Leben CS300XS
A stereo tube integrated amplifier praised for its musicality and classic design.
Overview
The Leben CS300XS is a stereo tube integrated amplifier produced by Leben, a Japanese manufacturer known for high-quality valve amplification. While exact production years are not documented, the amplifier has been offered through dealers with pricing recorded as recently as 2025. It features a quad-set of Sovtek EL84 power valves and a pair of Sovtek 12AX7 driver valves, contributing to its refined tube sound. The amplifier has earned strong praise from users and reviewers, with one noting it as "the very best amplifier I have ever heard," and another calling it a "recommended valve amp" with "superb sound at a realistic price."
Specifications
| Power output | 2x 15W RMS into 8Ω |
| Distortion | 0.7% @ 10W |
| Frequency response | 15Hz - 100kHz (-2 dB) |
| Input sensitivity | 600mV |
| Output impedance | 4 / 6 / 8 Ohms (variable) |
| Power valves | Quad-set Sovtek EL84 |
| Driver valves | Pair Sovtek 12AX7 |
Reception
The Leben CS300XS has been well received in the audiophile community, with multiple owners expressing deep satisfaction, some stating "the search is over" for their ideal amplifier. It has been described as performing "beautifully and seamlessly" with a "great retro classic style." A review from hifiplus in 2024 called it an "admirable" performer and added it to their list of recommended valve amplifiers. One Head-Fi user noted a custom version functions as both an integrated and headphone amplifier. A dissenting opinion exists but lacks detailed critique in the available source.
Market
Recent pricing data shows the Leben CS300XS listed at $3,795 USD (USA, 120V version), $4,795 USD, and £4,799 GBP (audiogold.co.uk). These reflect dealer pricing rather than original MSRP. New old stock tubes, including Telefunken 12AX7 and EL84, are available on eBay, indicating support for tube replacement and potential upgrades.
eBay Listings
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