About the REL Acoustics Carbon Special Black Label Subwoofer

Product Description

Arriving October 2025.

Please note - optional cloth grille.

Carbon Special Black Label is the pinnacle of Serie S in a medium chassis. Its 12" all-carbon fibre driver, closely related to our No.31 Reference, is backed by a more powerful amplifier and increased cabinet volume for breathtaking dynamics, nuance, and authority. UK orders will begin shipping the week of October 6th.

  • 900-watt Linear Class D Amplifier
  • 12" Carbon Fibre Active Driver with 12” Down-Firing Passive Radiator
  • Precision-Engineered Cabinet and Driver for Power, Speed, and Scale
  • Stereo Pairs, Line Arrays, and Theater Integration
  • Premium Wood Grille Included

What's in the box

  • Carbon Special Black Label Subwoofer
  • 6' AC Power Cord
  • 32' Neutrik Speakon cable
  • Line Array Mounting Hardware
  • Premium Wood Grille
  • User Manual & Warranty Information
  • *The Standard Clothe Grille is NOT included in your subwoofer purchase but is available for purchase

Achingly Beautiful

Carbon Special Black Label pulls together the finest elements of Serie S design. Its cabinet proportions, inspired from our Reference line, achieve a natural sense of scale. Subtle black crown inlays along the sidewalls and curved stainless-steel handles recessed into elliptical returns underscore its unique position within the range. Beneath each rail, knurled billet cylinders permit precise leveling, while thick internal aluminum slabs anchor the handles for safe stacking in Line Arrays. Each unit also includes a premium wood grille that adds warmth while enhancing airflow for greater dynamics. A design where beauty and performance converge.

Driven to Perfection

At REL, development begins with the driver, the foundation of sonic character. For Carbon Special Black Label, we designed a 12" all-carbon fibre unit capable of handling three times the peak power of its predecessor. A newly engineered suspension allows the cone to travel over 60mm front to back, delivering extraordinary dynamics with complete control. The result is bass that is effortless, powerful, and fluid, extending lower with greater authority. Whether reproducing the subtle textures of music at concert levels or the impact of modern theater soundtracks, this latest generation driver transforms performance across the entire medium-chassis class.

Amped Up

Carbon Special Black Label is powered by a 900-watt hybrid amplifier that combines the rich current delivery of Class A/B monoblocks with the efficiency of a Class D output stage. A 15-pound power transformer and extensive heatsinking form the foundation for high-current performance, adding to the model’s weight and commanding authority. This design sustains peaks of 1,250 watts with ease, delivering louder, cleaner, and more controlled bass than any previous medium-chassis REL. The result is an amplifier that unites raw power with the composure and finesse that define Black Label.

Analog Filtered to Perfection:

We choose analog because it is the only way to achieve truly natural sound. All REL input filters are 100% analog—among the fastest ever offered in a subwoofer. At the core is our renowned High Level Input, which connects directly to the speaker outputs of your main amplifier. This doesn’t draw power; instead, it carries the full sonic signature of your system, allowing REL to blend seamlessly with your speakers—a quality reviewers have praised for decades.

For systems where High Level isn’t possible, our low-level input uses the same analog filter circuit, available via both RCA and XLR connections, to deliver the speed, naturalness, and integration REL is known for. And in theater or dual-use systems, REL uniquely allows High Level and .1/LFE to run together—so music benefits from natural integration, while movies deliver the full impact intended by the mix.

Technical Specifications
Type

Front-firing active driver, down-firing passive

Active Driver Size & Material

12 in. (305mm) long-throw, carbon fibre cone with inverted carbon fibre centre cap, die cast alloy chassis

Passive Radiator Size & Material

12 in. (305mm), Carbon/Carbon flat cone structure, steel chassis

Low Frequency Extension

-6 dB at 19Hz

Input Connectors

High Level Neutrik Speakon, Low Level (2) RCA, (1) LFE RCA, (1) LFE XLR

Output Connectors

High Level Neutrik Speakon, (1) Low Level RCA, (1) LFE RCA or (1) LFE XLR

Power Output

900 watts (RMS)

Amplifier Type

Linear Class D

Wireless Capability

REL AirShip Direct (sold separately)

Dual Parametric Filter

N/A

Finish

Piano Black Lacquer 8 coats

Protection System
Fully Electronic Set Safe

Yes

D.C. Fault

Yes

Output Short

Yes

Mains Input Voltage

220-240 volts, 110-120 volts for certain markets

Fuses

8 Amp semi delay 220 volts operation, 15 Amp semi delay 120 volts operation

Supplied Accessories
Mains Lead

Yes

Neutrik Speakon

Yes (10 Meters Nominal)

Interconnect

-

User Manual

Yes

Shipping Information

Thank you for considering Yorkshire AV for your next investment in your AV or HiFi setup.

We are an approved retailer for all brands sold on our website, which means full manufacturers warranty and support as well as detailed product knowledge within our small business.

We use an inventory tracking system which states if item(s) are in stock and if not, what are the likely lead times.

Who do you use for delivery?

Our primary delivery agent is DPD. Where orders are shipped directly from Yorkshire AV, we always use DPD who offer a fabulous service at competitive rates.

If we drop ship (i.e. direct from the supplier) then the delivery agent is out of our control. It is generally DPD or UPS however - we rarely see other carriers used.

Selecting "Next Day" delivery does not mean you'll receive your item the next day in some cases. It's the next day from when the item(s) are in stock with us. If there is an urgent need then please contact a member of staff via the Live Chat or telephone (01757 826111) to check on live stock levels.

Certain product(s) are delayed in manufacturing due to semi-conductor shortages across the Globe. We'll keep you informed as to your order progress and a likely ETA once we get updates from the manufacturers.

Returns

Standard Returns 

Our returns policy lasts for 28 days for all items in our store except those defined in section (1) below.

To be eligible for a refund, your item must be unused/unopened and in the same condition that you received it. It must also be in the original packaging. 

If you return the item to us within 14 days of purchasing, you will be offered a full refund or exchange. If your return comes to us after 14 days of purchasing and is opened, we will refund the full amount less 20%. Unused items returned up to 28 days after purchasing will be fully refunded.

It's the responsibility of the customer to return the items at your cost. Yorkshire AV are able to arrange collection - please contact us for a quote.

You must ensure goods are shipped in their original packaging if they are damaged/not working. Manufacturers will not accept returns and Yorkshire AV can not be held responsible for any damage in transit.

Several types of goods are exempt from being returned.

(1) Examples of non-returnable items: 

  • Gift cards 
  • HiFi Racks
  • Second hand units / clearance products
  • Headphones (due to listener hygiene)
  • Custom cables
  • Special order items (items that we order in for you/were not in stock at the time of order)

To complete your return, we require a receipt or proof of purchase. 
Please do not send your purchase back to the manufacturer. 

Please complete your return via your customer account by clicking here.

There are certain situations where only partial refunds are granted (if applicable). Those are where:

  • Any item not in its original condition, is damaged or missing parts for reasons not due to our error 
  • Any item that is returned more than 28 days after delivery 

There are certain situations where only partial refunds are granted (if applicable). Those are where:

  • Any item not in its original condition, is damaged or missing parts for reasons not due to our error 
  • Where the item wasn't marked with an extended returns policy at the end of the checkout process

Refunds (if applicable) 

Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund. 

Items that have been opened will be listed on our "Clearance" section. We charge a 20% fee from the total item value which will be deducted from any refund amount applicable.

If your returns are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 2-3 days. Costs of shipping will be deducted from any refund amount.

Late or missing refunds (if applicable) 
If you haven’t received a refund yet, first check your bank account again. 
Then contact your credit card company, it may take some time before your refund is officially posted. 

Next contact your bank. There is often some processing time before a refund is posted. 

If you’ve done all of this and you still have not received your refund yet, please contact us at info@yorkshireav.co.uk. 

Sale items (if applicable) 
Only regular priced items may be refunded, unfortunately sale items/clearance products cannot be refunded. 

Exchanges (if applicable) 
We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at info@yorkshireav.co.uk and send your item to: Yorkshire AV LTD, Unit 6 Wood Farm, Doncaster Road, GOOLE, DN14 0JF, United Kingdom. 

Shipping 
To return your product, you should mail your product to: Yorkshire AV LTD, Unit 6 Wood Farm, Doncaster Road, GOOLE, DN14 0JF, United Kingdom 

You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund. 

Please complete your return via your customer account by clicking here.

Warranty

By default, our brands follow their standard manufacturers warranty terms and length.

For extended Warranty (should this be offered with your product), please ensure you complete the Extended Warranty registration form that was emailed to you.

Warranty claims within the warranty period are underpinned by the manufacturer. With any extended warranty claims - Yorkshire AV act as your agent to the authorised repair centre.

Shipping charges are excluded from any warranty claim. Original packaging and receipts must be provided else the claim will be rejected.

For any questions or issues - please contact us directly.

Finance

We’ve got you covered, as we have finance options available for people with varying circumstances. Yorkshire AV believes that you shouldn’t have to pinch your pockets to be able to purchase our products. You can pay in affordable monthly instalments to better suit your needs and budget.

To help you purchase from Yorkshire AV, we have partnered with Kandoo, a regulated credit broker to offer all our customers a range of highly flexible finance options. Kandoo is a comparison service that searches to find you the best Personal Loan option that’s right for you.

You can apply here - then continue your purchase from us.

FAQs

Please read our FAQs page to find out more.

Do you have a real store?

Yes! We have a store set in a quaint location with plenty of parking even for HGV's! We have a dedicated demonstration room for Headphones/portable audio, 2 channel HiFi and one of the most advanced home cinema rooms in the country.

Can I home demonstrate products?

In most cases yes. Simply contact us with your requirements and if it's on the shop floor - we can arrange a home demonstration.

Do you ship from store?

In most cases yes. We have a store front with products such as cables and smaller products physically to hand. We also have a dedicated warehouse a few minutes away with over 1200sq m of products stored. Some products are shipped direct from manufacturers - as it's not practical / cost effective to store every variant of every product. We are very efficient at stock management however.

Can I return a product?

Yes! So long as it's new/unused and in the same condition it was delivered to you, we will gladly refund you up to 14 days from purchase. Please raise a request via your Account area to start the return process.

Do you offer installation?

Absolutely - we have a dedicated, in-house team of installers who travel the UK installing lovely hifi and home cinema solutions. Contact us to discuss pricing.

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