technical data
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technical data
frequency response
0.1 Hz - 130 kHz (-3 dB)
0.35 Hz - 50 kHz (-0.4 dB)
1 Hz - 20 kHz (+/- 0.05 dB)
total harmonic
less than 0.002% @ 1 kHz 250 W into 8 Ohms
dist noise
less than 0.01% from 20 Hz to 10 kHz @ 250 W into 8 Ohms
less than 0.05% from 20 Hz to 20 kHz @ 250 W into 8 Ohms
polarity (phase)
non-inverting between any input and output
operating
10 - 35°C
temperature range
ac supply frequency
50 - 60 Hz, depending on country
ac supply voltage
100 V, 110 - 120 V or 220 - 240 V
the voltage is marked on the rear of the product
power consumption
approx. 650 W, standby less than 10 W
dimensions
215 mm wide
(including feet,
152 mm high
terminals and controls)
352 mm deep
We reserve the right to alter design and specification without notice.
Specification may vary for different countries.
This section is for those of you who really want to know the ‘insides’ of your 250MR. You will not
miss out on any of the functions or performance of your 250MR if you choose not to read any
further.
rated power output
250 W into rated load impedance (8 Ohms)
IHF toneburst
300W into 8 Ohms
550W into 4 Ohms
1000W into 2 Ohms
(20 ms full on, 480 ms at -20 dB repeated indefinitely)
input for full rated
1.65 V rms
power (RC
A
or XLR)
input impedance
line input RCA: 10 kOhms nominal
balanced input XLR: 25 kOhms (10 kOhms)
nominal on hot (cold) input pins
gain
28.8 dB at 1 kHz
balanced input
Better than 40 dB at 1 kHz
common-mode rejection
signal to noise
greater than 90 dB (relative to 0 dBW) unweighted
GRR00794.03-UK 250MR 5/4/02 11:50 am Page 30