
( Brand: Audio Research ), ( Model: LS-7 ), ( Type: Preamplifier ), ( Country/region Of Manufacture: United States )
The Audio Research LS-7 Vacuum Tube Preamplifier is an exquisite piece of audio engineering, meticulously crafted to deliver an unparalleled listening experience. This preamplifier is housed in a beautifully crafted aluminum chassis, boasting a timeless design that will grace any high-end audio system.
At the heart of the LS-7 is a completely hand-selected and hand-wired vacuum tube circuit, which includes six 12AX7 tubes and two 12AT7 tubes. This tube configuration, coupled with Audio Research's proprietary circuit design, ensures a rich, warm, and detailed sound that is unmatched by solid-state preamplifiers.
The LS-7 features a high-quality, 24-bit/192kHz AKM DAC, allowing for seamless integration with digital sources. The DAC is controlled by an external clock, which minimizes jitter and improves overall sound quality. The preamplifier also includes a phono stage, which can be easily enabled or disabled, making the LS-7 a versatile choice for both digital and vinyl enthusiasts.
The LS-7's volume control is a high-quality, low-noise, stepped attenuator, ensuring precise volume adjustments without any loss of signal quality. The preamplifier also includes a balanced XLR output, as well as single-ended RCA outputs, providing flexibility for connecting to a wide range of audio systems.
The Audio Research LS-7 Vacuum Tube Preamplifier is a testament to the art of audio engineering. Its handcrafted design, vacuum tube circuitry, and high-quality components work together to create an audio experience that is truly sublime. Whether you're a seasoned audiophile or a discerning music lover, the LS-7 will transport you into a world of sound that is both captivating and enchanting.
To fully appreciate the LS-7, we recommend watching the video demo. This will give you a glimpse into the preamplifier's stunning design, as well as an opportunity to hear its incredible sound quality for yourself. With the LS-7, every note, every timbre, and every nuance of your music will come alive in a way that only a true high-end audio component can achieve.
Pros of buying a Audio Research LS-7 Vacuum Tube Preamplifier:1. Warm and rich sound: The LS-7 is known for its warm, analog sound that is often associated with vacuum tube amplifiers. It can add a pleasant and musical quality to your music.
2. High-end construction: The LS-7 is built with high-quality materials and components, including custom-wound transformers, hand-selected capacitors, and high-grade vacuum tubes. This results in a durable and reliable preamplifier that can provide many years of service.
3. Flexibility: The LS-7 has multiple input and output options, including balanced and unbalanced inputs and outputs, as well as a phono stage for turntables. This makes it a versatile preamplifier that can work well with a variety of audio sources and systems.
4. Customization: The LS-7 allows for tube rolling, which means you can experiment with different types of vacuum tubes to find the sound that best suits your preferences.
Cons of buying a Audio Research LS-7 Vacuum Tube Preamplifier:1. Price: The LS-7 is a high-end preamplifier, and its price reflects that. It may be beyond the budget of some audio enthusiasts.
2. Tube maintenance: Vacuum tubes require regular maintenance, including replacement every few years. This can add to the overall cost of ownership of the LS-7.
3. Size: The LS-7 is a large and heavy preamplifier, which may not be ideal for those with limited space or mobility.
Conclusion:The Audio Research LS-7 is a high-end vacuum tube preamplifier that offers a warm and rich sound, high-end construction, and flexibility. However, its price, tube maintenance, and size may be cons for some. If you are an audio enthusiast who values a rich and musical sound, and are willing to invest in a high-quality preamplifier, the LS-7 may be an excellent choice for you.
Recommendation:If you are interested in the LS-7, I recommend doing your research and listening to it in person if possible. Audio is a highly subjective experience, and what sounds great to one person may not sound great to another. By listening to the LS-7, you can determine if its sound matches your personal preferences and if it is worth the investment. Additionally, I recommend considering the cost of tube maintenance and the space required for the LS-7 before making a decision.
It will arrive working as described and in the cosmetic condition shown pictures.
4 cm standard rack panel x. It comes with the original Audio Research double box shipping cartons. The LS-7 preamp has a very appealing straightforward design and was highly reviewed.
01 at 2v RMS output. 5db, in Midland noise hum:15 v RMS maximum UHF weighted at main output with gain control minimum more than 102db below 2v gain: 13db unbalanced input impedance: 100k ohms.
If you appreciate the natural-sounding music reproduction of vacuum tubes, ls7 features straightforward all-tube circuits that deliver rich, satisfying sound and world-renowned Audio Research construction. 1hz and above 300khz distortion Thad: less than. Shipping price is based on location. This is an Audio Research LS-7 vacuum tube preamplifier in excellent cosmetic condition and perfect working.
This is a line stage only preamp that uses four type vacuum tubes. Output impedance:200 ohms main. 01 tube complement: e88cc dual treetop requirements:100-135vac 60hz 200-270vac 50 25 watts minimum dimensions: cm w x handles extend the face plate is excellent with no defects. Its a down-to-earth component design that is capable of stunning musicality.
8 cm forward of front panel. My packing of items is bullet-proof. Recommended load 60k ohms and 100pf 20k minimum 1000pf maximum rated outputs:2v RMS 1hz to 100khz, all outputs, ohm output 25v at 1/2 Thad into 100k power supplies:electronically-regulated low high voltage supplies.
I love the simplicity, with power, volume, select, mute, a green light that tells you its on and that's it. The chassis is also in great shape with no scratches. 0hz to 100khz 3db points below 0.