Audio Research LS17 SE Pre Amplifier - Black

The LS17 SE preamplifier benefits from a long tradition of exceptional preamplifier technology from Audio Research and shares many common traits with its larger peers. The Reference Anniversary has been hailed by many as the greatest preamplifier yet; it also yielded technological developments to be shared across the entire Audio Research product range.
The SE treatment of the Reference 5 SE preamplifier and Reference Phono 2 SE phono preamplifier have been applied to the LS17 SE to great success, providing the listener the ability to hear deeper into the performance and overall better musicality in a more affordable package.
The LS17 SE maintains the same physical size as its predecessor. The only cosmetic difference is the updated front panel which replaces the black plastic buttons with round metal buttons, complementing the symmetry of the two control knobs flanking the LED display. The display shows volume as well as which input is selected. Front panel controls include power, monitor, mute and processor (pass through). All functions are also accessible via the included handheld remote, and discrete remote codes are available for programming universal-style controllers. Handles finish the understated elegance of the overall appearance.
Internally the LS17 SE builds on the architecture of the LS17 and adds SE upgrades to provide exceptional performance. New Teflon coupling capacitors and other performance enhancements combine to create a preamplifier offering greater detail, spatial cues and dynamic breadth. Two 6H30 twin triodes are at the heart of the Class A audio circuit. A custom designed power transformer provides serious current delivery. In concert, the components of the LS17 SE create a sound that will truly delight the listener - this is a preamplifier dedicated to delivering a great musical experience.
The LS17 SE has seven inputs (including the processor input), two of which are balanced. There are four outputs, record and main output 1 (both single-ended) and two balanced outputs. There is also a 12 volt trigger for controlling the power of other system components. The AC power input is a 15A connection.

Frequency Response: + 0/- 3 dB, 0.5 Hz to 160 kHz at rated output (Balanced, 200 kΩ load)
Distortion: Less than 0.01% at 2 Vrms BAL output
Gain: Main output: 18 dB Balanced output (12 dB SE output). Record output: 0 dB (Processor input: 0 dB SE output)
Input Impedance: 120 kΩ Balanced, 60 kΩ SE. Inputs (7): Balanced: BAL 2, BAL 1. SE: Aux, Tuner, CD, Proc, Monitor
Output Impedance: 700 Ω Balanced, 350 Ω SE Main. 20 kΩ minimum load and 2000 pF maximum capacitance. Outputs (4): 2 main Balanced, 1 main SE, 1 Record SE
Output Polarity: Non-inverting
Maximum Input: 24 Vrms BAL, 12 Vrms SE
Rated Outputs: 2 Vrms 1 Hz to 100 kHz into 200 kΩ balanced load (maximum balanced output capability is 15 Vrms at less than 0.5% THD at 1 kHz)
Controls: Rotary volume selector (104 steps, 20 LED indicators) and rotary input selector. Push buttons: Power, Monitor, Proc, Mute. Also remote buttons: Bal 1, Bal 2, Aux, Tuner, CD
Power Supplies: Electronically-regulated low and high voltage supplies. Automatic 50 sec. warmup/ brown-out mute. Line regulation better than 0.01%
Noise: 2.2 µV RMS residual IHF weighted balanced equivalent input noise with volume at 1 (101 dB below 2 Vrms output)
Tube Complement: 2-6H30P dual triode, (Hybrid JFET/tube audio circuit, solid-state power supply)
Power Requirements: 105 - 130 Vac 60 Hz, 210 - 260 Vac 50/60 Hz) 50 watts maximum
Dimensions: 480 (W) x 305 (D) x 134 (H) mm
Weight: 5.9 kg

Turnaround

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