A Valve Pre-Amplifier to meet the highest standards. Inside, the 4x12AX7 and 3x12AU7 valves provide the perfect pre-amplification for weak signals. The circuitry with its negative feedback design is the optimum of linearity and sound. Gold-plated high-grade Neutrik XLR input and output connectors take the relevant cables, giving the best possible quality, and they guarantee a clean sound.
Frequency response: 20 Hz 50 kHz +/- 0.5 dB, Output voltage: 2V
Total harmonic distortion: < 0.1 % (1 kHz, 1 Watt)
Input sensitivity: 240mV, Signal-Noise ratio: > 90 dB
Input impedance: 47 kOhm, Inputs (golden): 4 x RCA, 2 x XLR NEUTRIK
Outputs (golden): 2 x RCA, 1 x RCA Rec Out, 1 x XLR NEUTRIK
Power Control Switched output voltage: 2 x Trigger 12 V (Output)
Mains supply: 230 V/50 Hz, Weight: 10 kg
Dimensions (WxHxD): 430 x 135 x 370 mm, Colour: black/silver
Tubes: 4 x 12AX7, 3 x 12AU7, double transformer
A valve Pre-Amplifier to meet the highest standards. Inside, the 4x12AX7 and 3x12AU7 valves provide the perfect pre-amplification for weak signals. The circuitry with its negative feedback design is the optimum of linearity and sound. Gold-plated high-grade Neutrik XLR input and output connectors take the relevant cables, giving the best possible quality, and they guarantee a clean sound.
Here are the specifications of the new version:
* The program works with the Audio Analyser ATB 701
* The program includes the comfortable ATB 701QC program
* Setting of the definition without script, there is no need of learning to program
* Tolerance field is easy to set automatically or with the mouse
* Rub&Buss is tested with the signal 13 to get a nonlinear distortion measurement
* Surrounded noise does not disturb the Rub&Buss measurement because of the Q-Index calculation
Measurement functions
1. Total Harmonic Distortion THD
2. Intermodulation Distortion, IMD
3. Frequency response(SPL)
4. Impedance(IMP)
5. Polarity Test
6. Thiele-Small Parameter
7. Phase
8. Step response
9. Quality Control Program
Thiele-Small Parameter
Frequency response of phase
Intermodulation Distortion IMD
Total Harmonic Distortion THD
Quality Control Program
Rub&Buss measurement Passed
Rub&Buss measurement Failed
1. Frequency response
The frequency response is tested with the M-PN signal. The measurement with this periodic noise gives the highest accuracy. The tolerance mask can be set automatically or manually.
2. Rub&Buss measurement
The Rub&Buss is tested with the signal 13. The signal 13 consists of two sine-sweeps with the frequency ratio of 1 : 1.3. This signal is showing all resonances of the unit under test.
For the passed and failed decision the Q-Index is calculated. The index is calculated from all frequencies higher than the second frequency of the test signal 13. The account is set into proportion to the amplitude of the test signal. The best speaker has the highest Q-index.
The Rub&Buss measurement has following tests.
Calculation of error
1. THD, K2,K10 The test is for the controlling of the placement of the voice coil.
2. IMD The test is for the controlling the gluing, loose particle and if there are cone touching of connection wires.
3. Frequencies > K5 The test is for the controlling of voice coil rubbing the magnet.
3. Distortion THD Test
The THD test tests the harmonic distortion. The test signal is a sine wave with frequency to select. Because this test is included in the Rub&Buss test it is only for the special demand of the manufacturer. In the definition there is to set the maximum THD and the frequency.
4. Polarity Test
The polarity test is for testing the wiring. It is for speakers, headphones and microphones. The test signal is a half sine wave. In the time response the program calculates if the positive or negative amplitude is the greatest value.
PAC2000 amplifier is high quality linear power amplifier specially designed for power system simulation.It realized the high accuracy of the high power and high current successfully.It meets all kinds of capacitive load and inductive load.
Features
1 Channels current outputs. The output current of each channel can reach 200A RMS. The maximum output power can reach 2400VA.
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Best application assistant for real-time digital simulation system
With around 13 various power amplifier models and countless customized solution models, ponovos power amplifier could be able to suit for different real-time simulation sysmtem application requirements.
Pav series four-quadrant simulation power amplifier based on linear power amplifier technology and integrated advanced technical performance and rich functions.
It is vastly used by the institutes in the area of power, new energy, aerospace, rail transport, mining, petrochemical etc.
It is also the ideal r&d device of wind power, pv, electric car, large power charging device, aerospace power system, marine power system, distribute energy, micro grid etc.
It can directly connect to the popular simulation platform.
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