Combo protect

QA 4300: 4x200W/8 Ohms, 4x300W/4, 2x600W bridgé /8 Ohms Contrôles en façade: – Contrôle du volume par canal grâce à un potentiomètre rotatif cranté (21 pas) – Indicateurs de niveau par LED: Signal, clip et Protect En face arrière: – Sélecteur STÉRÉO / BRIDGE MONO / PARALLÈLE Connexions: – Entrées sur connecteurs COMBO (XLR/Jack 6,35mm) – Sorties sur bornier à vis + SPEAKON pour le bridge – Protections électronique, thermique et électrique – Refroidissement par 2 ventilateurs à vitesse variable Caractéristiques – HPA QA 4300 – Amplificateur de puissance Classe AB – Puissance sous 8 Ohms: 4 x 200 W RMS – Puissance sous 4 Ohms: 4 x 300 W RMS – Puissance Bridge 8: 2 x 600 W RMS – Rapport signal / bruit: 100dB – Amplification AB – Distorsion: 0,01% – Bande passante 20Hz / 20kHz +0dB,‐0,5dB – Impédance d’entre symétrique 30 kOhms – Refroidissement par ventilateur vitesse variable – Niveau d’entre: +4 dbU – Entres: Combo XLR/Jack TRS – Sorties: Speakon + Bornier a vis – Switch mode Stéréo, Parallèle et Bridge. – Protections électronique, Thermique, Electrique. – Dim: 482 x 88 x 420mm – Poids 23,2 Kg Matériel d’occasion à révisé Frais d’envoi en plus

Nouvelle gamme d'amplificateurs stéréo bridgeables sous 4 Ohms disponibles sous de nombreuses puissances différentes. Plaque de connexion complète, double étage de puissance à refroidissement optimisé, faible encombrement et haut niveau de prestation. Fiche technique: Stéréo sous 8 Ω 2 x 210 W Stéréo sous 4 Ω 2 x 320 W Stéréo sous 2 Ω 2 x 430 W Bridge sous 8 Ω 650 W Bridge sous 4 Ω 850 W Bande passante 20 Hz à 20 kHz Distorsion à 1kHz/4Ohms 0,03 % Facteur d'amortissement à 400Hz sous 8 Ohms 250 > 350 Signal / bruit > 100 dB Crosstalk à 1 kHz sous 8 Ohms > 80 dB Protections CC/TH/DC/LIMITEUR Ventilation double canal régulé Indicateurs sur la façade Signal (-20/-10/0 dB) Clip, Protect et On Connexions entrées Fiches combo symétriques et XLR pour le link Connexions sorties Fiches Speakon et bornier Réglages Volume / switches Parallèle-stéréo-Bridge / filtre HPF, limiteur on/off Dimensions 19» 2U 482 x 88 x 420 mm Poids net en kg 13,7 Bon état général Frais d'envoi en plus

Professional sound at its best.   The CD 3000 3000W Power Amplifier combines a linear power supply and a Class D output to deliver Crest power in a compact and cost-effective package. The CD 3000 is very versatile, whether powering nightclub systems or touring bands.   A traditional linear power supply is used in the CD Series. Because of the efficiency of the switching output stage, the transformer does not need to be big or heavy. This gives the CD Series an advantage in delivering huge power in a compact package. The efficiency of the output stage also gives the power supply the ability to handle heavy duty cycles without compromising sonic integrity.   Crest Audio's engineering has also maintained sonic quality while incorporating the advantages of a switching output stage. High-power Class-D topology is the key to its efficiency and low operating temperature. An additional advantage is its low power consumption.   Features     Dramatically reduced net weight     Linear power supply / Class D output stages     Very low current draw     Latest generation of high-speed, mosfet output devices     Cooled by variable-speed fan with back-to-front airflow     Inputs: balanced female XLR, 1/4" TRS combi jacks     Outputs: Speakon and five-way binding posts     Mode selector switch for stereo, parallel and bridged-mono operation     Ground-lift switch and rear panel circuit breaker     Recessed, stepped attenuators with removable knobs     16-gauge steel chassis, cast aluminum front panel     TourClass protection circuits     ACL (Active Clip Limiting) prevents speaker damage by providing gentle gain reduction when signal approaches the clipping threshold     IGM (Instantaneous Gain Modulation) monitors speaker loads to detect conditions that may over-stress output devices, allowing safe operation into nominal 2 Ohm speaker loads     AUTORAMP gradually increases gain to the attenuator level-settings when the amplifier is turned on, preventing abrupt turn-on levels     Other protection features include: short circuit, DC voltage, comprehensive thermal management, current in-rush turn-on/off transient and sub/ultrasonic input     Five-year warranty Specifications     Stereo Power 8 Ohms: 800 Watts     Stereo Power 4 Ohms: 1500 Watts     Stereo Power 2 Ohm: 1800 Watts     Bridged Power 8 Ohm: 3000 Watts     Maximum output voltage: 85V rms     Frequency response 1W @ 8 ohms: 20Hz—20khz, +/-1db     Power bw rated power @ 4 ohms, 1% THD+N: 20Hz—20khz, +/-1db     THD + N:     Imd; SMPTE/DIN 4:1 (60 Hz / 7 khz):     Damping factor: 400:1 @ 8 ohms (20 Hz to 100 Hz)     Input CMRR: >60db @ 1khz     Gain / input sensitivity @ 4 ohms: Selectable: x20, x40, or.775 V for full rated output power     Input impedance: >20kohms balanced, >10kohms unbalanced     Hum and noise: > -100db, A-weighted below rated power @ 4 ohms     Crosstalk: > -60db below max rated power (1khz)     Class: D     Power supply: Linear with toroid transformer     Circuit breaker rating (120V/230V): 20A /12A     Current draw (120VAC) 1/8 power, 4 ohms: 7.0A     1/3 power, 4 ohms: 14.0A     At idle: 1.5A     Thermal emissions 1/3 Power, 4 ohms BTU / hr: 1024     Cooling: Back to front via variable speed DC fan     Input connectors: balanced female XLR, 1/4" TRS, unbalanced 1/4" TS on Neutrik combo connectors     Output connectors: Five-way "touch-proof" binding posts and Neutrik Speakon connectors (which presents both outputs on the A Speakon for bi-amplified applications)     Controls: front panel: twin recessed stepped attenuators, power switch     Rear panel: signal ground-lift, mode select, gain select, circuit breaker     LED indicators: signal level (5 element bargraph), protect, active, ACL / IGM     Construction: 16-gauge steel chassis, cast aluminum front panel - optional handles available     Dimensions (W x H x D): 19" x 3.5" x 1

100% Original SATLINK WS-6980 DVB-S2/C/T2  COMBO Optical Power Detection Constellation analyzer/ Spectrum analyzer Digital Satellite Finder Meter Très bonne etat, Aucun rayures ou fissure  Specification: ￭ 7 Inch High Definition TFT LCD Screen(1024*600) ￭ Fully DVB-S/S2,T/T2/C, MPEG-2/MPEG－4 compliant ￭ MPEG-2 / MPEG－4  H.264 Hardware decoding ￭ Supports scan of Auto,  Manual,NIT(DVB-S/S2) ￭ Supports scan of blind (DVB-S/S2/C) ￭ Supports Constellation analyzer ￭ Supports Spectrum analyzer ￭ Supports for multiple CH/TP detection ￭ Supports  Alarm for Locking Signal ￭ Auto Calculate Angle of AZ,EL ￭ Supports DISEQC 1.0/1.1/1.2,0/22khz Tone ￭ Stereo pairs of speakers ￭ Supports both AV IN/OUT ￭ Supports HDMI IN/OUT out and AV in ￭ Supports the DC12V output ￭ Electronic compass ￭  LNB, ANT, DC12V short protect ￭  The built-in flashlight ￭  Optical power detection ￭  7.4V/5000mAh Li-ion Battery ￭  Independent battery charging power ￭  Software upgrade via USB port 

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