Model :TUBRO-709 Output Power (RMS):90Wx2(4ohms) Frequency Response:20Hz-20KHz¡À3dB Sensitivity:250mv S/N Ration:85dB Distortion:¡Ü0.5% Dimension:150x430x325mm NW:8kg. Package with carton.
1.65gb/s; composite video; 1x4 div-1 interface; 30000h
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.
Detail: Equalizer EQ PN 712719 40MHz Reverse Equalizer (0dB-12.0dB) Increments by 1dB.
30w tube guitar amplifier Model gt-30h Power 30w Speaker no Impedance 16ohm, 8ohm 4ohm (switchable) Features Auto standby Four el84s and three 12ax7s 2-channel preamp Pre- post-gain controls on lead channel Normal volume control on clean channel 3-band passive eq(bass, middle, treble) Boost switch Footswitch selectable channel switching and reverb Speaker output jack Spring reverb Black vinyl covering Front board 3mm aluminum-alloy Back board 1 mm stainless steel Connect with gt-30c We provide kits , oem and odm services, please use kldguitar being keywords in google and contact with us directly so we can reply you in time Dimensions 51(w) x 27(h) x 25(d)(cm) (unpacked) 58(w) x 35(h) x 37(d)(cm) (packed) Weight 15.5kg (packed) 12 kg(unpacked)
5w tube guitar amplifier 5w (rms) 12ax7, 6l6 Hi-lo imp input Trs out jack Standy Three control pre-volum-tone- 6.5 inches speaker Embedded attenuater Pentode/triode sw(3/5 w) Cartoon 255x160x270mm Weight 6.5kg
Gt-60 Power 60w Speaker 2x10inch Impedance 8ohm Features Two el34s and three 12ax7s 2-channel preamp pre- and post-gain controls on lead channel Normal volume control on clean channel 3-band passive eq (bass, middle, treble) boost switch reverb level controleffects loop footswitch selectable channel switching and reverb external speaker capabilitychrome-plated chassis brown vinyl covering two fender oem speaker Dimensions 64 w x 40h x 24 d cm(unpacked) 67 w x 45 h x 28 d cm(packed) Weight 28kg
The Golden Portable PA is perfect for large meetings of up to 500 people. Control up to three different microphones (2 wire, 1 wireless) separately, as well as a master volume. The wireless mic is loud and clear to a distance of over 20m. Connect more then one Golden Portable PA together for extra large gatherings or surround sound. Available with tripod stand.
Amplifier Mic power amplifier : 3 mic inputs, 2 aux inputs, 1 aux output; fice led displays 70v, 100v and 4-16 ohm balanced outputs Automatic insertion of source and mute Separate volume control, hight/low sound adjustment Alarm and protection in case of short circuit Only the equipment as a pa system
Guitar amplfiier We are highly recommend you to purchase some samples you are interested to evaluate them before you placing a main order . If you let us know what samples you want to purchase , we will immediately send you a proforma invoice with our bank account via e-mail . We promise that we will strive to build mutual benefits with you for long lasting profitable business relationship . If you have any questionable things , please feel free to contact us . We need to communicate to build mutual trusts as business goes .
Professional amplifer Pa-50004+ stereo power 750 w x 28+ stereo power 500 w x 2bridged output 1500 wthd
Uhf 32 channel wireless amplifier 1. Uhf 700-960mhz professional channel 2. Lcd display af level, rf level, channel value, frequency value and battery life of transmitter and receiver. 3. Pll synthisized design, with high channel stability 4. Power off automatically under low voltage to protect inside accumulator 5. Pilotone & noise lock technology 6. Advanced smt technology to ensure the quality 7. Has got fcc approval
All types of metals fresh and scrap materials, wood, iron,alloy,electronic goods.
We supply metal structural bleacher system that suitable ourdoor, telescopic seating system, bleacher seating, stadium seating, stadium seating chairs.According to customer requirement, and depend on the site condition we supply 5 kinds of metal structural bleacher system, and 2 kinds of telescopic seating system
Audio and mobile accessories like headphones, bluetooth neckband, bluetooth speakers, true wireless earbuds, handfree, phone charger, data cable and mobile accessories.
Dynamic Strain Amplifiers ModelCJ3818D Channels4,8,16,32,64 Bridge Resistance60-10000 Input Range0 - ±50000 Output Range±5VP/5mA Noise3V StabilityZero ±0.1V/??; ±0.1%/F.S/2h Sensitivity±0.01%/F.S//??; ±0.1%/F.S/2h Bridge Voltage1,2,3,4,10VDC/50mA GainSteps100,300, 1000,3000 Accuracy±0.5% Nonlinearity0.1% FS Balance (Resistance: Within 1%)Auto: ±5000 Measurement ModeDC,AC,PK+,PK- Frequency RangeDC-300kHz Low-Pass Filter(-3dB,-12dB/OCT)30,100,300,1k,3k,10k,100k,300kHz Operating EnvironmentOperating Temperature: -10 to 50??; Humidity: 85% R.H. Power SupplyAC220V50Hz Dimensions(mm)499W Ã?177HÃ?377D Weight6.5kG Input/Ouput TypeInput:7-Pin Socket Output: LBNC
Optical communication products, optical fiber cables, optical transceiver modules, optical splitter adapter connectors, communication cables, power cables, power cable tool products, data communication equipment, video and audio transmission broadband multimedia equipment, computers and supporting equipment, power electronic products.
Consumer electronics, televisions, mobiles phones, white goods, audio, led lightbulbs..
Professsional power amplifier manufacturer 2*1500w at 8ohms Also available at 4ohms and 2ohms using Suitable for outdoor events
100% Digital processing for exceponal sound quality Bluetooth Open-fit APP provided: -Volume control -Memory switch 2 channels WDRC amplifier 12 bands frequency shaping Low battery warning Open-fit design,easy operating Rocker Switch Wideband MPO Low current consumpon Advantages Digital open-fit Bluetooth
