The Rane HC 6S is one of the most indispensable products in today’s audio industry. Featuring six stereo headphone amplifiers, the HC 6S performs a number of necessary tasks, not all of which are headphone related.
The HC 6S provides Master stereo Inputs which can be used to drive any or all of the 6 stereo headphone amplifiers. A Mono switch is provided on the front panel to drive both channels of all 6 amplifiers from a common mono source. Six individual unbalanced stereo Inputs are available to drive any individual amplifier from a separate stereo source. These Inputs can be converted to mono balanced Inputs through internal jumpers if required. Outputs for all six channels are provided on the front panel and on the rear panel so that headphones may be connected on either side based on the requirements of a given installation. Two pairs of headphones may be driven from each channel, one pair connected to the front and one to the rear.
The HC 6S is capable of delivering up to 500 milliwatts into headphones with rated impedances between 32-600 ohms. The precise amount of power depends on the exact impedance of the headphone in use and the number of headphones connected to the unit. Under most conditions, the HC 6S produces sound pressure levels in excess of 120 dB. This level is more than adequate for most listeners.
Features
- 6 Independent Stereo Headphone Amplifiers
- Master Balanced/Unbalanced Stereo Inputs with Master Level
- Six Unbalanced Stereo Inputs
- Front and Rear Output Jacks
- Six Output Level Controls
- Stereo/Mono Switch
- Internal Universal Power Supply (100-240 VAC)
HC 6S Headphone Amplifier
| Parameter | Specification | Limit | Units | Conditions/Comments |
| Power Output: | 1 Channel Driven | Max average rms power, 20-20 kHz |
| | 500 | 5% | mW | 32 Ω headphones |
| | 500 | 5% | mW | 50 Ω headphones |
| | 500 | 5% | mW | 100 Ω headphones |
| | 300 | 5% | mW | 200 Ω headphones |
| | 200 | 5% | mW | 300 Ω headphones |
| | 120 | 5% | mW | 600 Ω headphones |
| | 6 Channels Driven | | | |
| | 250 | 5% | mW | 32 Ω headphones |
| | 250 | 5% | mW | 50 Ω headphones |
| | 250 | 5% | mW | 100 Ω headphones |
| | 200 | 5% | mW | 200 Ω headphones |
| | 100 | 5% | mW | 300 Ω headphones |
| | 120 | 5% | mW | 600 Ω headphones |
| (Note: Above values produce loudness levels of 120 dB in most headphones) |
| Headphone Impedance Range | 32-600 | 10% | Ω | For best performance |
| Inputs: Type | Active Balanced/Unbalanced | | | |
| .....Connectors | 1/4" TRS | | | Balanced |
| .....Impedance | 20k | 1% | Ω | |
| .....Maximum Level | +20 | 1 | dBu | |
| Outputs: Type | (6) Stereo Amplifiers | | | (6) Outs front + (6) Outs rear |
| .....Connectors | 1/4" TRS | | | Tip = Left, Ring = Right |
| .....Impedance | 0.25 | typ. | Ω | Headphone Outputs |
| Overall Gain Range | Off to +20 | 1 | dB | |
| LED Threshold: Signal Present | -20 | 1 | dBu | Input Level |
| Ultrasonic Filter | 20 kHz, 6 dB/octave | 5% | Hz | Linear phase |
| Frequency Response | 20-20 kHz | +0/-3 | dB | |
| THD+Noise @ 1 kHz | 0.002 | .002 | % | 150 mW / 200 Ω |
| THD+Noise 20-20 kHz | 0.02 | .01 | % | 150 mW / 200 Ω |
| IM Distortion (SMPTE) | 0.03 | .01 | % | 60 Hz / 7 kHz, 4:1, 150 mW / 200 Ω |
| Signal-to-Noise Ratio | -96 | 2 | dB | re 150 mW / 200 Ω, A-weighted |
| Mean Time Between Failure | 20,500 | | Hrs | Mil Hdbk-217D, Section V |
| Unit: Agency Listing | | | | UL/cUL/CE |
| .....Line Voltage | 100-240 VAC, 50/60 Hz | | VAC | 12W Max Power |
| Unit: Construction | All Steel | | | |
| .....Size | 1.75"H x 19"W x 5.3"D | | (1U) | (4.4 cm x 48.3 cm x 13.5 cm) |
| .....Weight | 5 lb | | | (1.9 kg) |
| Shipping Size | 4.25" x 20.3" x 13.75" | | (1U) | (11 cm x 52 cm x 35 cm) |
| .....Weight | 9 lb | | | (4.1 kg) |
| Note: 0 dBu = 0.775 Vrms |
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