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IMF Electronics Reference Standard Professional Monitor

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Flagship laboratory-grade transmission line loudspeaker measuring 41" x 16.75" x 19". Features KEF B139 bass driver (11.75" x 8.25" flat polystyrene diaphragm) in tapered transmission line, 6" plastic cone midrange in separate short line, 1.75" diaphragm tweeter and 0.75" chemical dome super tweeter. Originally designed as laboratory device for professional monitoring.

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Kleinanzeigen

IMF Electronics Reference Standard Professional Monitor MK. IV Kleinanzeigen €1,999 Oct 19, 2025
- Nov 25, 2025

Finn

IMF Electronics - Reference Standard Professional Monitor MK.IV (Improved) Finn NOK 15,000 Sep 26, 2023
- Oct 4, 2023

Finn

IMF Electronics Reference Standard Professional Monitor MK. IV Høyttalere Finn NOK 18,000 Oct 13, 2021
- Oct 15, 2021

Lauritz

IMF Electronics. Par højtalere, model 'Reference Standard Professional Monitor MKIV' (2) Lauritz Auction bid
DKK 2,800 Jul 2, 2021
- Jul 7, 2021

Kleinanzeigen

IMF Electronics Reference Standard Professional Monitor Mk. IV Kleinanzeigen €1,200 May 26, 2021
- May 31, 2021

Kleinanzeigen

IMF Electronics: Reference Standard Professional Monitor Mk. IV Kleinanzeigen €1,200 Jul 21, 2020
- Sep 18, 2020

HiFi Occasion

Enceintes haut de gamme IMF Electronics Reference Standard Professional Monitor Mk IV (RSPM) HiFi Occasion €1,490 Dec 30, 2019
- Dec 27, 2020

Kleinanzeigen

IMF ELECTRONICS Reference Standard Professional Monitor MK. IV Kleinanzeigen €2,100 Mar 27, 2019
- Mar 29, 2019

Kleinanzeigen

IMF ELECTRONICS Reference Standard Professional Monitor Mk. IV Kleinanzeigen €1,900 5% Dec 25, 2018
- Jan 9, 2019

Quoka

IMF ELECTRONICS Reference Standard Professional Monitor Mk. IV Quoka €1,800 10% Dec 3, 2018
- Jan 9, 2019

Quoka

IMF ELECTRONICS Reference Standard Professional Monitor MK.IV Quoka €2,100 Dec 9, 2017
- Mar 29, 2019

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Model Variants of IMF Electronics Reference Standard Professional Monitor

1. IMF Electronics
2. Loudspeaker

Reference Standard Professional Monitor MK II

1. IMF Electronics
2. Loudspeaker

Reference Standard Professional Monitor MK III

1. IMF Electronics
2. Loudspeaker

Reference Standard Professional Monitor MK IV

1. IMF Electronics
2. Loudspeaker

Reference Standard Professional Monitor MK VII