Crescendo Audio

Crescendo Audio BassClef-4k 4000W Car Amplifier

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  • $849.99
  • Regular price $1,249.99
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The current Bass Clef series has had a hell of a run since 2011, but with all good things, it is time to raise the bar once again.

All new BC amplifiers utilize a newly tooled Crescendo heatsink and revamped circuit boards that stay true to our standards, with even higher power-per-square inch and resilience than before.

Stable down to .5 ohm on sufficient electrical.
Up to 19v capable.
Newly designed, custom tooled, proprietary Multi-piece Thermal optimized Heatsink with patent pending interlocking slide-out CNC engraved top plate.
2 stage copper anodized Top Plate that is easily removable for those who want to color match to their show quality installs.
Silver plated & hard-wired Tiffany RCA inputs
2 sets of oversized 1/0 Power/Ground Inputs for efficient current transfer.
Dual 4 gauge Speaker output terminals! Which each terminal containing two outputs contains the same polarity for extreme ease of use! ( + + ) & (- -)

Overbuilt Power supply with heavy copper traces and Military spec PCB/heavy duty standoffs for extreme vibration resistance.
Handwound heavy duty transformers & inductors to insure no shorting of the windings from escessive vibration.

Manufactured using some of the highest quality and most reliable electrical components, with many 3% tolerance components throughout.
Full 4-Stage Intelligent protection Circuitry
1 Year/1ohm comprehensive warranty with 2 year/.5ohm optional extended warranty available.

Power Ratings (clean power RMS @13.8v)
1ohm: 4000w
2ohm: 2000w
4ohm:1200w

Certified Amp Dyno results (on electrical consisting of Mechman 370a alternator, 8 HPL75 AGM batteries, 3 runs of Crescendo 1/0 OFC cable runs Front to back)
.5ohm: 5710w @13.1v
1ohm: 4416w @ 13.3v
2ohm: 2529w @ 13.4v



Dimensions: 23 3/4" x 9 1/8" x 2 7/8"
(25" length from tip of terminal block to RCA tip)