XM26 Tube Electronic Crossover Network
Factory built with All options,
Fully Balanced, 24 position stepped attenuators
4 sets Frequency modules
Any Frequency, all slopes available, 48.00 per set
8 NOS EI 12ax7 Telefunken tooled tubes, 0 hours
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.
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.
XM26-AA Vacuum Tube Crossover, $2000.00
XM26S-AA Crossover with attenuators instead of potentiometers $2400.00
XM26-BALA Balanced option, $ 600.00
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)
XM26S-AA.......Tube electronic crossover .
XM26-FMA......Frequency module (4 required)
Shipping, 35.00 flat rate US
Please email for Pics and questions,
All the best,