Monacor IMG Stage Line 32.0790 420W Digital Active Subwoofer Module

Update (09/10/2020). Added another star. Having tested the water with one unit, I purchased another Duff Kef unit (£40) and another IMG sub amp. I have stereo subs. Paired with full range three way speakers it all sounds like overkill but it isn't. Fantastic sound stage, coherent sound that goes lowwwwww (but not noisily so). I have re-discovered music (CD and high bit rate Spotify). Astonishingly brilliant. Money well spentUpdate (19/7/2020). Mea Culpa!! I thought the first unit had failed under light use. It was in fact a speaker wire coming loose. My negligence for sure but it is worth praising Amazon and the supplier for the speed they sent out the replacement. This was FOC on the basis that I returned the "faulty" unit within the month. A great no quibble response that is simply great customer service.Update (15/06/2020).This is a good unit. Just ordered a second for my other PSW2010.Bought to replace the original plate amp driving the KEF "Eggs" sub woofer. The KEF amp is well documented for a serious design flaw that cooked the electronics over time and I tried and failed to fix it. KEF sold loads of these and the surround speakers are also very good being cast aluminium clad and using a dual concentric speaker. All of which leading to a very competent and surprisingly wide range speaker which is small and musical but robust with high SPL's if you really want that. Plenty of this kit on e-bay at cheap prices if you fancy an interesting project.After a few hours of listening (and comparing with a factory standard PSW2010) here are some thoughts.1) Appears to have a tighter control on the sound2) Class D amp runs very cool indeed.3) Smaller plate size than KEF unit but I have decided to live with this to ensure there is a good airflow around the electronics. (See pic of the "first fix"). The KEF plastic amp enclosure seems to have a decent rigidity which doesn't "bleed" enclosure vibrations and of course protects the amp electronics from a lot of kinetic energy4) Alas line-in gain range is a bit low IMO. ***UPDATE. Using a phono splitter (AmazonBasics 2-Male to 1-Female RCA Y-Adapter - 30.5 cm is great value at an incredible £5.40 for ten of them - nicely made) lifts the amount of gain to something workable.5) 4 stars for slightly shoddy circuit board construction that could develop dry jointing after some hours of serious use.This sub is used with an oldish Sony 5.1 receiver feeding KEF eggs and in an oldish but goodish Audiolab 8000 Pre and power amp/Mission 754F tower speaker set up, bi-amped config (nominally 100 W per ch). I really love the combo for its musicality, instrument detail, command and oomph. Music rather than home theatre is the order of the day where the Missions are very good but the sub (cut off at 40 to 60 Hz) provides a subtle but effective contribution to the overall range of the system. (For immediate WOW, listen to Martyn Bennet's "Grit",or any Metronomy, Afro Celt, Kraftwerk, Portishead or Prodigy). Lifting the sub amp frequency cut off to 120Hz results in a sloppy, mushy stand off with the Missions. I have tried to ensure that no system components are having to work hard and conservative settings on the sub bear this out - quality over quantity in spades.If you have the space and can clear it with your spouse, two subs are so much better than one especially when playing modern synth/sampler music that goes deep and has been properly engineered for low frequency on left and right channels. A surprising revelation.Have sold one faulty (£10) and one working (£40) PSW2010 on e-bay. Seems to be a bit of a demand.

The perfect fix for any Kef PSW or Kube subwoofer , sounds amazing even better then the original KEF module and runs ultra cool !Great Module 5 Stars !!

So far I’ve not had any issues, sounds great to me.

Vorab zu sagen dass was mich am Original Verstärkermodul vom Teufel wirklich gestört hat wardass 50Hz Brummen!!! Letztendlich habe ich mich zum Kauf dieser Endstufe bewogen weil michdie RMS Leistung angesprochen hat. Nach dem Erhalt habe ich den 30cm Subwoofer Lautsprecherangeschlossen, und allmählich die Leistung gesteigert. Nach dem der 7.1 Verstärker und die Endstufeziemlich stark aufgedreht waren ist der Lautsprecher Gehüpft und die Membranhat stark ausgeschlagen. Der Sound jedoch war, meh also mäßig. Doch dann habe ich den Lautsprecherin das Gehäuse gesteckt, obwohl die Rückseite des Woofer offen war und der Lautsprecher nichtverschraubt wurde waren die Schallwellen so vehement dass der Nachbar vor meiner Haustürstand. Wie in guten alten Zeiten! Qualitativ sieht der Verstärker O.K. aus, kein brummen!!! Standbysetzt bei 25 Minuten ein wenn kein Signal anliegt, eine 5mm Led schaltet dann von grün auf rot.Bin gerade dran das Gerät mit einer 22mm MDF Platte am Subwooferverstärker zu befestigen.Denke dass der Schalldruck sauberer und kräftiger ausfallen wird als der Originale Verstärkeres bewerkstelligen konnte.Also 300 Watt RMS oder 420 Watt Musikleistung könnten schon hinkommen.Nachtrag: Nachdem sich die Begeisterung etwas gelegt hat, der Verstärker mit einer EPDM10mm x 10mm Zellkautschuk Dichtung eingebaut wurde bleibt jetzt nur noch der Music undGaming Genuss. Der Subwoofer tritt wie ein Gaul! Abends drehe ich die Anlage natürlichleise, dabei ist mir aufgefallen dass der Verstärker abschaltet da das Eingangssignal vomDenon AVR zu schwach war. Ich habe dann am AVR den Subwoofer Pegel von 6 auf 10(Wobei 0dB dann die Mittelstellung wäre, -12dB kein Sub +12dB Maximale Signalverstärkung)erhöht und die Verstärkung am Subwoofer herunterreguliert alles I.O.Habe wieder sehr viel Spaß an Music! Wer es nicht glaubt kannden Nachbarn aus dem dritten fragen, habe eine Parterrewohnung.

Works fine and good quality , the sound is perfect