Occupying just 13.5 cm wide with its footprint, the RHODIUM 400 manages to unleash a festival of sound thanks, in-part, to its high performance membranes. You completely forget about its compact dimensions very quickly. Rich basses, clear highs, and all packaged by clean lines that run through the entire series. A truly fine floor-standing speaker.

Type 2-way
Design principle bass reflex
Nominal/music power (W) 100/150 W
Frequency response (Hz) 38...38.000 Hz
Crossover frequency (Hz) 3.100 Hz
Efficiency (dB/1W/1m) 86 dB
Impedance (Ohm) 4
Tweeter 25 mm Ø Aluminium dome
Woofer 2x 135 mm Ø
Size (w x h x d) in cm 828 x 135 x 232 mm
Socket Ø (cm) 21 x 250 x 205 mm
Weight in kg 11,00 kg


400 - Schwarz seidenglanz
400 - Schwarz seidenglanz
400 - Weiß seidenglanz
400 - Weiß seidenglanz

in the test, 10/2016


More captivating than reality

This is the headline of the current RHODIUM/PHASE test in the Lite magazine. The discreet 5.1 set consisting of 2x RHODIUM 400, 1x 100 RHODIUM 100 BASE, 2x PHASE 150 and the QUBE 8 subwoofer convinced the test editors, as can be seen from the test mark of 1.0 (top class). The conclusion: "Smaller living spaces quickly appear overloaded with a 5.1 system and forfeit fast the living atmosphere with bulky and plain speakers. However, limited space and high demands on optics is not the end for a surround system, as quadral proves with its visually appealing combination of its Rhodium and Phase series. Particularly the white finish is doing very well in tight spaces and sonically the quadral setup leaves nothing more to be desired anyway. With the "small" Rhodium ensemble quadral offers no less than home theater sound at the highest level."

Read here the complete test from 02 October 2016

HI-FI World UK

HI-FI World UK, Dezember 2015


„To say the quadral RHODIUM 400s punch well above their weight would be an understatement. They give a big sound from a small cabinet, are easy to drive, detailed and musically infectious – all for just £ 895. They never failed to prove enjoyable with all forms of music and put a big, fat grin on the face of everyone who heard them.

You’d have to go a long way to find a loudspeaker as good at, or anywhere near the price, given their range of abilities.

In fact, I was rather sorry to see them leave the listening room at the end of their stay.“

OUTSTANDING - amongst the best

„Einfach zu sagen, die RHODIUM 400 würden über ihre Gewichtsklasse hinauswachsen, wäre eine Untertreibung. Sie bieten großen Sound aus einem kleinen Gehäuse, sind einfach zu bespielen, detailliert und musikalisch ansteckend – und das alles für nur £ 895. Nie sind sie den Beweis schuldig geblieben, unterschiedlichste Musikstile genussvoll abspielen zu können – sie zaubern jedem, der sie gehört hat, ein fettes Lächeln ins Gesicht. Man muss schon lange suchen, um einen so guten Lautsprecher in dieser oder einer ähnlichen Preisklasse zu finden.

Ich war wirklich ziemlich betrübt als sie den Hörraum wieder verlassen mussten.“

Urteil: HERAUSRAGEND, unter den Besten!

Five of five Globes

(übersetzt von quadral)