XM26 Tube Electronic Crossover Network

Uses Vacuum Tube technology for superior sound quality.
Steep 24 dB/octave slope.
Slopes of 6dB/oct, 12dB/oct , 18dB/oct and 24dB/oct available.
Crossover frequencies available: 20Hz - 20KHz.
Subwoofer summing switch.
Heavy duty gold plated RCA connectors for input and output.
Fourth-order constant-voltage design (Linkwitz-Riley).
Outputs are always in phase.
No transients during turn-on or turn-off.
Toroidal power transformer.

The XM26 Electronic Crossover Network is a fourth- order constant-voltage crossover design that provides both low-pass and high-pass outputs. The slope of each output is 24 dB/octave and, because of the fourth-order design, the high-pass and low-pass outputs of the crossover are always in phase with each other.
The XM26 uses 4 12AX7 tubes in each of the two channels. It has a solid state regulated power supply for the filament voltage. Power is provided with a heavy duty toroidal power transformer.
The crossover frequency of XM26 Electronic Crossover Network can easily be set by replacing a frequency module. A total of four frequency modules set the crossover frequency for left and right, low and high pass filters. Each frequency module has the capacitors and resistors that set the crossover frequency and slope for that channel. Normal slope is 24 dB/oct, 4th order, constant voltage (Linkwitz-Riley), but modules for first, second and third order slopes are also available.
The XM26 front panel has 4 calibrated level controls, one for each low pass and high pass, for left and right channel. A sum switch allows the low pass channel to be summed. This is useful when using the XM26 with a common subwoofer.
Available options include 24 position stepped attenuators instead of the standard potentiometers for level control. These stepped attenuators are calibrated in 0.5 dB steps and allow very accurate setting of the levels for each output.
Balanced inputs/outputs are also available as an option.
The XM26 is also avalable as 1-way instead of 2-way. The 1-way can be used as low-pass only to drive subwoofers or as high-pass only.


SPECIFICATIONS:
Frequency response: 5Hz to 100 Khz, +/- 1 dB
Crossover frequency choice: 20 Hz - 20 KHz
Insertion gain: -1 dB with level controls at maximum.
Filter slope: 24 dB/Octave
Harmonic distortion at 1 KHz: Less than 0.1%
Signal-to-noise ratio: Better than 110 dB
Input impedance: 1M
Output load capability: 10 KOhm min.
Output impedance: 500 Ohms typical
Maximum input voltage: 25 V peak-peak (10 V RMS)
Power supply requirement: 117V AC. 1A
Dimensions: 17" x 3.5" x 11" (wxhxd)
Shipping weight: approx. 15 pounds (7 Kg)

ORDERING INFORMATION:
XM26-AA.......Tube electronic crossover .
XM26-1AA......low pass only tube electronic crossover
XM26-FMA......Frequency module (4 required)

When ordering please specify the crossover frequency. We have
frequencies from 20Hz to 20 KHz available in 6,12,18 and 24 dB/oct.