Audio Code AXC ZR04 4" Bullet Midrange Loudspeaker
Description
Description
The Audio Code AXC ZR04 4" Bullet Midrange Loudspeaker delivers 100W RMS / 200W peak power at 4 ohms with an 89.6dB sensitivity rating, an integrated bullet center phase plug, and a frequency response spanning 260Hz to 11.5kHz — a compact, high-output midrange driver engineered for active multi-way systems, competition SPL builds, and custom installations where a larger midrange driver simply won't fit. Sold individually. The ZR04 brings ZRO series bullet midrange engineering to the 4" format, delivering focused midrange reproduction in the smallest driver size in the Audio Code midrange lineup.
The AXC ZR04 is a dedicated 4" midrange loudspeaker, not a coaxial — it is designed to be crossed over and used as part of an active or passive multi-way system alongside a subwoofer and tweeter. The integrated bullet center phase plug controls the dispersion pattern of the midrange frequencies, reducing off-axis coloration and improving on-axis clarity and focus — a design feature common in competition SPL and high-output car audio builds. The compact 4" format fits custom dash pods, kick panels, A-pillar pods, and tight OEM locations where a 5.25" or 6.5" driver won't fit — making the ZR04 a practical midrange solution for a wide range of vehicle platforms and custom build configurations. At 89.6dB sensitivity (1W/1m), the ZR04 delivers solid output from modest amplifier power. The 260Hz–11.5kHz frequency response is focused on the core midrange band — the ZR04 starts higher than larger ZRO series drivers (260Hz vs 100Hz for the ZRO 6), making it ideal for 3-way active systems with a higher subwoofer crossover point. Sold individually — order two for a stereo pair.
Use the ZR04 as the midrange driver in an active 3-way system: cross it over with a high-pass filter at 260–300Hz (to protect it from bass frequencies) and a low-pass filter at 4–6kHz (to hand off to a tweeter). The compact 4" format is particularly well-suited for custom dash pods, kick panels, and A-pillar locations. Drive with a dedicated amplifier channel rated 50–100W RMS at 4 ohms. Contact us at Trinity Car Audio for system design guidance.
Why Choose the Audio Code AXC ZR04?
- Integrated Bullet Center Phase Plug: Controls midrange dispersion for improved on-axis clarity and focus — a competition SPL and high-output build design feature in the smallest ZRO series format.
- 4" Compact Format: Fits custom dash pods, kick panels, A-pillar pods, and tight OEM locations where a 5.25" or 6.5" driver won't — the most versatile midrange mounting option in the Audio Code lineup.
- 89.6dB Sensitivity (1W/1m): Solid output efficiency — delivers strong midrange presence from modest amplifier power.
- 100W RMS / 200W Peak Power Handling: Built for active system builds without thermal compression at rated power.
- 260Hz – 11.5kHz Frequency Response: Focused core midrange bandwidth — ideal for 3-way active systems with a higher subwoofer crossover point.
- 4-Ohm Impedance: Compatible with virtually any amplifier channel — no special impedance matching required.
- Audio Xtreme Code Build Quality: Rugged construction for reliable daily and competition performance in custom and OEM locations.
System Integration Recommendations
The AXC ZR04 is a dedicated midrange driver — it must be used with an active or passive crossover. In an active 3-way system: set a high-pass crossover at 260–300Hz to protect the driver from bass frequencies, and a low-pass crossover at 4–6kHz to hand off to a tweeter. Drive with a dedicated amplifier channel rated 50–100W RMS at 4 ohms. The compact 4" format is particularly well-suited for custom dash pods, kick panels, and A-pillar locations. A DSP amplifier with active crossover capability (such as the JBL DSP4086) is the ideal signal processing solution. Sold individually — order two for a stereo pair.
Full Specifications
| Specification | Value |
|---|---|
| Brand | Audio Code (Audio Xtreme Code) |
| Model | AXC ZR04 |
| Type | Midrange Loudspeaker |
| Nominal Diameter | 4" |
| Phase Plug | Integrated Bullet Center |
| Power Handling (RMS) | 100W |
| Power Handling (Peak) | 200W |
| Sensitivity (1W/1m) | 89.6dB |
| Frequency Response | 260Hz – 11.5kHz |
| Nominal Impedance | 4 ohms |
| Package Quantity | Single (1 speaker) |
Frequently Asked Questions
Q: Is the AXC ZR04 sold as a pair or individually?
A: The AXC ZR04 is sold individually — one speaker per order. Order two for a stereo pair.
Q: How does the ZR04 compare to the AXC ZRO 6?
A: Both are Audio Code ZRO series bullet midrange loudspeakers at 4 ohms. The ZR04 is a 4" driver at 100W RMS with 89.6dB sensitivity and 260Hz–11.5kHz response — compact format for tight locations. The ZRO 6 is a 6.5" driver at 250W RMS with 96dB sensitivity and 100Hz–12kHz response — more power, more sensitivity, and lower frequency extension. Choose the ZR04 for compact mounting locations; choose the ZRO 6 for maximum output and lower crossover capability.
Q: Do I need a crossover for the AXC ZR04?
A: Yes — the ZR04 is a dedicated midrange driver and must be used with an active or passive crossover. Set a high-pass filter at 260–300Hz and a low-pass filter at 4–6kHz. A DSP amplifier with active crossover capability is the ideal solution.
Q: Where can I mount the ZR04 in my vehicle?
A: The compact 4" format fits custom dash pods, kick panels, A-pillar pods, and tight OEM locations where a 5.25" or 6.5" driver won't fit. Contact us at Trinity Car Audio for mounting guidance specific to your vehicle and build.
