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The Telsie S has quickly become our favorite EQ. 
It’s super easy and intuitive to control. The top-end sounds better than anything we have heard from other EQs.
It truly makes anything shine.
This EQ is an exquisite sound-designing tool. We wouldn't want to work without it anymore.

Thomm Jutz
Producer, songwriter
TJTunes, Nashville/TN

The Telsie S sounds absolutely gorgeous, I think I’ve found a new best friend. Do yourself a favor and try the Telsie S for yourself—I simply love it.

Farzad Rahnavard
Mastering Engineer
Duo Mastering, Hamburg

Read the complete review

Designed and built for the ARD (Association of German Public Broadcasters) in the 70´s, the Siemens mixing consoles reflected what was technically feasible at the time and were at the cutting edge of technology.
These mixing consoles were the direct successor for the tube-based V72/V76 mixing consoles.

Highly sought-after modules like the V276 Microphone Preamp and the W295 Series Equalizer were used in these consoles.

Siemens offered 3 different Equalizer versions: The W295, the W295a and the W295b which has the most elaborated design of the 3 models.

All these models share a low-shelf filter and high-shelf filter, while only the W295b features a mid-band with a presence/absence filter.

The W295b is still today the secret weapon of many engineers as it provides these VERY nice airy highs ….

At SonicWorld we know this analog marvel very well, as we have been servicing and racking many of these units in the last 20 years.

Now you can have that sound without the crackle of old switches, dried-out capacitors, hard-to find transistors, etc.

The features of the Siemens W295b and Telsie S:

Similar to the original hardware device, the Telsie S is a three-band equalizer with shelf-filters on the high and low bands and a peak filter on the mid band. The low-shelf filter has its ±15 dB point at 40 Hz, while the high-shelf filter has its ±15 dB point at 15 kHz.

The mid-band is a presence/absence filter with Peak characteristics and 6 selectable center frequencies:
0.7 kHz, 1 kHz, 1.5 kHz, 2.3 kHz, 3.5 kHz, and 5.6 kHz, and a maximum boost and cut of 8 dB each.
This peak filter has a proportional Q factor. This means that the width of the bell narrows the more dB you boost or cut.

The additional benefits of the Telsie S plug-in

Low Band Filter with additional frequencies:

As an alternative to the original device's low-shelf filter at 40 Hz, there are additional peak filter frequencies with center
frequencies at 40, 60, 100, 160 and 220 Hz.

These peak filters have a proportional Q factor, meaning the width of the bell narrows the more dB you boost or cut.
These additional peak filter frequencies give you significantly more sonic possibilities than the original shelf filter at 40 Hz.

High Band Filter with additional frequencies and AIR switch:

The high band features the original device's super nice- sounding high-shelf filter at 15 kHz. As an alternative Telsie S also offers two additional peak filters with center frequencies at 12 kHz and 14 kHz, with a maximum boost or cut of 15 dB in 3 dB steps.

The AIR switch significantly extends the high band's frequency response. You can experiment with running your session at a higher sample rate to make this effect even more noticeable

Harmonics function:

Each of the three equalizer bands has a harmonics function with two parameters: Drive and Out.
The Drive control allows you to adjust the amount of harmonics added to enrich the signal.
You can use the Out control to compensate for the increase in volume caused by the Drive section.
The two parameters are linked by default. You can disable this by using the Link switch.

Be careful when you do this as extreme boosts or cuts are possible.
Extreme boosts could not only harm your ears, but also your equipment.
We do not take responsibility for any potentional damage.

Low Cut/ High Pass and High Cut/Low Pass Filter:

The Low Cut (High Pass) and the High Cut (Low Pass) filters are used to clean up the frequency range of your signal .
For example low rumble on an acoustic guitar or vocal track can be easily reduced with the Low Cut, or you can cut the high-frequency range for nasty frequencies.
Or with using both filters to give room for other tracks.
The cutoff frequency is freely selectable, both filters have a gentle slope of -12 dB per octave.

X-OverS Low Band/Mid Band and Mid Band/High Band:

On the analog W295b, the high and low band curves are extremely broad. This means that a boost or cut in the 40 Hz shelf band has a sonic impact up to approximately 2 kHz. With the 15 kHz shelf band, a boost or cut has a sonic impact starting at around 200 Hz.
This characteristic never sounded appealing to us, as it often results in unwanted processed frequency ranges, even if you only want to boost or cut at much higher or lower frequencies.

This is where the two X-Over frequency controls come into play.
These allow you to set the respective frequency at which the Telsie S's three equalizer bands merge.
The factory default crossover frequencies for the two crossover frequency controls are 500 Hz and 7 kHz.
This lets you give the presence band more space, even if you don't want to boost or cut anything in this frequency range.

This is very helpful for significantly influencing the equalizer curves and finding the right sound for different EQ requirements. You can boost for example with the low band a good amount at 220Hz or lower to give vocals a good basis and you can cut off unwanted higher frequencies at 400 Hz if you lower the X-over from 500 Hz down to 400 Hz.

The same goes for the high band. You can massively boost the high frequencies and avoid boosting unwanted frequencies at 7k if you set the X-Over Mid-High to a higher value than 7 kHz.

Try our EQ presets to find out how useful this feature is!

The Master Gain is used to compensate for level differences caused by equalization or harmonics.
Clicking the Master Gain control resets it to 0 dB.

The Parameter Bar displays the set values ​​of the three harmonics bands LBH (Low Band Harmonics), MBH (Mid Band Harmonics), HBH (High Band Harmonics), the Low- and High-Cut filters, the chosen frequencies of the two X-overs and the Master Gain.

Master Gain and Parameter Bar: