Steep 24 dB/octave slope.
Crossover frequencies available: 10 - 20000 Hz.
Outputs are always in phase with each other.
Small 2" x 3" circuit board.
Fourth order constant voltage design (Linkwitz-Riley alignment).
The XM1 electronic crossover network module is a
fourth order constant voltage crossover design. The
module provides both low-pass and high-pass outputs.
The slope of both outputs is 24 dB/octave. Because of
the fourth order design the high-pass and low-pass
outputs of the crossover are always in phase with each
other. The crossover network is implemented as a fourth
order state variable filter. This filter provides both the
high-pass and low-pass function simultaneously,
guaranteeing a close match of the high-pass and
low-pass responses.
One crossover network is needed for each channel of
a bi-amplified system. A tri-amplified system needs two
networks per channel, one to separate the high
frequencies from the mid-low frequencies and another
one to separate the low and mid frequencies. A quad
system needs 3, and so on. The filter can also be used
to drive a subwoofer, where the subwoofer is shared by
the two channels of the stereo system. The crossover frequency of the
XM1 electronic
crossover can easily be changed by changing the value
of four resistors. These four resistors are mounted on an
8 pin DIP header plug for ease of change. A trimmer
potentiometer on the circuit board allows for adjustment
of the frequency response at the crossover frequency. A
boost of up to 2 dB at the crossover frequency
compensates for a dip in the response at the crossover
frequency found in some systems.
The XM1 electronic crossover is built on a 2" x 3"
printed circuit board of high quality glass-epoxy material, double
sided plated through hole. The crossover uses only high grade
components: 1%
metal film resistors, 1% polystyrene film
capacitors for the filter capacitors and three dual FET
input operational amplifiers(BurrBrown OPA2134). Terminal blocks for
input, output
and power make for easy hookup.
Note that the XM1 requires a separate power supply, case, etc. to
function. For a fully functional crossover , ready to go, see XM9, XM16, XM44, XM26, XM126.
SPECIFICATIONS: Frequency response: DC to 100 KHz, +/- 0.2 dB Crossover frequency choice: 20 Hz - 20 KHz Insertion gain: 0dB ( 1X ) Filterslope: 24 dB/Octave Harmonic distortion at 1KHz: less than 0.01% Signal to Noise ratio: better than 110dB Input impedance: 25K Output load capability: 2K min Output impedance: 100 Ohm typ Maximum input voltage: 25 V peak-peak (8.8 V RMS) Power supply requirement: dual regulated +15V and -15V @15 mA, typ. Ordering Information: XM1-A.........Electronic Crossover Board (as shown above; no case, etc included) XM1-FMA.......Frequency module only (one of these is included with XM1-a)
Please specify the desired crossover frequency when ordering. We can ship with any frequency at no extra charge.