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Active crossover

An active filter is a circuit built around an operational amplifier itself usually consists of several bipolar transistors or field effect. It performs filtering and amplification of the signal passing through it. Unlike its passive counterpart, the active filter can optionally have a voltage gain greater than one. In addition, it has the advantage of being more reliable (the entire production process is automated), less expensive (when produced in large quantities), more compact (the parasites- elements resistors, capacitors, inductances- are thus lessened) and therefore integrated within an integrated circuit. Nevertheless we recognize the active filter several disadvantages like bad behavior at high frequencies (reduction of bandwidth, which tends to limit its use to audio applications), high sensitivity with accuracy the value of the components (that departs usually of the face value of at least 10%), the need for additional power source and limiting the amplitude of signals in the order of the Volt. Moreover, the operational amplifiers generate noise. Historically, the first discrete filters ROE (+ RC circuit operational amplifier) appeared in the mid sixties. It should nevertheless expect the seventies, with the first commercial integrated circuit (HIC and DIP) to be revealed the economic interest of this type of filter.


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X 223

€91.48
In stock
LD Systems X223 analogic active crossover, stereo 2 ways / mono 3 ways

DA-70157


Ce produit a des prix degressifs par quantite
€20.63
In stock
USB/RS485 Converter, Monacor DA-70157

DEQ-230


Ce produit a des prix degressifs par quantite
€355.20
In stock
Digital 2 x 30 band equalizer, IMG Stageline DEQ-230

DPA 260

€779.00
Supplied on order
LD Systems DPA 260

DPA 260 RC

€139.00
Supplied on order
LD Systems DPA 260 RC

XP-4080

Supplied on order
Xilica XP-4080 audio processor, 4 inputs, 8 outputs

DSM-260LAN


Ce produit a des prix degressifs par quantite
€585.23
Supplied on order
DSP Processor Monacor DSM-260LAN, 2in / 6out

DSM-26LAN


Ce produit a des prix degressifs par quantite
€489.30
Supplied on order
DSP Processor Monacor DSM-26LAN, 2in / 6out

DSM-48LAN


Ce produit a des prix degressifs par quantite
€583.39
Processing in supply
DSP Processor Monacor DSM-48LAN, 4in / 8out

DRM-880LAN


Ce produit a des prix degressifs par quantite
€1,263.44
Supplied on order
Digital matrix router Monacor DRM-880LAN, 8in / 8out

XP-3060

Supplied on order
Xilica XP-3060 audio processor, 3 inputs, 6 outputs

DS21

€180.44
Supplied on order
Contrôleur DSP 3 canaux LD Systems DS21

XP-2040

Supplied on order
Xilica XP-2040 audio processor, 2 inputs, 4 outputs

XP-8080

Supplied on order
Xilica XP-8080 audio processor, 8 inputs, 8 outputs

XD-8080

Supplied on order
Xilica XD-8080 audio processor, 8 AES/EBU inputs, 8 outputs

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