{"product_id":"puresound-l10-valve-preamplifier","title":"Puresound L10 valve preamplifier","description":"\u003cp\u003ePuresound L10 Valve Preamplifier\u003c\/p\u003e\n\u003cp\u003eThe L10 is a valve preamplifier that brings much of the design approach of the flagship L300 into a more accessible model. It combines transformer coupling with a fully valve-based power supply to deliver a stable, low-noise and musically engaging performance.\u003c\/p\u003e\n\u003cp\u003eKey features:\u003c\/p\u003e\n\u003cp\u003e• valve preamplifier\u003cbr\u003e• single-ended triode gain stage\u003cbr\u003e• output transformer coupled design\u003cbr\u003e• 4 x line inputs\u003cbr\u003e• record in \/ record out loop\u003cbr\u003e• 2 x RCA outputs\u003cbr\u003e• motorised film potentiometer volume control\u003cbr\u003e• remote control operation\u003c\/p\u003e\n\u003cp\u003eDesign and performance:\u003c\/p\u003e\n\u003cp\u003eThe L10 uses a single-ended triode amplification stage loaded by a custom wideband output transformer. This transformer steps down the signal to provide a low impedance output, allowing strong compatibility with a wide range of power amplifiers and interconnect lengths.\u003c\/p\u003e\n\u003cp\u003eSource selection is handled by a high-quality switch positioned close to the input sockets, minimising signal path length before the volume control and amplification stage.\u003c\/p\u003e\n\u003cp\u003eMaterials and construction:\u003c\/p\u003e\n\u003cp\u003e• custom-wound wideband output transformers\u003cbr\u003e• motorised film-type potentiometer\u003cbr\u003e• valve rectified power supply\u003cbr\u003e• twin choke filtered LCLC power stage\u003cbr\u003e• fully regulated filament supplies\u003c\/p\u003e\n\u003cp\u003eThe power supply is a key part of the design, using a valve rectifier and twin choke smoothing (LCLC) to provide a stable, low-noise voltage rail. This ensures consistent performance regardless of musical demand.\u003c\/p\u003e\n\u003cp\u003eSound characteristics:\u003c\/p\u003e\n\u003cp\u003e• stable and controlled presentation\u003cbr\u003e• strong dynamics without strain\u003cbr\u003e• low noise floor with good clarity\u003cbr\u003e• consistent performance across varying loads\u003cbr\u003e• smooth, natural tonal balance\u003c\/p\u003e\n\u003cp\u003eThe transformer-coupled output helps maintain signal integrity while ensuring the preamp remains unaffected by cable length or amplifier input impedance.\u003c\/p\u003e\n\u003cp\u003eBuild and usability:\u003c\/p\u003e\n\u003cp\u003eThe L10 includes a dedicated record loop for integration into more complex systems, along with remote-controlled volume for convenience. Its layout prioritises short signal paths and practical usability.\u003c\/p\u003e\n\u003cp\u003eSpecifications:\u003c\/p\u003e\n\u003cp\u003e• inputs: 4 x RCA\u003cbr\u003e• outputs: 2 x RCA\u003cbr\u003e• additional: record in \/ record out loop\u003cbr\u003e• volume control: motorised film potentiometer (remote)\u003cbr\u003e• circuit: single-ended triode with transformer output\u003c\/p\u003e\n\u003cp\u003eNote:\u003c\/p\u003e\n\u003cp\u003eThe L10 is designed to offer a balance of traditional valve sound and modern usability, with particular emphasis on power supply stability and output drive capability.\u003cbr\u003e\u003c\/p\u003e","brand":"Puresound","offers":[{"title":"Default Title","offer_id":58297878774144,"sku":"PRS-L10-VLV-PRM","price":2899.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1002\/6926\/1184\/files\/rs_w_1200_h_1200-1copy_aa78c710-8811-424e-8ef5-e14f8362c81d.png?v=1781876739","url":"https:\/\/thespinningroomhifi.co.uk\/products\/puresound-l10-valve-preamplifier","provider":"The Spinning Room Hifi","version":"1.0","type":"link"}