Leema Acoustics is a smaller UK-based model that has been manufacturing high-end audio for nearly 25 years and while it doesn’t have an enormous following right here in North America, issues are hopefully about to alter. In case you are in search of a extra inexpensive path into higher sound high quality at dwelling, their merchandise most definitely benefit a hear.
Tip: Though Leema began with loudspeakers, they aren’t presently a part of their product combine.
The Quantum Assortment
Constructing on its success, Leema Acoustics has introduced the primary two entries in its new Quantum Assortmentthe Neutron Preamp/DACand Graviton Energy Amp.
Notice: Leema Acoustics has not posted official product pages for the Quantum Assortment because the publication date of the article.
The Quantum assortment is the primary new Leema Acoustics vary in over a decade and has been totally designed, engineered, and constructed within the Welshpool manufacturing facility in Powys, Wales, overseen by Leema Acoustics’ co-founder and ex-BBC sound engineer, Lee Taylor.
The Quantum line borrows from Leema’s flagship Constellation Collection and has been repackaged to enhance affordability. The casework is easier, single transformers exchange multi-transformers, and the board meeting has been simplified with no lack of part high quality.
The circuit boards are manufactured at Leema’s UK manufacturing facility, which controls high quality at a focused value level. The vast majority of the PCB (Printed Circuit Board) elements are shared with the Constellation collection permitting economies of scale to learn the brand new Quantum vary straight.
Neutron Preamp

The Neutron preamp is constructed on Leema Acoustics’ 25-year UK hi-fi manufacturing expertise. The Neutron is designed to be an inexpensive audio ‘hub’. It supplies as a lot transparency as doable whereas providing flexibility with 13 inputs. The Neutron introduces Leema Acoustics’ newest circuit designs, that includes reference-standard low crosstalk for enhanced transparency.
The Neutron gives a high-quality switchable MM/MC phono stage. The preamp additionally options a complicated asynchronous ESS 24-bit/192 kHz USB DAC, a devoted headphone amplifier, plus a high-end Burr-Brown analog quantity management.

The Neutron additionally contains 13 assignable inputs:
Outputs embody:
- 1 x Fastened-level report
- 2 x Subwoofer
- 1 x Headphone (high-quality devoted headphone amp)
- 1 x 12 V set off.
Graviton Energy Amp

The core of the Leema Graviton stereo energy amplifier is what they declare is the largest toroidal energy provide seen at its value level! This allows the amp to deal with any room situations and audio system you possibly can by way of at it.
The Graviton incorporates a Class A/B design, offering 150 watts per channel into 8 ohms and 260 watts into 4 ohms. For added help, the Graviton deploys six output transistors per channel for vast dynamic capability mixed with unforced sonic element.
From Leema’s co-founder Lee Taylor: “Quantum takes a lot of the Leema Acoustics’ Constellation product design, but simplified to satisfy a extra inexpensive value level. Nonetheless, no compromises have been made the place it counts: The Neutron’s onboard phono stage is cloned straight from the award-winning Necessities Phono, USB is dealt with by way of an XMOS interface fairly than the Leema M1 module, sign switching is by way of gold-palladium relays, not strong state, plus quantity is regulated by way of an analog resistor ladder; Leema Acoustics has used this technique for practically 25 years…The Graviton has an over-specified single transformer provide and 6 matched Toshiba output transistors per channel, permitting excessive instantaneous present supply for superior transient functionality and long-term reliability. Twin speaker binding posts are included to permit simple bi-wiring, plus line degree loop through-outputs for bi-amping.“

End Choices
All Quantum-range gadgets incorporate UK-made casework in brushed black or silver finishes, with strong aluminum precision-machined entrance panels and management dials.
Pricing and Availability
Each objects may be purchased collectively for £2,800, or individually on the following costs by way of licensed UK Sellers and Worldwide Distributors.
- Leema Acoustics Neutron Pre-Amplifier – £1,500
- Leema Acoustics Graviton Energy Amplifier – £1,500
U.S. value and availability TBD.