CX3500.1 ClassD 3500Wx1CH Product

Main Features:

Model:CX3500 3500Wx1CH

Output circuitry:Class D

Output power(RMS,≤1% THD + N@0.5 ohms):3500W

Output power(RMS,≤1% THD + N@1 ohms):2200W

Output power(RMS,≤1% THD + N@2 ohms):1400W

Output power(RMS,≤1% THD + N@4 ohms):800W

Signal-to-noise (@ 1W): >90dB

Maximum power:3500W

Signal Inputs:RCA

Distortion (SMPTE-IM):NA

Amplifier Protection:YES

Input Sensitivity :0.2V-5V

Dimensions (L x W x H):53x228x566mm

TEST REPORT:

Features:

3500W RMS Class-D amplifier.

0.5 ohm load stable.

Double Side PCB and SMD components.

Adjustable Input level, LPF, Subsonic, bass boost function, Q control.

Advanced short circuit, overload, over heat, over and low voltage protection.

Advanced clip limit / thermal power limit function.

Easy bridgeable with same amplifier.

Optional remote controller.

3 Detailed specs:

3.1 Test Condition.

All the specs were tested with following condition unless noted.

1. Power supply: 14.4V DC power supply

2. Test signal: 80Hz sine wave.

3. Loads: Resistor dummy load.

4. Environment: 25 degree C, open air.

5. Relative humidity: 70%.

6. Instrument: Audio Precision SYS-2322A.

3.2 Output power performance

Following table is the RMS output power with THD+N(<22KHz) value at 5%, 3%, 2% and 1%.

Power THD+N	RMS power (0.5ohm)	RMS power (1ohm)	RMS power(2ohm)	RMS power(4ohm)
5%	3380W	2350W	1380W	750W
3%	3300W	2250W	1330W	720W
2%	3180W	2150W	1300W	700W
1%	3180W（2%）	1900W	1150W	550W

Table 1Output Power with THD+N

Following chart shows the output power with THD+N curve at 4ohm, 2ohm loads, 1ohm loads and 0.5ohm loads.

Chart1. RMS output power @4ohm with THD+N

Chart2. RMS output power @2ohm with THD+N

Chart3. RMS output power @1ohm with THD+N

Chart4. RMS power @0.5ohm with THD+N

3.3 Frequency Response

1. -3dB frequency response: 14Hz~220Hz.
2. -1dB frequency response: 18Hz~170Hz.

3.4 LPF & Subsonic Filter features

LPF adjustable from 55Hz~225Hz with 24dB/Oct slope.
Subsonic Filter adjustable from 15Hz~52with 24dB/Oct slope.

Chart 1.LPF response

Chart 2.Subsonic Filter response

3.5 Bass Boost Feature

Bass boost center frequency adjustable from 32Hz~90Hz, level adjustable from 0~12dB.

Chart 3.Bass boost frequency adjust(bass boost level set @ 12dB)

Chart 4.Bass boost level adjust (bass boost frequency set at 48Hz)

3.6 Bass boost Q control

1.1THD+N

THD+N=0.10% @ 20W output power with 4ohm load.

1.2Input level

0.2V~5V

1.3Signal and Noise Ratio

>75dB

1.4Protect Function

1. Overload:

Protect less than 0.44 Ohm loads at full scale output power.

2. Short Circuit:

Full rated power short circuit protect test: passed.
Full rated power long last short circuit test: 10 minutes passed.

3. Over temperature:

Limit output power while inner temperature reach 75 degree C, protect while inner temperature reach 85 degree C.

4. Low voltage:

Protect while power supply voltage lower than 8.6V.

5. over voltage:

Protect while power supply voltage over 16.5V.

6. Power limit / Clip limit.

Clip limit while THD+N≥1%.
Power limit while inner temperature over 75 degree C.

1.5Idle current and Efficiency:

Idle current: 1.90A
Efficiency: 88% when THD+N=1% at 4 ohm.

1.6Dimension

This amplifier’s size is at 228mmX502mmX52mm(W,L,H).