| Samson S-phone
4 Channel Stereo Headphone Amplifier
The S-phone is a compact, high-quality device that allows you to monitor any stereo or monophonic source signal (balanced or unbalanced) over as many as twelve separate headphones. Providing unusually high power levels and superb audio fidelity, the S-phone is compatible with virtually all popular headphone models. Front panel controls include a Master Input Level control and Stereo/2 Channel switch. Each headphone output has its own individual HIGH & LOW Frequency EQ, an Insert jack, and Level control. Special output jacks on the rear panel allows any number of S-phone units to be linked together with no loss of signal. The S-phone can be used in a wide variety of applications, including recording studios, teaching labs, broadcast environments, and for live performance.
The S phone is a versatile single rack space four channel headphone amplifier, loaded with advanced features that provide tremendous flexibility for monitor and cue mixing. The Master Input features an input level and LED meter to control and display the overall stereo input. Each of S phone's four channels includes three Headphone Outputs with an overall Volume control and individual Level meters. A convenient Stereo Auxiliary input is available on each channel so that individual line signals from direct or buss outputs can be mixed with the main stereo input.
The Balance control adjusts the ratio of the Main and Auxiliary signal or the left to right balance (based on the setting of the ST/2CH switch) so that each headphone mix can be further tailored for a particular listener's individual needs ("More Me"). For greater sonic control, S phone also features a 2-band equalizer on each of the four channels. A master Stereo Aux input on the front panel is also supplied for inserting a second signal to all headphones.
Features
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Four channel headphone mixer amplifier.
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Three headphone outputs; two rear, plus one front panel output per channel.
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Two master stereo inputs with balance control.
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Dual band equalizer on each channel.
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5 segment LED meter on each channel plus master.
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Auxiliary input, with level control, on each channel for "More Me" mixing.
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Stereo or dual input mode and mute switches on each channel.
- Maximum output power on each channel regardless of headphone impedance.
Specifications
Master Section (Rear Panel)
Input: 2 TRS Balanced 1/4" (Left-Right) or (Left mono)
Impedance: 15 k Ohms balanced
Max. input level: +26 dBu balanced
CMRR: Min 40dB, >55 dB @ 1 kHz
Master Section (Front Panel)
Master Volume control: 0 - 10
Master Level Meters: 5 Segment LED (–30 to Clip)
Master Inject: 1/4" TRS jack (Left-Right)
Link Output
Connectors: 2-1/4" TRS Balanced (Left-Right) Parallel to Main Input
Max Output Level: Matches Main Input
Channels
AUX IN Connectors: 1/4"TRS jack (Left-Right)
Impedance: 10 k Ohms unbalanced
Max. input level: +21 dBu unbalanced
Level Meters: 5 Segment LED (–30 to Clip) (load compensating)
Channel Controls: Mute Switch, ST/2CH Switch, Volume Control Balance Control
High Frequency EQ: +/- 12dB @ 10KHz Shelving
Low Frequency EQ: +/- 12dB @ 100Hz Shelving
Outputs: 3 - 1/4" TRS (Left-Right) Headphone outputs per Channel
Max. output level: 140 mW at 32 ohms, 385mW at 66 ohms.
Impedance: minimum 8 Ohms
Global Specifications
Frequency response: 10 Hz to 32 kHz, +0/- 3 dB
Noise: > 90 dB, unweighted, 22 Hz to 22 kHz
THD: 0.008 % typ. @ +4 dBu, 1 kHz
Power Supply
Mains Voltages USA/Canada: 105-125 VAC ~, 60 Hz
Mains Voltages Europe: 215 – 254 VAC~,50Hz
Power Inlet: Standard IEC receptacle / with fuse
Power Consumption: 29 Watts Max.
Physical
Dimensions: 1 3/4" (44.5 mm) * 19" (482.6 mm) * 8 1/2" (217 mm)
Net Weight: 5.5lbs., (2.5 kg)
Shipping Weight: 8lbs., (3.6 kg)
*1 Year Manufacturer's Warranty
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