RCF Subwoofer Demo
Datarhyme spent an afternoon with RCF at a major distributor’s HQ comparing 3 RCF mid-range 18in subwoofers. We tested the RCF 4PRO 8003-AS, SUB 8003-AS-II and SUB 8004-AS, along with a single RCF TT22-A providing the high frequency output.
Note – This was a listening demo. No readings or calculations taken.
RCF 4PRO 8003-AS
Third generation 4PRO 8000 series subwoofer with the 8001 and 8002 models before it, known as a solid performing subwoofer. It has a digital amplifier and DSP with analogue controls. This model has now been replaced by the RCF SUB 8003-AS II.
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Demo Rating
- Good output with decent bass
- Low frequency output down to about 40hz
- Solid bass but lacked deepness
- Clip/limiter light flickered on and off
RCF SUB 8003-AS II
Second generation 8003 subwoofer with updated components, in particular the DSP with digital controls.
Cost on the Thomann website: £1300
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Demo Rating
- Good output with excellent low bass
- Low frequency output down to about 35hz
- Extremely low bass output can be achieved by setting the DSP. However, this may limits the available headroom.
- Clip/limiter light flickered on and off
- Excellent DSP controls – Delay, Xover and Cardioid presets
- Noticeably louder than the RCF 4PRO 8003-AS, but hard to say by how much.
RCF SUB 8004-AS
Launched as the accompanying subwoofer for the RCF HDL line array series. It has a high output digital amplifier and configurable DSP with analogue controls.
Cost on the Thomann website: £2000
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Demo Rating
- Excellent output with extremely low bass levels
- Low frequency output down to about 30hz
- Nice deep smooth bass with a very clean sound.
- There didn’t appear to be much difference when deep punch was enabled.
- Lots of headroom – Clip/limiter light never came on
- Noticeably louder than the RCF 4PRO 8003-AS, but hard to say by how much.
Overall Results
The SUB 8003-AS-II is the stand out winner based on sound quality, functionally and cost. The SUB 8004-AS is the best sounding, but with the £700 premium, that was expected.
4PRO 8003-AS
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SUB 8003-AS-II
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SUB 8004-AS
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New Sub RCF Coming Soon
RCF have released a new SUB 9004-AS with the same DSP with digital controls as the SUB 8003-AS II. However, this model isn’t available yet. It’s aimed at the high-end market and will be priced accordingly
18in Subwoofer DemoRCF 4Pro 8003 ASRCF SUB 8003 AS IIRCF SUB 8004 AS
Good comparison.
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