The R370HD active subwoofer provides a new dimension to a system’s sound. Its 255mm (10”) C-CAM® downward firing driver, powered by a potent 250W (RMS) Class D amplifier, will extend the reach of the RadiusHD satellites to add the deepest drama to movies and music.
The R370HD’s lowest frequencies are controlled so expertly that even subtle effects are better defined, enhancing the listening experience with bass you can feel as well as hear. The R370HD is equipped with a top-mounted control panel for easy access to volume and 2 EQ settings, 12V trigger input for power on/standby control from an AV amplifier, variable crossover control from 40Hz-120Hz, stereo, LFE RCA inputs and link outputs.
- Top mounted control panel - for easy access to volume and EQ settings.
- 18mm MDF cabinet construction with internal bracing
- 250W RMS Class D amplifier with switching power supply
- Downward firing 10” Ultra long throw, C-CAM bass driver.
- 12 Volt trigger input – For power on/ standby control from AV amplifier.
- Crossover/ frequency control. Variable from 40z-120Hz
- Low pass filter switch – for LFE or Stereo input selection
- 0-180 Phase switch
- Power switch with ON – Auto- Off/ trigger settings
- Stereo/ LFE RCA inputs
- Stereo/ LFE link outputs
- Silicone rubber anti-resonance feet
- 2 x Pre-set EQ settings – for Music or video programme optimisation.
Low Frequency Limit
28 Hz (EQ1)
25 Hz (EQ2)
Upper Frequency Limit
40 - 120 Hz Variable
Low Pass Filter Alignment
12dB / Octave variable
+12dB / Octave fixed (2 stage)
Sealed Cabinet of 18mm (3/4) M.D.F. construction
Amplifier Output (RMS)
Class - D Digital amplifier
1 x 10" C-CAM® subwoofer driver
Mains Input Voltage (factory preset)
110 - 120 Vac / 220 - 240 Vac
External Dimensions (H x W x D): mm (inches)
370 x 320 x 320
(14 9/16 x 12 5/8x 12 5/8)
11.87 (26 1/8)
Radius HD 5.1 System Review
“The degree to which the slender R270HD towers and compact sub opened up my room was astonishing. I saw portions of my walls I haven’t seen in two years.”
“I was immediately struck by the clarity and crispness of the Radius HD’s tweeters. Delicate high frequency sounds like the glass breaking as the Comedian goes through the window in the opening scene and the water rushing off Nite Owl’s Owlship were extremely detailed, without being overbearing, sharp or piercing.”
“The R225HD centre channel in particular impressed me, delivering true, natural sounding dialogue, without any of the characters sounding boxed-in or tinny.”
“…very even, consistent sound field, with panning sounds being extremely consistent and not changing in tone as they moved around the room.”
“The level of detail the Radius HDs displayed, especially in the high frequencies, really brought the award-winning mix of music and effects present in this album to life.”
“…if I had been wearing a blindfold during testing, not once in a million years would I have guessed that these speakers were as small as they actually were. I found their performance to be impressive both with music and film.”
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The Gold 300 has been included in The Absolute Sound's 2017 Buyer's Guide for Floorstanding Loudspeakers.