6MR400-4 BULLET
- 6.5″ Midrange – 4 Ohm
- High Performance Bullet
- 95 dB – 400 Watts
$45.91
In stock
PRICE FOR SINGLE UNIT
Features
Features
The MR BULLET was conceived with one goal in mind: High-Performance!
Featuring an Aluminum Phase Plug (Bullet), this mid is built like a professional midrange loudspeaker, but it has been designed for use in the mobile audio market, as we called it Pro Audio On Wheels®!! By combining elements from PRO Audio and Car Audio, we have developed a NEW type of high efficient midrange that is able to give high levels of output for your custom door.

- Built to Perform at Wide Frequency Range: 145 – 12,500 Hz
- High efficiency: 95 dB guarantees High Output Levels
- Handles 400 Watts – Endurance at Loudest Volumes
- Vented Air pole piece for heat dissipation
- Center phase plug for even sound distribution
- 4 Ohm Impedance
- Also available in 8″ – 8MR500-4 BULLET
and 6×9″ – 69MR500-4 BULLET - Compact, Lightweight Neodymium Version Available – 6MR400-NDY-4 BULLET

The “bullet” phase plug is made from pure aluminum acting as a radiator cooling system for the voice coil and machined to perfection for even sound dissipation. Beyond good looks, this cone is extremely light, providing excellent damping to keep an incredibly natural yet accurate sound.
A triple roll cloth surround, combined with an optimized fiber pressed paper cone, ensure the speaker’s frequency response is smooth and extends to high range making an easy transition to a super tweeter, but according to customers, the high-frequency response from this speaker does NOT need support from a tweeter!

The suspension design of this mid range features a single layer spider – which connects to the coil former with premium stitched lead wires, all being driven by a copper-clad aluminum wire voice coil providing high efficiency and excellent power handling.
Its high-performance characteristics and high-quality components provide exceptional clarity, detail, and dynamics sound. You can expect outstanding sound stage quality and realistic sound reproduction for a great value. This is the new standard of value in high-performance bullet speakers.

Built to perform and able to handle 400 Watts of Continuous Program Power (RMS), this midrange is the perfect match on 3-way custom door system such as:
10W1000-NDY-4 + 6MR400-4 BULLET + TW450Ti-ND-4 making the ultimate sound reproduction machine, with unbeatable sound quality and output.
Technical Details
GENERAL SPECIFICATIONS
| Nominal Diameter | 6.5″ (152 mm) |
| Nominal impedance | 4 Ohm |
| Nominal Power Handling* | 200 Watts |
| Continuous Program Power (RMS)** | 400 Watts |
| Max Peak Power*** | 800 Watts |
| Sensitivity 2.83V at 1m | 95 dB |
| Recommended Hi Pass Crossover For Full Power Handling | 145 Hz 12db Per Octave Crossover |
| Frequency Response | 145 – 12,500 Hz |
| Voice Coil Diameter | 1.5″ (38 mm) |
| Voice Coil Wire | CCAW |
| Voice Coil Winding Depth | 9.5 mm |
| Former Material | Kapton |
| Magnetic Gap Depth | 6.0 mm |
| Frame Material | Stamped Steel |

THIELE-SMALL PARAMETERS
| Equivalent Volume | Vas | 4.40 l |
| Excursion (mathematical)*** | Xmax | 3.25 mm |
| Free Air Resonance | Fs | 144.1 Hz |
| Mechanical Factor | Qms | 11.98 |
| Electrical Factor | Qes | 0.64 |
| Total Factor | Qts | 0.60 |
| Cone Area | Sd | 143 cm² |
| Mechanical Mass | Mms | 7.94 g |
| Bl Factor | Bl | 6.37 Tm |
| Dc Resistance | Re | 3.6 Ohm |
| Inductance | Le | 0.136 mH at 1 kHz |
| Mechanical Mass Without Air | Mmd | 6.97 g |
| Mechanical Compliance | Cms | 0.154 mm/N |
***Xmax=(Voice coil winding depth-Magnetic Gap depth)/2+ Magnetic Gap Depth/4
EXTRA INFO
| Overall Diameter | 6.59” (167.5 mm) |
| Front Mount Baffle Cutout | 5.65” (143.5 mm) |
| Mounting Depth | 2.62”(66.5 mm) |
| Overall Depth | 2.99”(73.5 mm) |
| Net Weight | 4.81 Lbs (2.18 kg) |
| Shipping Weight | 5.18 Lbs (2.35 kg) |
| Carton Dimensions W x L x H | 8.50”x 8.50” x 3.35” (175 x 175 x 85 mm) |
63 reviews for 6MR400-4 BULLET
| 5 star | 100% | |
| 4 star | 0% | |
| 3 star | 0% | |
| 2 star | 0% | |
| 1 star | 0% |
Customer Images










6MR400-4 BULLET
Q & A
6MR400-4 BULLET









6MR400-4 BULLET are super loud and clear. They where just small enough to fit in the door and back deck of my 11 accord without modification. They handled the power well. If space is an issue this speaker is for you.
Very loud and very very clear! Got 3 start and just got my other 3 hopefully when I run all 6 they’ll be perfectly clear and really loud!!
Great speaker and good quality
My cousin put me on to this brand bought 4 of them when they were on the weekly special and for the price and sound they were worth it
Only brought 2 of the 6MR400 and they are loud just like DS18 or apocalypse
They sound good and super loud and clear. For the price they cannot be beat. They Ight
Love them
Great sounding speaker is truly a good sounding
speaker would highly recommend to anyone..
Was very impressed with my order and the way they packaged the order without damage..will.be shopping again.
Man these are amazing, running off factory right now , but have a 5 channel Jp95 going to them soon.