Professional Power Amplifier JWDTE01

Short Description:

A pure power amplifier with constant voltage is a type of power amplifier, but it differs from ordinary amplifiers in its output method. Ordinary amplifiers usually use low impedance output to directly drive speakers, which is suitable for short-distance transmission. However, constant voltage amplifiers use high voltage output (commonly 70V or 100V) and match impedance through a transformer, which is suitable for long-distance transmission. This design allows the signal to attenuate less during long-distance transmission and can connect more speakers at the same time.

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Product Introduction

JWDTE01 constant voltage pure power amplifier is with high voltage output by increasing voltage and reducing current, it reduces line losses and is suitable for audio systems covering large areas. This pure power amplifier design means it only provides power amplification and does not include functions such as source switching and volume adjustment. It requires a mixer or pre-amplifier for use. With constant voltage transmission, it maintains stable output even over long lines or with varying loads.

Key Features

1. The high-grade aluminum 2 U black drawing surface board is beautiful and generous;
2. Double-sided P C B board technology, stronger attachment of components, more stable performance;
3. Using a new pure copper transformer, the power is stronger and the efficiency is higher;
4. With RCA socket and XLR socket, the interface is more flexible;
5. 100V and 70V constant voltage output and 4 ~ 16 Ω constant resistance output;
6. The output volume can be adjusted;
7. 5 unit LED display, it is easy to observe the working status;
8. It has perfect short-circuit, high-temperature, overload, and direct-current protection functions; ※ Temperature control of the heat dissipation fan is activated;
9. It is very suitable for medium and small public field broadcasts.

Technical Parameters

Model No.	JWDTE01
Rated output power	300W
Output method	4-16 ohms (Ω) constant resistance output
Output method	70V (13.6 ohms (Ω)) 100V (27.8 ohms (Ω)) constant voltage output
Line input	10k ohms (Ω) <1V, unbalanced
Line output	10k ohms (Ω) 0.775V (0 dB), unbalanced
Frequency response	60 Hz ~ 15k Hz (± 3 dB)
Non-linear distortion	<0.5% at 1kHz, 1/3 of rated output power
Signal to noise ratio	>70 dB
Damping coefficient	200
Rate of voltage rise	15V/uS
Output adjustment rate	<3 dB, from no signal static operation to full load operation
Function control	One Volume adjustment , One power switch one
Cooling method	DC 12V FAN forced air cooling method
Indicator Power	‘POWER’, Peaking: ‘CLIP’, Signal: ‘SINGNAL’,
Power cord	(3 × 1.5 mm2) × 1.5M (standard)
Power supply	AC 220V ± 10% 50-60Hz
Power consumption	485W
Net weight	15.12kg
Gross weight	16.76kg

Connection Diagram

（1）Equipment cooling window （2）Peak suppression indicator (distortion lamp)
（3）Output protection indicator （4） power switch （5）Power indicator
（6）Signal indicator （7）High temperature protection indicator （8）output volume adjustment

（1）Power transformer output insurance （2）100V constant voltage output terminal（3）70V constant voltage output terminal
（4） 4-16 Euro constant resistance output terminal（5）COM common output terminal （6）AC220V power fuse
（7）signal input terminal （8）signal output terminal（9）AC220V power supply

Note: Only one pair of the four output terminals of the power amplifier can be used during the period, and any pair must be connected to the COM common ground!

The connection method of the rear panel XLR socket is as shown as below: