Best car audio mono amplifier:X3500 test report

Issuing time:2020-01-06 21:05

1     Model number: class D X3500.1D

Budget less than $150 per pcs.

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.

Detailed specs:

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.

1.
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
Output 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

1.
Frequency Response

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

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


1.
LPF & Subsonic Filter features

7
LPF adjustable from 55Hz~225Hz with 24dB/Oct slope.

8
Subsonic Filter adjustable from 15Hz~52with 24dB/Oct slope.


Chart 1
LPF response


Chart 2
Subsonic Filter response

1.
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)

1.
Bass boost Q control




1.
THD+N

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

1.
Input level

0.2V~5V

1.
Signal and Noise Ratio

>75dB

1.
Protect 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.
Idle current and Efficiency:

9
Idle current: 1.90A

10
Efficiency:   88% when THD+N=1% at 4 ohm.

1.
Dimension

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


2     Features:

Ÿ   3500W RMS Class-D amplifier.

Ÿ   0.5 ohm load stable.

Ÿ   Double Side PCB and SMD components.

Ÿ   Adjustable Input level, LPF, Subsonic, bass boost function, Qcontrol.

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

Ÿ   Advanced clip limit / thermal power limit function.

Ÿ   Easy bridgeable with same amplifier.

Ÿ   Optional remote controller.

Real Product Photo,




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Address

F2,Building 1 Deng Wu Industry Park, Qiaolong Rd. 582, Qiaotou Tow, Dongguan, Guangdong

Phone +86 186-0300-8861
       (Wechat ID yubaudio)
Email

sales@yubaoaudio.com