From Rupert Neve Designs
Power You Can Trust
Power-wise, the R6 has more than 150% the required current for a 6-space chassis to prevent the power rails from failing under a higher-than-expected load. To help monitor and troubleshoot problematic modules, the R6 is equipped with LED current metering to show how much power is being used. The internal power supply itself has been carefully designed and double-shielded to avoid significant magnetic induction in any of the channel positions. With such attention to providing and monitoring power, the R6 helps your modules realize their fullest potential.
Connect Like Never Before
With a plethora of connections available, the R6backpanelispractically apatchbayonits own. The R6 features 8 channels of balanced I/O options including DB-25, XLR and TRS that may be used interchangeably. This versatility is especially handy when you are taking the R6 with you to another environment where you are unsure of the cables available, or if you need to convert DB-25, XLR or TRS connections to another format using the THRU functionality on channels 7-8.
Solid Steel Construction
The chassis is comprised of solid steel with bumpers to support the unit in both horizontal and vertical configurations, and features a collapsable handle for portability. All connectors and fittings are of the highest quality to ensure that the R6 will hold up to many years of use.
A New Level of Confidence in the 500 Series
Because the R6 is built to 500 series specifications, it will work flawlessly with any properly-designed 500 series module you wish to include in it. To help accommodate modules that are slightly out of spec, the R6 has variable-position screw holes to help make the installation process as smooth as possible. The 500 series link function can be enabled in pairs on the R6 using the link jumpers on Channels 1-2, 3-4, or 5-6. Matching blank panels are also available to cover any empty slots.
DC Voltage to Units
+/-16VDC and +48VDC for phantom power
Max Current
1000mA for modules, 150mA for 48V phantom power
Power Requirements
100-240VAC, 50/60Hz, 50 Watts
Weight
9.5lbs
Dimensions
13” long x 7.5”wide x 5.5” high
511
- Noise
- Measured at Main Output, un-weighted, 22Hz-22kHz, source impedance 150 Ohms balanced. Noise performance can vary depending on the 500 series and / or interference from stray magnetic fields.
Unity Gain Better than -103dBV
With Gain @ +66dB Better than -60dBV
Equivalent Input Noise -125dB
Frequency Response
Main output, no load Main Output +/- 0.1dBu from 10Hz to 31.5kHz -2.6dB @ 120kHz
Maximum Output Level +23dBu
Total Harmonic Distortion and Noise @ 1kHz, +20dBu output level, no load. Better than 0.0025% @ 20Hz, +20dBu output level, no load. 0.025% Typical (2nd and 3rd harmonic)
Total Harmonic Distortion and Noise with SILK engaged TEXTURE @ min
@ 100Hz, +20dBu input level, no load 0.015%, mostly 3rd harmonic (typical)
TEXTURE @ max
@ 100Hz, +20dBu input level, no load 2%, mostly 2rd harmonic (typical)
Gain Unity up to +66dB in 6dB steps. Trim continuously adjustable from -6dB to +6dB.
Phantom Power Supplied by the 500 series rack power supply. Switch selectable on faceplate.
High Pass Filter Continuously variable swept frequency from 20Hz to 250Hz.
- Slope
- 12dB/Octave
Power Requirements @ +/-16VDC 100mA
535
Threshold
A 31-position detented pot that sets the level at which compression begins, from -25dB to +20dB. Turning this control counter-clockwise will increase the amount of compression; turning it clockwise will decrease the amount of compression.
Ratio
The RATIO control has six selectable positions on a rotary switch, allowing the user to set the slope of the compressor curve with pre-selected ratios of 1.5:1 through 8:1 for levels above the determined THRESHOLD. This range of compression ratios allows the user to compress as moderately or heavily as desired.
Timing
The TIMING control is a six-position rotary switch that sets the compressor attack and release times. The timing can be further modified by the FAST button.
FAST - Fast Attack (750us), Fast Release (130ms)
MF - Medium Attack (2.25ms), Fast Release (130ms)
MED - Medium Attack (2.25ms), Medium Release (400ms)
MS - Medium Attack (4ms), Slow Release (725ms)
SLOW - Slow Attack (10ms), Slow Release (1S)
AUTO - Medium Attack (5ms), Dual Decay Release (T1 500ms, T2 1s)
Fast
The FAST switch divides the attack and release times available on the TIMING control in half, effectively doubling the number of TIMING presets available to the user.
Blend
The BLEND control has 31 detents and allows the user to mix the uncompressed (dry) signal with compressed (wet) signal. Turning the control towards 0% will shift the mix to fully uncompressed dry signal, whereas turning the control towards 100% will shift the mix to the fully compressed signal. This feature allows for parallel compression, enabling a wider range of compression subtlety.
Gain
The GAIN control has 31 detents and allows the user to add make-up gain to the compressed signal in order to bring its level back up to unity with the uncompressed input signal. It is much easier to evaluate the tonal effect of the compressor (via the COMP IN switch) when the compressed output level is matched to the uncompressed input level, thereby eliminating potentially misleading level differences.
Comp In
The COMP IN switch allows the user to audition the compression. By disengaging the COMP IN switch, the compressor is bypassed and the user can quickly compare the compressed sound to the dry input signal for an objective evaluation of the compressor’s sonic effect on the audio signal. COMP IN can be used in combination with the GAIN control to match the perceived level of the compressed audio signal with the level of the uncompressed input signal.
Link
The LINK switch allows the compressor to be linked to another 535 compressor module via a sidechain control voltage. In link mode, the compressor generating the greater sidechain voltage (resulting in higher amounts of compression) will control the compression of both audio signal paths to maintain proper stereo center image while compressing. Note: it is advisable to always audition the unlinked sound as well, to decide if the benefit of a constant stereo center image is worth the potential trade-off of reduced left / right independence in the stereo field.
Sidechain HPF
The S/C HPF switch allows the user to insert a 12dB/octave 150Hz high-pass filter in the compressor sidechain. When this filter is engaged, the compressor will be considerably less responsive to information below 150Hz. For example: if used on a drum kit, the low end of the kick drum would have less proportional effect on the compression than a snare drum or cymbals, since a significant portion of the kick drum’s dynamic energy is focused below 150Hz.
Level and Gain Reduction Metering
These two LED meters provide accurate representations of both the output level of the compressor and the amount of gain reduction being applied to the input signal.
551
Equalizer Bypassed
- Noise
- Measured at Main Output, un-weighted, 22Hz-22kHz, source impedance 40 Ohms balanced. Better than -102dBV
- Frequency Response
- Main output, no load +/- 0.1dBu from 20Hz to 31.5kHz -1dB @ 120kHz
- Maximum Output Level
- 23.25dBu
- Total Harmonic Distortion and Noise
- @ 1kHz, +20dBu output level, no load. Better than 0.0025% @ 20Hz, +20dBu output level, no load. 0.13% Typical (2nd and 3rd harmonic)
- High Pass Filter
- -2.7dB @ 80Hz Slope: 12dB/Octave
Equalizer Engaged
- Noise
- Measured at Main Output, un-weighted, 22Hz-22kHz, source impedance 40 Ohms balanced. Better than -94dBV
- Frequency Response
- Main output, no load +/- 0.25dBu from 20Hz to 45kHz -2dB @ 120kHz
- Maximum Output Level
- 23dBu
- Total Harmonic Distortion and Noise
- @ 1kHz, +20dBu output level, no load. Better than 0.009% @ 20Hz, +20dBu output level, no load. 0.13% Typical (2nd and 3rd harmonic)
Power Requirements
120mA on +16VDC 110ma on -16VDC
Free 3-Year Warranty
Sound Pure stands behind our products. Free three-year warranty on this item. Coverage exclusions live in Terms & Conditions, Section 27.
Level of support and expertise that simply isn't available at big-box megastores. Read the warranty →
Returns
Not eligible for Try Before You Buy or the 48-hour approval period. Standard return policy applies — see Terms & Conditions, Section 18 for details.
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