Stetsom HL 400×4 2 Ohms – Compact Digital 4 Channel Amplifier, 400W RMS 400.4, Full Range, High Input, Bass Boost Gain + 14db (Variable Adjustment 30-75hz), Multichannel, Digital Sound, Crossover

Price: $89.99
(as of Jul 15, 2026 01:25:48 UTC – Details)

Product description

Stetsom 400W Amplifiers

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Price

$89.99$89.99

$73.00$73.00

—

$89.99$89.99

$89.99$89.99

Number of Channels

4

4

4

1

1

Output Power

400W RMS

400W RMS

400W RMS

400W RMS

400W RMS

Minimum impedance Bridge

4 Ohms

4 Ohms

4 Ohms

–

–

Minimum impedance stereo

2 Ohms

2 Ohms

2 Ohms

2 Ohms

2 Ohms

INPUT HIGH auto turn ON 1,5V

✔

✔

✘

✘

✘

THD %

<10%

<10%

<10%

<10%

<10%

Signal to noise ratio S/R

> 90dB

> 90dB

> 90dB

> 90dB

> 90dB

Freq. Response. (-3dB)

5hz to 24Khz

5hz to 30Khz

10hz to 24khz

10Hz to 22KHz

5Hz to 250Hz

Variable Crossover

✔

✔

✘

✘

✘

Supply Voltage

9V to 15V

9V to 15.5V

9V to 15V

9V to 15V

9V to 15V

Dimensions (H x W x L) inches:

2.0” x 4.9” x 4.9”

2.3” x 5” x 6.5”

2.0” x 3.9” x 5.0”

2.0” x 3.9” x 5.0”

2.0” x 3.9” x 5.0”

Weight

1.15 lb

1.4 lb

1.14 lb

1.12 lb

1.11 lb

400w RMS ( 13.8v ) | 420w RMS peak ( 14.4v ) at 2 Ohms
4 channel monoblock amplifier, Mosfet Class D, Full Range stable at 2 Ohms
Audio Controls: Crossover ( HPF & LPF 90Hz for channel 1 & 2 ) + ( Bass boost variable from 30Hz ~ 74Hz +14dB for channel 3 & 4 ) | Flat mode where every ajustments on the amp stay disabled and adjustments are made out of the amp controls
Compact and powerfull cooler for better ventilation and safety long use for hours
Power connectors ( power / ground ) 6mm², Remote connector 0.75mm², Speakers 2.5mm², Fuse 25A ( max 30cm far from the battery )

Product summary

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