B2 Audio M15R – The RAVEN 15,000wrms

Code: M15R

Tipping the scales at 15kw with THE RAVEN!


Only 1 left in stock (can be backordered)

Only 1 left in stock (can be backordered)




The one to follow might be a bold statement for the M15R, but this amplifier is the first of a new breed.
With Quad oversized 0 GA positive and negative power inputs, the Raven demands power to make power.
Each cable fused at 300 A, an impressive 1200 Ampere of current is what is expected to make this monolith come alive.

Several years of R & D with the predecessors of the M series amps has been incorporated into the M15R.
The power output is of course the culmination of such, but all the small steps of getting there is what makes the Raven stand out.

The unique heatsink design made exclusively for this amplifier is not only cosmetical, but it offers even better heat dispersion compared to any M series amplifiers.
Even though it is only 2 cm / .8″ wider, the pcb is actually 20% wider than the M1u / M12R. Not only does this offer bigger and wider copper traces which is essential for more power,
but we also incorporated the Quad inputs, that are mirrored, so each side reflects the other.
Compact power

To ensure we didn’t go full surfboard length, we wanted to make the Raven as compact as possible for a traditional Class D design.
This can also be seen in the power supply section, here we have chosen 6 XXL sized transformers, instead of opting for several small.
Wouldn’t that lower the power, you might think? The nearly 50% larger German made ferrite core used in our amplifier, overshawdows the ones commonly used in comparative designs.

Carrying on our philisophy of not only high power, but increased capacitance to store it, this amplifier offers the largest capacitor bank of its kind on the output side.
The core benefit is that this amp is made for music, where you need a power reserve for it to be dynamic. Not as many common high power designs, nearly only made for a single tone burp.
The voltage

To keep your voltage in check, we have assigned an AVD port (Amplifier Voltage Display). The RJ 45 socket in the AVD will connect to our voltmeter and display the actual voltage of the amp. Not just the batteries supplying it. We do also offer a bluetooth version of the voltmeter with a voltage log that is stored in your IOS or Android device.

The Raven pays tribute to both Norse mythology, the Danish Vikings and the first Danish flag that fell from the sky in the sucessfull battle in the Baltics back in the 13th century.
It is therefore with pride that we have presented the M15R as the Raven, the one to follow.

Product Manual

Specification 12V <1% THD 14.4V <1% THD 16v <1% THD
Power @ 4 Ω: 1 x 3000 w 1 x 4200 w 1 x 5000 w
Power @ 2 Ω: 1 x 5000 w 1 x 7500 w 1 x 8500 w
Power @ 1 Ω: 1 x 8000 w 1 x 11500 w 1 x 15000 w
Frequency Response: 15 Hz ~ 250 Hz
Signal to Noise Ratio: 90 dB
Input Sensitivity: 6 ~ 0.2 V
Crossover: 24 dB / Oct
Low Pass Filter: 30 Hz ~ 250 Hz
Subsonic Filter: 10 Hz ~ 50 Hz
Bass Boost: 0 ~ 9 dB
Bass Boost Frequency: 45 Hz
Phase: 0 ~ 180°
Damping Factor: 400<
Power Terminal gauge: 0 GA x 4
Fuse Rating: 1200 A
Operational voltage: 9 V ~ 16 V
Dimensions: 36.2″ x 12.59″ x 2.71″ (92 x 32 x 6.9 cm)

*In order to get the full power output of the amplifier, it is crucial that your electical system is correctly (over) dimensioned. Failure to upgrading will constrain the power output & lower the efficiency which can cause damage to the amplifier & void the warranty, this also includes ohm loads below of what is written in the manual. Do take your time and read the manual thoroughly before installing!


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Additional information

Weight 20 kg
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UK Delivery

All items ordered before 14.00pm are shipped the same day unless otherwise stated at the time of ordering. Orders placed after 14.00pm on a Friday will be shipped the following Monday (excluding bank holidays, in which case it will be the next working day). If the item is out of stock for whatever reason you will be emailed within 24hrs to inform you of this. Our site manages stock inventory so if it says ‘IN STOCK’ that means goods are available for immediate dispatch.

  • Shipping will be calculated at the checkout.
  • Free shipping available for customers in the UK mainland ONLY when orders are over £50.
  • We use Interlink Express for all UK next day deliveries (aswell as for orders over £50 if the weight exceeds 2kg) and Royal Mail Recorded Post for orders under 2kg.

Make sure you supply us with a mobile number when you order, then we can give you full tracking information & updates on your order throughout the process.

Clicking on the above image, will also allow you to track your order online. If you have any questions or queries, contact our helpful office team on sales@bladeice.com

Free Delivery

Free delivery is available to UK mainland addresses  ONLY and excludes addresses in the Scottish Highlands & Islands and Northern Ireland. Free delivery is applicable to orders over £50.00 (inc vat) ONLY. This offer doesn’t necessarily mean your goods will be sent on a courier next day service. However assuming the weight exceeds 2kg your goods are usually sent via courier (Interlink Express).

Guranteed 24 Hour

  • Next Day Delivery – Over £50 Inc. VAT – Any weight – Free!
  • Next Day Delivery – 2-5KG – £8.00
  • Next Day Delivery – 5-20KG – £9.99
  • Next Day Delivery – 20-30KG – £11.99
  • Next Day Delivery – 30-40KG – £15.00
  • Next Day Delivery – 45KG+ – £50.00


  • Royal Mail 1st Class Recorded 1-3 working days – Upto 1KG – £4.45
  • Royal Mail 1st Class Recorded 1-3 working days – Upto 1-2KG – £6.90
  • Royal Mail 2nd Class Recorded 2-5 working days – 0-2KG – £3.95


  • Royal Mail Special Delivery Saturday – Upto 2KG – £14.00
  • Courier Saturday – Upto 5KG – £15.95
  • Courier Saturday – 5-20KG – £19.95
  • Courier Saturday – 20-25KG – £22.95

Orders MUST be made before 2pm Friday

Back Order

Items that are listed with ‘Back order’ usually means there is around a 5-10 working day delay for the item to be back in stock. Some items are listed in this way as they are a low volume product and are considered special order with our suppliers.

European & International Delivery

Blade ICE ships internationally to many countries in Europe. Based on the weight of your order shipping will be calculated at the checkout.

Blade ICE reserves the right to charge the full shipping fee applicable to resend if the item is returned to us as the customer was unable to take delivery of the parcel for any reason. Courier returned items will be added back into our stock and your account credited with the order total, minus the fee the courier charges us to deliver the item back to us. You will have to re-place the order to have the item reshipped. If a customer inputs any incorrect details on their order, which causes the parcel to be delivered incorrectly, we will not hold any responsibility for this parcel.

Finally we advise you to check the contents of the order with the inventory sent with the goods. In the rare instance that goods are missing, please contact us within 24 hours and we will happily send out the missing goods at no extra cost to you. If goods are damaged or faulty please inform us within 3 working days of receiving your order.

Please refer to our Terms and Conditions for more information.