{"product_id":"spl-audio-phonitor-one-d","title":"SPL Audio Phonitor One d","description":"\u003cimg src=\"https:\/\/suhavimart.com\/wp-content\/uploads\/elementor\/thumbs\/SPL-Audio-Phonitor-One-d-scaled-rg79p85unvuy9fo10gd7xi7xj20z10pjd80ypc8v7k.png\" title=\"SPL Audio Phonitor One d\" alt=\"SPL Audio Phonitor One d\" loading=\"lazy\"\u003e\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\u003ch1\u003ePhonitor One d\u003c\/h1\u003e\t\t\t\t\n\t\t\u003cp\u003eThe audiophile headphone amplifier\u003c\/p\u003e\u003cp\u003ewith innovative Phonitor Matrix, 32-bit DA-converter and outstanding sound quality.\u003c\/p\u003e\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\u003cimg src=\"https:\/\/suhavimart.com\/wp-content\/uploads\/elementor\/thumbs\/SPL-Audio-Phonitor-One-d-rg79uzw6m9u4te4ia0mfyq6cpqww39wkojejsmzvgg.jpg\" title=\"SPL Audio Phonitor One d\" alt=\"SPL Audio Phonitor One d\" loading=\"lazy\"\u003e\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\u003cp\u003eMonitoring in highest sound quality with up to 32 bit and 768 kHz.\u003cbr\u003eCreate perfect mixes on headphones – thanks to the Phonitor Matrix.\u003c\/p\u003e\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\u003cimg src=\"https:\/\/suhavimart.com\/wp-content\/uploads\/elementor\/thumbs\/SPL-Audio-Phonitor-One-d-2-rg79z6abzsu30bx81wjcw0ogyux4etnlne1fxbhwxs.webp\" title=\"SPL Audio Phonitor One d (2)\" alt=\"SPL Audio Phonitor One d (2)\" loading=\"lazy\"\u003e\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\u003cimg src=\"https:\/\/suhavimart.com\/wp-content\/uploads\/elementor\/thumbs\/SPL-Audio-Phonitor-One-d-1-rg79yv04h7ns9yfsacxtp5nf03to9fh6yt5q3reh1u.webp\" title=\"SPL Audio Phonitor One d (1)\" alt=\"SPL Audio Phonitor One d (1)\" loading=\"lazy\"\u003e\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\u003cp\u003enumber one in sound\u003c\/p\u003e\t\t\t\t\n\t\t\u003cp\u003eFor us the sound is always in the foreground. When it sounds good, we like to listen. To get such a sound, you need experience and technical finesse. We have incorporated both into the Series One.\u003c\/p\u003e\u003cp\u003eThe design of the amplification stages\u003c\/p\u003e\u003cp\u003eThe preamplifier stage\u003c\/p\u003e\u003cp\u003eTwo Burr-Brown OPA 2134 SoundPlus™ operational amplifiers provide the pre-amplification. These are specially designed for audiophile circuits and are characterized by extremely low noise and minimal distortion of only 0.00008%.\u003cbr\u003eThanks to a true FET stage, the OPA 2134 achieves a slew rate of 20V\/µs, making it a high-speed operational amplifier. This has an immediate positive effect on the liveliness of the playback.\u003c\/p\u003e\u003cp\u003eIn addition, low capacitance film capacitors are installed in the signal path as bypass capacitors of the coupling capacitors, which ensures a more precise transmission of the high-frequency signal components.\u003cbr\u003eThe excellent Panasonic ‘Electric Double Layer’ gold electrolytic capacitors are used as coupling capacitors. They offer the highest storage capacity of all capacitor technologies\u003c\/p\u003e\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\u003cimg src=\"https:\/\/suhavimart.com\/wp-content\/uploads\/elementor\/thumbs\/SPL-Audio-Phonitor-One-d-3-rg7a49kntr1ojmjmrnldb4cdy8u7vsa031t5y93s2k.webp\" title=\"SPL Audio Phonitor One d (3)\" alt=\"SPL Audio Phonitor One d (3)\" loading=\"lazy\"\u003e\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\u003cp\u003eThe headphone output stage\u003c\/p\u003e\u003cp\u003eWeak sound on headphones?\u003cbr\u003eNot enough power?\u003c\/p\u003e\u003cp\u003eNot here. Phonitor One d delivers a full headphone sound – and that up to really loud.\u003c\/p\u003e\u003cp\u003eThe output stage of the headphone amplifier is designed as a push-pull amplifier in class AB mode. The bipolar transistors share the amplification of the positive and negative half-waves, which produces a higher gain and a higher output voltage than in Class A operation, where only one transistor amplifies both half-waves.\u003c\/p\u003e\u003cp\u003eThe output stage transistors are thermally coupled and thus run particularly coherently, which contributes to a consistent and stable sound image.\u003c\/p\u003e\u003cp\u003eThe power supply has a buffer circuit with low source resistance, ensuring generous current reserves even when operating low-impedance headphones.  \u003c\/p\u003e\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\u003cimg src=\"https:\/\/suhavimart.com\/wp-content\/uploads\/elementor\/thumbs\/SPL-Audio-Phomitor-d-rg7abmn5hezqhjyshmp8igfi2hzrqjyufmap0zusqo.webp\" title=\"SPL Audio Phomitor d\" alt=\"SPL Audio Phomitor d\" loading=\"lazy\"\u003e\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\u003cp\u003eThe Revolution: Phonitor Matrix\u003c\/p\u003e\u003cp\u003eThe Phonitor Matrix is the revolution in the headphone amplifier.\u003c\/p\u003e\u003cp\u003eIt enables mixing and mastering engineers to create perfect mixes on headphones, which will translate perfectly to all types of stereo speaker systems.\u003c\/p\u003e\u003cp\u003eWith the Phonitor Matrix, you can create mixes on headphones that sound just like on speakers.\u003c\/p\u003e\u003cp\u003eBut the Phonitor Matrix is not only designed for professional use in the studio.\u003cbr\u003eIt also enables the hifi enthusiast to enjoy music on headphones, like if it was played back on speakers.\u003c\/p\u003e\u003cp\u003eHow is this possible?\u003c\/p\u003e\u003cp\u003eMusic is normally produced and mixed for playback on stereo speakers.\u003c\/p\u003e\u003cp\u003eListening on headphones is different from listening on loudspeakers. The biggest difference is the lack of crossing signals of the sound signal from the left speaker to the right ear and from the right speaker to the left ear.\u003c\/p\u003e\u003cp\u003eThese crossing signals are missing in conventional headphone listening, because there are no signals crossing from one side of the headphones to the other. This results in an unnaturally wide stereo stage and sound sources are not played back at their correct position in the stereo spectrum.\u003c\/p\u003e\u003cp\u003eThe SPL Phonitor Matrix can correct this false stereo image with an analog circuitry.\u003c\/p\u003e\u003cp\u003eThe Phonitor Matrix parameters\u003c\/p\u003e\u003cp\u003eThe two main parameters of the Phonitor Matrix are Crossfeed and Angle:\u003c\/p\u003e\u003cp\u003e• Crossfeed determines the crossing signals of the channels.\u003cbr\u003e• Angle determines the opening angle of the stereo image.\u003c\/p\u003e\u003cp\u003eThe “Crossfeed” parameter of the Phonitor One is continuously adjustable via the crossfeed control.\u003cbr\u003eThe “Angle” parameter is fixed at the studio standard of 30°.\u003c\/p\u003e\u003cp\u003eTo perfect the listening experience, the level of the sound sources centered in the stereo image must be attenuated when the Phonitor Matrix is activated. The result is that not only the position of all sound sources is correctly located, but also their volume. \u003c\/p\u003e\u003cp\u003eFor the Phonitor One, this parameter, which we call “Center” for the Phonitor Matrix, is fixed at a -1 dB cut, which is the best choice for an authentic representation of the soundstage.\u003c\/p\u003e\u003cp\u003eDuring conventional listening on headphones, our brain can compensate a certain level of false playback representation – but this is very exhausting and leads to listening fatigue.\u003c\/p\u003e\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\u003cimg src=\"https:\/\/suhavimart.com\/wp-content\/uploads\/elementor\/thumbs\/Screenshot-2025-12-15-223149-rg7aghh4slnhm3qt50w9iafg1m3y90ie81b06uomww.webp\" title=\"Screenshot 2025-12-15 223149\" alt=\"Screenshot 2025-12-15 223149\" loading=\"lazy\"\u003e\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\u003cp\u003eFree choice – three stereo inputs \u003c\/p\u003e\u003cp\u003eThe Phonitor One d offers two analog stereo inputs (TRS and RCA) and one digital (USB).\u003c\/p\u003e\u003cp\u003eA computer, tablet or smartphone can preferably be connected via USB.\u003c\/p\u003e\u003cp\u003eInput devices with an analog output signal, such as CD players, mixers, synthesizers or an analog tape machine\/tape deck, can be connected balanced (TRS jacks) or unbalanced (RCA) at the analog line inputs. \u003c\/p\u003e\u003cp\u003eThe best is just good enough – 32-bit DA-converter\u003c\/p\u003e\u003cp\u003eOf course, no compromises were made with the converter chip either. For example, the Phonitor One d also uses the premium AK4490, 32-bit DAC with AKM’s Velvet Sound® – just like our bigger DACs.\u003c\/p\u003e\u003cp\u003eThis technology makes the finest details audible thanks to its low-distortion architecture.\u003c\/p\u003e\u003cp\u003eIt supports sampling frequencies up to 768 kHz PCM (16x CD resolution) and DSD (Direct Stream Digital) playback up to DSD4 or DSD256 (11.2 MHz) resolution.\u003c\/p\u003e\u003cp\u003eThe Phonitor One d automatically synchronizes to the sampling rate applied to the USB input. No further settings on the device are necessary.\u003c\/p\u003e\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\u003cimg src=\"https:\/\/suhavimart.com\/wp-content\/uploads\/elementor\/thumbs\/Screenshot-2025-12-15-223646-rg7aokv3md4lwwafjxg6q4cg9rytbrv076ldxipybk.webp\" title=\"Screenshot 2025-12-15 223646\" alt=\"Screenshot 2025-12-15 223646\" loading=\"lazy\"\u003e\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\u003cp\u003eA Great Connection\u003c\/p\u003e\u003cp\u003eThe USB connection is Class Compliant. This means that all Mac computers and iOS devices like iPads and iPhones can use the full performance of the DA-converter without driver installation.\u003c\/p\u003e\u003cp\u003eiOS devices require the “Apple camera adapter”.\u003c\/p\u003e\u003cp\u003eFor Windows, a driver is only required if higher sampling rates are desired. The driver is available for download at the bottom of this page.\u003c\/p\u003e\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\u003cimg src=\"https:\/\/suhavimart.com\/wp-content\/uploads\/elementor\/thumbs\/SPL-Audio-Phonitor-One-d-4-rg7atq1b0q7a06vz4vy07pcohvsgp6zsdhqqhl2hvk.webp\" title=\"SPL Audio Phonitor One d (4)\" alt=\"SPL Audio Phonitor One d (4)\" loading=\"lazy\"\u003e\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\u003cp\u003eLine Out\u003c\/p\u003e\u003cp\u003ePhonitor One d is not only a headphone amplifier but also a stand-alone DAC! The signal selected in the input section is output unchanged at the line output “Line Out”.\u003c\/p\u003e\u003cp\u003eThe line output has unity gain, which is a normal, unregulated output level – it is independent of the volume control for the headphone amplifier.\u003c\/p\u003e\u003cp\u003eThus, the Phonitor One d can also be used as a state-of-the-art DA-converter, which recommends it for a series of other tasks.\u003c\/p\u003e\u003cp\u003eThis signal can be routed to a monitor controller, for example.\u003c\/p\u003e\u003cp\u003eOr multiple users can listen in via additional headphone amplifier (e.g. Phonitor One) connected to the Line Out.\u003c\/p\u003e\u003cp\u003eThe Phonitor One d can also be easily looped into a monitoring chain without the need for another output at the playback source.\u003c\/p\u003e\u003cp\u003eBut you can also record the signal analog or send it to a mixer for further processing.\u003c\/p\u003e\u003cp\u003eThere are no limits to creativity here.\u003c\/p\u003e\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\u003cimg src=\"https:\/\/suhavimart.com\/wp-content\/uploads\/elementor\/thumbs\/Screenshot-2025-12-15-224506-rg7b1muekekncmk06ccmjmxw2lgjvojzpvxa7dbw1s.webp\" title=\"Screenshot 2025-12-15 224506\" alt=\"Screenshot 2025-12-15 224506\" loading=\"lazy\"\u003e\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\u003cp\u003ePower Supply\u003c\/p\u003e\u003cp\u003eGood sound always starts with the power supply. This is where you lay the foundation for the performance of the entire device. Although we “only” supply a 12 V plug-in power supply unit, the secondary power supply inside generates a voltage level of +\/-17 Volts for the analog audio sections with which professional levels of up to +22.5 dB can be achieved!\u003c\/p\u003e\u003cp\u003eAn elaborate low-drop operating voltage regulation provides more “juice” and regulates cleanly even when the maximum operation voltage is reached.\u003c\/p\u003e\u003cp\u003eThe Phonitor One delivers full power when used with the included 1.5 A power supply.\u003c\/p\u003e\u003cp\u003eJust switch it on and enjoy the great sound. The ON-switch puts the Phonitor One into operation.\u003c\/p\u003e\u003cp\u003eNumber One in Sound\u003c\/p\u003e\u003cp\u003eWith the Series One – just as with all other SPL devices – we develop not only according to plan, but also by ear from the very beginning.\u003c\/p\u003e\u003cp\u003eMany important components are installed on the circuit boards using Through-hole technology. This way we can ensure that we can use the best sounding components.\u003c\/p\u003e\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\u003cimg src=\"https:\/\/suhavimart.com\/wp-content\/uploads\/elementor\/thumbs\/SPL-Phonitor-rg78wy6f9n0n93x0z9kc0b7sj3flf7payaq8lpqfwg.jpg\" title=\"SPL Phonitor\" alt=\"SPL Phonitor\" loading=\"lazy\"\u003e","brand":"Sur Sargam","offers":[{"title":"Default Title","offer_id":52663879729449,"sku":null,"price":92380.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0682\/0750\/9801\/files\/SPL-Audio-Phonitor-One-d-3.jpg?v=1770878565","url":"https:\/\/sursargam.com\/products\/spl-audio-phonitor-one-d","provider":"Sur Sargam","version":"1.0","type":"link"}