Marca: Focusrite

Tienda: Madrid HiFi

Disponibilidad: En almacén, envío inmediato.

Focusrite previo de micro/linea isa-428mkii . previo de micro / línea de 4 canales. conversión a/dd/a de mediante la tarjeta opcional de expansión para d/a. previos con ganancia y trim con ajuste independiente, hpf variable 16-420 hz y 4 ajustes de impedancia. 4 entradas frontales de instrumento en jack 1/4 y entradas de micrófono balanceadas con transformador xlr3. la salida digital es mediante la tarjeta opcional. 2u de rack.. caracteristicas:. mic inputs . . frequency response at minimum gain (0db): -0.35db at 20hz and –3db at 122khz . frequency response at maximum gain (60db): –2.5db at 20hz and –3db 103khz . gain range: 0db to 60db in 10db steps, plus 0db to 20db continuously variable trim . maximum headroom: 7.4dbu . thdn: 0.0009% (measured at 1khz -20dbu input signal, at 30db gain setting, with a 20hz/22khz bandpass filter) . noise ein: -126db (measured at 60db of gain with 150ohmios termination and 20hz/22khz bandpass filter) . noise at main output with unity gain: -98dbu (measured with a 20hz/22khz bandpass filter) . snr: 123db (relative to max output 25dbu) . snr: 120db (relative to 0dbfs (22dbu) . cmrr: 88db. . input impedance, variable: 600ohmios, 1400ohmios, 2400ohmios, 6800ohmios . . . line inputs . . frequency response at unity gain (0db): -0.3db at 20hz and –3db at 94khz . gain range: -20db to 10db in 10db steps, plus 0db to 20db continuously variable trim . maximum headroom: 25.4dbu . thdn: 0.002% (measured with 4dbu input signal, 0db gain setting, with a 20hz/22khz bandpass filter) . noise at main output with unity gain: -91dbu (measured with a 20hz/22khz bandpass filter) . snr: 116db (relative to max output 25dbu) . snr: 113db (relative to 0dbfs 22dbu). input impedance: 10kohmios . . . instrument inputs . . frequency response at 10db gain: -0.2db at 20hz and 0db at 200khz . frequency response at 40db gain: -3db at 20hz and –3db at 38.4khz . gain range: 10db to 40db continuously variable . maximum headroom: 11.5dbu . thdn: 0.006% (measured with –20dbu input signal, at minimum gain (10db), with a 20hz/22khz bandpass filter) . noise at main output with minimum gain (10db): -95dbu (measured with a 20hz/22khz bandpass filter) . input impedance = >1mohmios . . . high pass filter . . roll off = 18db per octave 3 pole filter . frequency range: 16hz to 420hz (continuously variable, measured at the 3db down point) . . . meters . . 6 led meter is calibrated 0dbfs = 22dbu (the maximum level which can be correctly converted by the optional internal a/d converter before overload occurs). the meter calibration points are as follows: . meter panel calibration value in dbfs / equivalent dbu value . 0dbfs / 22dbu . -2dbfs / 20dbu . -6dbfs / 16dbu . -12dbfs / 10dbu . -18dbfs / 4dbu . -42dbfs / -20dbu . front and rear connectivity . analogue channel inputs (inputs 1-4) . 4 instrument 1⁄4 ts jack inputs on front panel . 4 microphone xlr inputs on rear panel . 4 line 1⁄4 trs jacks on rear panel . 4 insert return 1⁄4 trs jacks on rear panel . 4 adc xlr inputs on rear panel . . . analogue audio outputs (outputs 1-4) . . 4 line xlr outputs on rear panel . 4 insert send 1⁄4 trs jacks on rear panel . . . other i/o . . iec power input connector 100vac – 240vac . front panel indicators . 8 output meters, 6 segment . 4 30-60 mic gain range selection indicator . 4 48v phantom power indicator . 4 phase indicator . 4 insert in indicator . 4 filter in indicator . 4 input selection indicators (mic, line, inst) . 4 z in microphone input impedance selection indicators (low, isa110, med, high) clock select indicators (44.1, 48, 88.2, 96, 176.4, 192) . ext clock indicators (lock, word clock, 256x) . . . weight . . 5.5kg . 12.2lbs . . dimensions (wxhxd) . . 480mm (w) x 88mm (h) x 280mm (d) . 19 (w) x 3.5 (h) x 11 (d) .