4x Pro Audio Full Range Bullet Speakers PRO-X6.4BM + 4 Channel Korean Amplifier

• The PRO-X6.4BM 6.5" Midrange Loudspeaker has a sensitivity of 94 dB
• 4 Channel EXL-P800X4 has Remote Bass Knob and Latest SMC and MOSFET Technology
• The PRO-X6.4BM 6.5" Midrange Loudspeaker has voice coil diameter of 1.5 inches

4x Pro Audio Full Range Bullet Speakers PRO-X6.4BM + 4 Channel Korean Amp 

This listing includes:

• (4) DS18 6.5" PRO-X6.4BM 300W Mid-Range Loudspeakers


• (1) DS18 GEN-X2000.4 4 Channel Amplifier

With a combination like this, you will have loudspeakers that deliver a concert-like audio experience without any distortion and a Gen-X series AMP that is durable and provides maximum wattage for your budget.

Features per item in this combo:

• The PRO-X6.4BM 6.5" Midrange Loudspeaker has a sensitivity of 94 dB


• 4 Channel EXL-P800X4 has Remote Bass Knob and Latest SMC and MOSFET Technology


• The PRO-X6.4BM 6.5" Midrange Loudspeaker has voice coil diameter of 1.5 inches

6.5" Midrange Loudspeaker PRO-X6.4BM:

• Nominal Diameter: 6.5"


• Nominal Impedance: 4 Ohm


• MAX Power Handling: 500 Watts


• RMS Power Handling: 250 Watts


• Sensitivity (1w/1m): 94 dB


• Frequency Response: 125Hz ~ 12KHz


• Recommended HI Pass Crossover: 120Hz


• Voice Coil Diameter: 1.5"


• Voice Coil Former Material: Kapton


• Winding Material: CCAW


• Cone Material: Non-press Paper


• Surround Material: Cloth Edge


• Basket Material: Steel


• Magnet Material: Ferrite


• Equivalent Volume: Vas - 3.810L


• Excursion: X-max - 8.2mm


• Free Air Resonance: Fs - 106Hz


• Mechanical Factor: Qms - 8.027


• Electrical Factor: Qes - 0.471


• Total Factor: Qts - 0.445


• Dc Resistance: Re - 3.2 Ohm

DS18 4 Channel Korean Amplifier Class A/B Full Range w/ Bass Knob EXL-P800X4:

• RMS Power @ 4 Ohm: 150W x 4CH


• RMS Power @ 2 Ohm:  200W x 4CH


• RMS Power @ 4 Ohm Bridge :  400W x 2CH


• Frequency Response: 20Hz-20KHz


• Signal/Noise Ratio: Greater than 98dB


• Efficiency @4 Ohm:  Greater than 63%


• Damping Factor: 140


• THD%: Greater than 0.10%


• Low Level Input Range: 200MV-6V


• Selectable X-Over: Yes, HPF/FULL/LPF


• X-Over Filter Range: 50Hz-2KHz


• Bass Boost Range: 0-+9dB


• Bass Boost Frequency: 30Hz-60Hz


• Infrasonic Filter: No


• Phase Selector:  0-180


• Class: AB (Analog)


• Amplifier Type: Stereo Full - Range


• Channels: 4 CH


• Minimum Impedance: 2 Ohm/CH (4 Ohm Bridge)


• Led Indicator: PWR / CLIP / PROTECT


• Power Input Size: 4 AWG


• Fuse Rating: 120A


• Remote Level Control: Yes - Dash Mount


• Cooling Fan: Yes


• Thermal Protection: Yes > 97C / 206F


• Over-Load Protection: Yes


• Dc Output Protection: Yes


• Short Circuit Output Protection: Yes


• Voltage Input Protection: Yes, greater than 15.5V


• Clipping Protection: Yes


• Body Color/Finish: Black Aluminum

Recommendation(s) per item in this combo:

DS18 6.5" Loudspeaker PRO-X6.4BM per speaker:

• Recommended HI Pass Crossover: 120Hz

Item Dimensions per item in this combo:

6.5 PRO-X6.4BM Mid-Range Speakers:

• Overall Diameter: 6.61 inches


• Front Mount Baffle Cutout: 5.7 inches


• Mounting Depth: 2.44 inches


• Overall Depth: 2.72 inches


• Magnet Weight: 30 oz


• Weight: 6 lb

DS18 4 Channel Korean Amplifier Class A/B Full Range w/ Bass Knob EXL-P800X4:

• Length: 11.5 inches


• Width: 8.77 inches


• Height: 2.67 inches


• Heatsink Length: 9.84 inches

Accepted Payment Methods at Big Jeff Audio

At Big Jeff Audio, we strive to make your shopping experience as smooth as possible by offering a wide variety of payment options. Below is a complete list of the payment methods we accept:

Credit and Debit Cards

• Visa
• Mastercard
• American Express
• Discover
• Diners Club

Digital Wallets

• Amazon Pay
• Apple Pay
• Meta Pay (formerly Facebook Pay)
• Google Pay
• Shop Pay
• PayPal

International Payment Methods

• Bancontact
• iDEAL

Bank Transfers

• Zelle

Financing Options

We also offer financing options to make purchasing easier. Learn more about our financing options here.

• Klarna
• Affirm
• Sezzle
• Snap
• Acima
• Tiptop

If you have any questions or need assistance with payments, feel free to reach out to us at info@bigjeffaudio.com or call us at 737-BIG-JEFF.

Shipping Options and Delivery Time

Do You Offer Expedited Shipping?

Yes! At checkout, you can select from different shipping options:

• Standard Shipping: Free for orders over $100.
• Expedited Shipping: Available at an additional cost, calculated based on the weight and destination of your order.

How Long Does Delivery Take?

• Handling Time: Most orders are processed and shipped within 1 business day after receiving cleared payment. Occasionally, additional handling time may be required, but we’ll notify you if that’s the case.
• Standard Shipping: Typically takes 3-5 business days, though delivery may be affected by extreme weather or holidays.

What Happens If My Package Is Undeliverable?

If your package is refused or marked undeliverable and returned to us by the carrier, you’ll need to pay the full shipping cost to have the package resent. Alternatively, we can refund your order, minus the cost of shipping.

Why Can’t I Track My Order?

If you're having trouble tracking your order:

• Make sure you’ve received the shipping confirmation email with the tracking number.
• Log into your account on our website and use the “Check Your Order Status” button.
• If the issue persists, please refer to our detailed guide on tracking your order or contact our customer service team for further assistance.