Xfilter 500

100% Class-A Topology

Discrete input, output and mix stages plus the complete audio path running in constant class-A mode are the basis for an exceptionally transparent, wide and open sounding EQ.

True Stereo Operation

As one of the few exceptions in the market, the xfilter 500 processes both of its channels with just one set of controllers - a true stereo linked EQ.

Resonance High & Low Cut Filters

The shelving filters can be switched into high and low cut filters with an additional resonance peak. Not ordinary, but extremely useful.

Switchable Filter Quality

The quality of the peak filters can be switched from a wide to a narrow Q factor which remains independent from the setting of the gain controller.

Additional Passive High-Band

The beautiful sheen only passive filters can deliver... the xfilter 500 has it all. An additional LC filter with shielded coils gives you the 'Passive Massage'.

Stepped Controllers

All potentiometers on the xfilter 500 have 41 steps, which is a great help for recalling your previous sessions fast and precisely.

Computer-Selected Potentiometers

Every single dual and quad layer pot we buy is measured with custom computer routines, and only the good ones go into production.

Special Low Tolerance Capacitors

The special series of film caps used for the xfilter 500 performs twice as good as the industry standard in terms of component tolerance.

Ground Layer Shield

One of the four layers of both PCBs is a full copper plane which helps to reduce interferences caused by electric fields.

Frequency response:

< 10 Hz - 400 kHz (-3.0 dB)

THD+N

@ 0 dBu, 20 Hz - 22 kHz: 0.0018 %

@ +10 dBu, 20 Hz - 22 kHz: 0.005 %

Noise floor

20 Hz - 20 kHz (A-weighted): -98 dBu

Dynamic range

20 Hz - 22 kHz: 120 dB

Maximum level

Input: +21 dBu

Output: +21 dBu

Impedance

Input: 10 kOhm

Output: 68 Ohm

Power consumption

Total: 210 mA

Per slot: 105 mA