Short answer: choose between the Martin Audio CDD8 and Audiofocus VENU 8a for the deployment, not from the automatic ranking alone. Their driver format, power requirements, coverage, bass reach, output capability, and control features determine which is the more practical PA for a particular room or system.
The case for the Martin Audio CDD8. Medium-quality vendor data shows a 3.4 ideal-subwoofer preference score. The coaxial Differential Dispersion driver gives point-source summation of the LF and HF sections for consistent coverage, and the ultra-compact enclosure mounts horizontally or vertically for on-wall installation use.
The case for the Audiofocus VENU 8a. A wide 80° x 80° horn and 134dB claimed peak give it unusually broad, symmetric coverage and high maximum output for stage use, and its 25.4 lbs (11.5 kg) weight is manageable for a touring box.
Important trade-offs. Being passive, it needs an external amplifier and crossover, and its compact on-wall design targets installed foreground music over full PA main duty. Low-quality vendor data shows a 1.68 ideal-subwoofer preference score with bass extension only to roughly 106Hz, the weakest measured result of any speaker in this family of rankings; this cabinet is voiced as a subwoofer-dependent top rather than a stand-alone full-range box.
Buy the Martin Audio CDD8 when its stated format, coverage, and system features fit the job better.
Buy the Audiofocus VENU 8a when its stated output, control, and deployment strengths better match the system.
Still deciding? The full PA & Live Sound rankings cover every ranked option.
An ultra compact passive 8 inch coaxial speaker for on wall installations with consistent coverage.
A powered 8 inch stage speaker with very wide, even coverage and high peak output, meant to sit above a subwoofer.
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Specifications Side By Side
| Martin Audio CDD8 | Audiofocus VENU 8a | |
|---|---|---|
| Price | $960 Passive | $2,100 |
| Ranked | #33 of 47 in 8-Inch PA Speakers | #46 of 47 in 8-Inch PA Speakers |
| Passive | Yes | No |
| Configuration | Passive 2-way coaxial PA speaker | Active 2-way full-range PA speaker |
| Drivers | 8” coaxial woofer, 1” exit compression driver | 8” woofer, 1” compression driver |
| Frequency Response | 70Hz - 20kHz (±3dB, manufacturer specified); 55Hz (-10dB) | 55Hz - 20kHz (-6dB, manufacturer specified) |
| Dimensions | 16.1”H x 10.1”W x 9.9”D (410 x 256 x 252 mm) | 16.9”H x 10.7”W x 11.5”D (430 x 273 x 291 mm) |
| Inputs | Low-profile 13A push-lock input and link | Three-pin XLR input and link output |
| Amplifier Power | Passive speaker; use external amplification within the 200W AES / 800W peak handling rating | 430W AES / 1,720W peak (350W LF + 80W HF AES, manufacturer specified) |
| Power Handling | 200W AES / 800W peak (manufacturer specified) | - |
| Crossover Frequency | 2.3kHz passive | - |
| Cabinet Material | Composite material | High-grade birch plywood with polyurea coating |
| Rigging | Six M6 inserts for wall/ceiling brackets | Adjustable pole mount and M8 threaded inserts |
| Bass Extension (-3dB) | 128Hz (measured, vendor Spinorama data) | 112Hz (measured, vendor Spinorama data) |
| Bluetooth | No | No |
| Spinorama Preference Score | 1.11 | -2.04 |
| Spinorama Preference Score with Perfect Sub | 4.14 | 1.68 |
| XLR Input | No | Yes |
| RCA Input | No | No |
| TRS Input | No | No |
| Optical Input | No | No |
| Coaxial Input | No | No |
| USB Input | No | No |
| HDMI Input | No | No |
| AES Input | No | No |
| Aux Input | No | No |
| Microphone Input | No | No |
| Guitar Input | No | No |
| Maximum SPL | 123dB peak / 117dB continuous | 134dB peak (manufacturer specified) |
| Coverage | 80-110° horizontal (user-rotatable), 60° vertical | 80° x 80° |
| DSP | No (passive; used with a DX-series controller or MA Series amplifier for EQ and limiter presets) | Yes |
| Weight | 20.9 lbs (9.5 kg) | 25.4 lbs (11.5 kg) |
Frequency Response Compared
Both speakers’ spinorama measurements, overlaid. A flatter line is more neutral: peaks sound forward or harsh, dips sound recessed. Each curve is shifted so its average from 300 Hz to 3 kHz sits at 0 dB, so loudness differences between the two are removed and only the shape is compared.
Measurement data: Martin Audio CDD8 (measured by the manufacturer) and Audiofocus VENU 8a (measured by the manufacturer), via spinorama.org.
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