Circle Labs
V1000 Phono Preamplifier
Circle Labs V1000 Phono Preamplifier
Product Overview:
The Circle Labs V1000 Phono Preamplifier is a high-performance phono stage designed for both Moving Coil (MC) and Moving Magnet (MM) cartridges, offering audiophiles a premium solution for vinyl playback. Featuring Circle Labs’ proprietary design philosophy, this phono preamp showcases cutting-edge technology with a focus on custom craftsmanship over mass-produced components.
The MC section of the V1000 is enhanced by a custom-made step-up transformer (SUT) created entirely in-house from scratch. This SUT utilizes Litz wire with a silk braid isolation for the primary winding, and high-purity copper wire for the secondary, ensuring minimal signal loss and maximum fidelity. The low resistance (0.25 Ohm/22 Ohm) achieved in this configuration allows for pristine audio reproduction from your cartridges.
Key Features:
- Exclusive Step-Up Transformer: Hand-made and designed from scratch, the V1000’s SUT uses innovative materials and craftsmanship to enhance MC cartridge performance.
- Ecc88/6922 Valve Design: The MM preamp section uses dual ecc88/6922 valves per channel for rich, dynamic sound. The circuit operates with zero negative feedback for the purest signal integrity.
- Dual Mono Construction: Independent and fully isolated circuits for left and right channels, ensuring a clean, noise-free signal path.
- Power Supply: Equipped with Mundorf polypropylene capacitors and a two-stage cascade-type stabilizer with zero feedback, housed in a separate enclosure to minimize interference.
- Adjustable Curves & Custom Settings: The front panel offers easy adjustments for RIAA curves, MC/Mute/MM switching, input selection, and impedance/capacitance settings. Users can also apply custom equalization for non-standardized recordings.
- Dual Input Support: The V1000 supports two independent inputs, ideal for audiophiles with multiple turntables or tonearms, with adjustable impedance and capacitance for each input (10-1000 Ohm impedance, 0-320 pF capacitance).
Performance:
Designed for the discerning vinyl enthusiast, the Circle Labs V1000 Phono Preamplifier delivers stunning detail, expansive dynamics, and warm, authentic sound. It captures the true essence of your vinyl collection, allowing every nuance to shine through, whether you’re using an MC or MM cartridge.
For vinyl lovers seeking the ultimate phono stage, the Circle Labs V1000 Phono Preamplifier offers unbeatable sound quality, custom adjustability, and hand-made craftsmanship, making it a standout choice for any high-end audio setup.
Reviews
High Fidelity News
The signal from the SUT goes to the MM preamplifier section based on ECC88/6922 tubes (4 pcs.) with constant polarization using cells. The whole works completely without feedback. The device has a 100% dual mono design with independent and isolated circuits for the right and left channels.
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