purposeful bass that strides into a room with tremendous energy and clarity.
Comprised of 30mm thick (about 1 1/8″) Australian MDF, transected by hardwood spars that break up common mode resonances within the top surface of the cabinet and down its sidewalls, our bracing is not unlike the spars in a ship’s hull. Some may view this as excessive, but these are the lengths our design team goes to to deliver the finest subwoofer extant, fully fitting of the title No. 25. 
Хобби
I have the s812 and me and my friends are amazed with the quality of the bass this sub can produce.
It's a big sub, but when is well tuned with speakers, it can fully bland in and integrate!!
At the beginning I was very sceptical of a need to have a subwoofer in a stereo, but now I can't imagine listening to music without one.
We are glad to hear that you are enjoying the performance of your S/812 subwoofer! If you have any questions or concerns about your REL then feel free to let us know and we will be happy to assist.
George out looking sub. I can’t imagine what kind of income it takes to be able to invest $45,000 in six of these monsters. Sure would love to hear a setup with six of them.
I bet it's freakin sick
Dont forget to upgrade your home's electrical!
Either a business executive or owner or a surgeon. Maybe a lawyer. Even some IT jobs like cloud solutions architect or experienced devops can. Just don’t waste money on a fancy bmw and get this instead
riikerman not all subs are equal, yes the REL is expensive but so is a Ferrari compared to a Ford.
@riikerman u gotta be the dumbest person ever to compare in that way
Very nice piece of musical art! As a JL Audio lover also a lot of love for Rel. The 1508 Predator is also one of my favorites sinds today.
REL No.25 The best subwoofer in the world!
A REL N0.25.. A DD18+.. A Paradigm Sub 2 and a SVS SB16 Ultra... Sub heaven!
Amazing piece of art
Love my Rel 1508! I can't imagine how great the 25 sounds.
any issues with it making a buzzing noise?
@@KPAki1Ler No, not at all.
@@bdougwrx thanks for your reply, I read an owners thread the odd one had that issue.
I started with 2x T9i then 2x Carbon Special, and now ordered 2x no. 25 on the way to me in july, I can’t wait to hear that...
Those are some serious upgrades to your system! We hope that you love the performance of the stereo No.25s, and feel free to reach out if you have any questions or concerns about them.
I got into rel with the t9/I but when I’m more established in my career I’ll be getting 4 or 6 of these
How is the T9/i? I just ordered one. For a flagship, it seems so under powered with 300 watts, but everyone raves about it.
This is beautiful.
Are there any showrooms where we could hear them?
You can use our dealer locator here rel.net/dealers/ and search in your area for a dealer that has reference series listed under the subwoofer families they stock. You might want to call first to double check especially if its a long drive.
When complementing a No 25 with your speakers what are the key specifications of the main speakers that you are looking at? Assuming a 28x20x8.5 room size.
The size of the listening room plays a part, though typically we recommend the No.25 when a customer is using fairly large speakers that are very detailed and resolving in their output. For more information on if the No.25 is the right choice for your system, feel free to write in to contactus@rel.net and we will be happy to help.
Stand by switch wAs a good idea
Hi John other than the filters in the no 25, is there a difference in the new carbon special be the number 25? Which of the two is better for home theatre vs music? Since the carbon special came later is there newer technology in there that the no 25? If yes will the no 25 be upgraded to include newer technologies?
The Carbon Special was developed and launched more recently, though for both 2-channel music and home theater applications the No.25 is the higher performing subwoofer. The No.25 features a larger driver, more amplifier volume, and an advanced filter design which results in performance that is faster, more dynamic, and able to reach deeper than any of our other subwoofer models.
The configuration of the Line Array is automatic or have to be done manually on each sub?
For a subwoofer line array setup, each subwoofer will need to be manually tuned on their own, with final tuning adjustments being made after each individual unit sounds good and blends well on it's own.
I was wondering does the top have slots for staking so they just slot in? As I would imagine the weight and trying to line it up would be hard?
No, since they weigh about 200 lbs each they are stable when stacked without needing anything to help hold it together.
@@RELAcoustics thanks I really mean actually getting them into the correct position when you put one on top of another whiteout maybe scratching the top of the bottom one by moving the second sub a little bit, so I was thinking of a slot like how you stack Chord Electronics. Though maybe if you only bought one maybe it wouldn’t look so good with a slot.
Is this best that REL has to offer currently?
Yes. Well, actually using 6 of these to make stereo line arrays is the best we have to offer.
Don’t hesitate to reach out if you have any questions, we’re always happy to help with subwoofer recommendations or tuning help. You can reply here or email us at contactus@rel.net.
@@RELAcoustics I current have a pair of rel25 and considering for line array stacks. I’ve heard John was going write a “how to tune a line array stacks” blog. Im wondering if it’s available?
@@saiteiman We do have material in the works which will go into detail about setting up and tuning subwoofer line arrays, so stay tuned to our website and social media channels. That being said, if you have any questions about subwoofer tuning for your system then feel free to write in to contactus@rel.net and we will be happy to assist.
I’m not into beauty I’m into the sound
When you know that you are being sold to.... But you don't want it to stop.
I got a velodyne hgs 15 way back it's as useful as a chocolate teapot my neighbour has a sub I would call midrange and lasted longer than mine which costed 4 times as much. I will never part my cash on these overblown budget electronics I've learnt my lesson.
We're sorry to hear about the difficulties which you had with your older Velodyne subwoofer. If you ever are interested in adding another subwoofer into your home audio system, then feel free to write in to contactus@rel.net and we will be happy to assist.
Correction
It’s not review
It’s sales pitch
Technically I guess you could call it a sales pitch. The main goal of this piece is to share the purpose of this subwoofer's design and some of its features with our audience and who knows that better than the chief designer.
The title is "REL Acoustics No. 25 Overview". It does not say "review".
Why you gotta be a dick? It is an overview - but what if it WAS a sales pitch?
Yep definitely a sales pitch, but that is his job.
The title literally says overview 🤦♂️😮💨 and I thought some subs were slow when listening to music but this guy just may be slower. I GOT IT!!!! maybe we should install a REL filter board to speed up his brain 🤔😂😂
good marketing.... bad shirt