The Pentodian Resonator Choir | Kontakt Instruments
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Hideaway Studio

The Pentodian Resonator Choir

Version: Kontakt 4.2.4 / NCW / V1.02

12 Unique Synthetic Choirs


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Product Overview

A selection of twelve unique synthetic choirs made up of 215 hand crafted vocal formants.

At least 50% of the samples in this collection were created using little more than a handful of discrete circuits and vintage lab gear all processed with vintage classic analog and tube technology and brought together in the same proven 4-voice layering engine as the Orbitone library….

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The Celestial Choirs featured in The Pentodian Choir started off life as little more than a series of short pulses created by an old hand-configured analog lab signal generator. The frequency of the pulse train was gently modulated using the swept oscillator function to act as a vibrato.

The pulses were converted into exponential ramps using a passive wave shaper circuit similar to those found in early string synths and the resulting sawtooth fed into a Triple Passive L/C Resonator circuit based on the 1938 Novachord formant resonator section. This is little more than three coils of wire and three capacitors!

The resulting waveform was then impedance buffered using the entire vertical signal path of a 1968 Tektronix 545B tube oscilloscope! The output from the vertical signal output socket was then fed into a prototype tube overdrive unit and into a tube equaliser.

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Captured By Hand

Well over 100 samples were painstakingly captured by hand configuring the equipment for each note and then sampling the results. The samples were further EQ’d and loaded into multi-samples.

Some of multi-samples were further processed with an analog chorus unit.

Image supporting Polymoog Formant Resonators…

Polymoog Formant Resonators…

Two of the choirs were created by feeding the brass organ stop from a 1972 Eminent 310U into a rehoused 1978 Polymoog Resonator Section. This proved remarkably effective and a similarly successful choir was made by feeding a string patch from a Matrix 1000 into the resonator. A third choir was the result of recording the previous results hot onto a 1967 Revox G36 tube tape machine and resampling.

The Vox Box…

A curious solo vocal effect was created using a prototype concept consisting of a triode based relaxation oscillator feeding a passive L/C resonator passed into a tube band pass filter modulated by the same LFO as the pitch vibrato.

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Equipment Used:

Hand configured analog pulse signal generator modulated by LFO, DIY Passive pulse to exponential wave shaper circuit, DIY Passive Triple L/C Formant Resonator Circuit based on 1938 Novachord impedance buffered with Y-amplifiers from a 1968 Tektronix 545B tube scope! DIY Tube Overdrive, 1972 Eminent 310U fed into rehoused 1978 Polymoog Formant Resonator Section, prototype analog chorus, 1967 Revox G36 tube half track tape machine, prototype Tube VoxBox, Hideaway Studio TEQ-9B Active 9-Band Gyrator Tube EQ, TL Audio EQ-2011 Tube EQ.

Download Contents

  • 215 generously long 24-bit samples
  • 12 hand made multi-sampled resonator choirs
  • 4-Voice Layering Engine with ability to save
  • 12 editable example instrument patches
  • 8 example layered multi patches
  • User Manual


  • Requires Kontakt version 4.2.4 or higher (FULL version please - Not Kontakt Player)
  • Around 500Mb Free Hard Disk Space


Dan Wilson (Hideaway Studio) – Equipment Design, Sound Design, Sample Set & Example Instruments.

Stephen Howell (Hollow Sun, RIP) – Layering Engine Concept, GUI Design & Graphics.

Mario Krušelj – Layering Engine Script



4.5 Stars (7)
★ ★ ★ ★ ☆ Verified Review

Retro but timeless

Great versatile collection of synth choirs. Not necessarily going to replace your sampled choir libraries but gives a unique flavour, harking back to the past but works well in more contemporary works too.

Pete Shipp

★ ★ ★ ★ ★ Verified Review

A Great Little Package

This library has some great sounds. They are really useful for layering with instruments and have a really nice but unusual quality to them. Couple that with a bargain price and you can't go wrong.

Mike Evans

★ ★ ★ ★ ★ Verified Review

Great choir synth!

Excellent choir sounds.

Ronald Ordonez

★ ★ ★ ★ ☆ Verified Review

Nice for layering

These sounds are great for layering with some real instruments, like strings or choirs. It gives it an "edge".

Andy Mollard

★ ★ ★ ★ ★ Verified Review

Beautiful Analog Choirs

SOUND QUALITY: 5; FEATURES: 5; PRESETS: 4; EASY OF USE: 5; INNOVATION: 4; VALUE FOR MONEY: 5; CONCLUSION: The sound is so beautiful that it alone nullifies any flaw. A plenty of features, layering possibilities, editable patches (although not too many of them). And first of all a rich and convincing analog sound.

Pedro Kerstitzsch

★ ★ ★ ★ ★ Verified Review

Gorgeous sounds

The choral equivalent of an analog string synth.

Timothy Rylatt

★ ★ ★ ★ ★ Verified Review

Great synthetic choirs

Very nice specialised library for choirs without human voices, which still can sound like human voices.
Can sound very elegic and spacy. You can combine your own layered instruments, as each instrument has four of them. So it can sound even epic.

Sarah Fenstermacher

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