DS18 PRO-X6.4BM 6.5″ Midrange Loudspeaker with Bullet, 4-Ohm
Pro-audio 6.5-inch midrange rated 250 W RMS with aluminum bullet
$54.95
Overview
The DS18 PRO-X6.4BM is a 6.5-inch pro-audio midrange loudspeaker with a red aluminum bullet and a red steel basket. It is rated 250 watts RMS and 500 watts max at 4 ohms, with a 1.5-inch voice coil and a 30 oz ferrite magnet. It is sold as a single speaker. DS18 recommends a 140 Hz high-pass crossover, so pair it with an amplifier and a separate tweeter for full-range sound.
Product details
Built for loud midrange
The PRO-X6.4BM is a dedicated midrange driver for systems that need strong vocal and instrument output. DS18’s specifications list 95 dB sensitivity (1 W/1 m) and a 100 Hz to 10 kHz response, with a 140 Hz high-pass crossover recommended to keep deep bass off the cone.
Construction
A non-pressed paper cone with a cloth surround is driven by a 1.5-inch voice coil on a Kapton former with CCAW winding. The steel basket and aluminum bullet both carry a glossy red finish, and the ferrite magnet weighs 30 oz. Listed parameters include Fs of 180 Hz, Qts of 0.6, and 8.2 mm Xmax.
Fit and system planning
Mounting depth is 2.58 inches with a 5.7-inch front-mount cutout and 6.57-inch overall diameter. Because it is a midrange, plan on a tweeter for the top end, such as DS18’s super bullet tweeters, and an amplifier sized for 250 watts RMS per speaker.
Before you order
Since the PRO-X6.4BM is sold one per box, order two for a left and right pair. Check that the 2.58-inch mounting depth clears the window glass and door structure, and plan for speaker adapters or wiring harnesses if your vehicle needs them. Set the amplifier’s high-pass filter near 140 Hz as a starting point and leave low bass to a subwoofer.
Key features
- 6.5-inch pro-audio midrange loudspeaker with aluminum bullet
- 250 watts RMS and 500 watts max power handling at 4 ohms
- 1.5-inch voice coil on a Kapton former
- Non-pressed paper cone with cloth surround
- Red steel basket with 30 oz ferrite magnet
- 2.58-inch mounting depth and 5.7-inch cutout
- Sold as a single speaker
Specifications
| Weight | 5.14 lbs |
|---|---|
| Dimensions | 7.25 × 7.25 × 3.25 in |
| Speaker Type | Midrange |
| Size | 6.5 inch |
| Brand | DS18 |
| Model | PRO-X6.4BM |
| SKU | PROX64BM |
| UPC | 663593058232 |
| Product type | 6.5" midrange loudspeaker |
| Nominal diameter | 6.5" (165 mm) |
| Impedance | 4 ohms |
| RMS power handling | 250 W |
| Max power handling | 500 W |
| Sensitivity (1 W/1 m) | 95 dB |
| Frequency response | 100 Hz to 10 kHz |
| Recommended high-pass crossover | 140 Hz |
| Sold as | Single |
| Voice coil | 1.5" (38.6 mm), Kapton former, CCAW |
| Cone | Non-pressed paper |
| Surround | Cloth |
| Bullet | Aluminum, glossy red |
| Basket | Steel, glossy red |
| Magnet | Ferrite, 30 oz |
| Fs | 180 Hz |
| Qts | 0.6 |
| Xmax | 8.2 mm |
| Vas | 2.64 L (0.093 cu. ft.) |
| Overall diameter | 6.57" (167 mm) |
| Front-mount cutout | 5.7" (145 mm) |
| Mounting depth | 2.58" (65.5 mm) |
Important notes
- Sold individually; order two for a left and right pair.
- Midrange only: add tweeters for high frequencies.
- DS18 recommends a 140 Hz high-pass crossover and an external amplifier.
- Confirm mounting depth and cutout in your vehicle; adapters are sold separately.
What's in the box
- DS18 PRO-X6.4BM speaker (1)





