Pro-Ject Phono Box MM, Phono preamplifier with metal case and special low-noise ICs

Product Information

Squeeze every inch of detail from your record collection with our highest quality moving magnet and moving coil phono stage, with integrated headphone amp; the Duo Phono Preamplifier. The Phono Signature on its own sounds refined and smooth with plenty of bite when required, but adding the updated PSX-R2 power supply takes sound quality to another plane altogether. The scale is even bigger, bass gains more authority, and the precise positions of the performers and instruments in the beautifully layered sound stage are laid bare. The insightful delivery squeezes the very last drop of emotion from a recording. On a car stereo head, which has 4 (line-level) outputs for an amp (FL, FR, RL, RR), I am trying to get another stereo pair, to go into another stereo amp for a third pair of speakers. I am concerned that if I simply take one of the stereo pairs and use passive Y-connectors to get the new pair, each will be quieter, because the power would be shared across two.

Because we are always asked how to connect the equalization preamplifier or phono preamplifier, we would like to write a little guide. Note: Because these devices not only amplify but also equalize, they are also called equalizer preamplifiers. If you’ve already got a suitably talented turntable and really want to hear how good it is, this Cyrus combination is a must-buy. We love the scale of performance and the way the Vertere delivers the seismic dynamic shifts of the recording with so much enthusiasm. As with the previous generation (also an Award-winner), our main takeaway after hearing this phono stage is that it makes listening to music interesting and, where appropriate, fun. There’s not much we can ask of any piece of hi-fi beyond that. Cambridge Audio AXA 35, Cambridge Audio Edge A, Croft Phono Integrated, NAD C 316BEE, Naim Uniti AtomThis circuit is really an adaptation of the second design. The FET input stage uses the common gate mode rather than the common source one.

Here are a couple of more preamplifier circuits that may interest you. 6) Low Z (impedance) MIC Preamplifier Circuit It might be likely to attach the guitar to the (high-impedance) mic input, however that is commonly way too sensitive for the function, which leads to clipping of the guitar signal too easily.

And – is there a way to measure the output of the car stereo line outs? AC millivolts? So when I make this buffer amp, I’ve got a way to comparatively measure that it’s got a similar output?

A growing number of turntables, including many of the best budget turntables like the versatile Sony PS-HX500, come with built-in phono stages but others, like the similarly excellent Rega Planar 1, do not. This push pull action ultimately results in an overall amplification of an insignificantly small music or data input into a significantly larger output. The Pre Box RS2 Digital is a DAC and preamplifier that uses a dual-mono configuration of the highest-class D/A converters from ESS Sabre. ESS9038Q2M chips provide the highest sound quality in price-affordable, high-end circuits. Unlike most of DAC´s in this price range, the Pre Box RS2 Digital includes dual DACs and separate signal paths for the left and right channels. Also thanks to these converters, the Pro Box RS2 Digital supports up to 32-bit / 768 kHz files in PCM and DSD formats (up to DSD512) via USB, covering any digital file you can buy or stream. Prices valid in stores (all including VAT) until close of business on 28th November 2023. (Some of these web prices are cheaper than in-store, so please mention that you've seen these offers online.) Please suggest me a good quality stereo audio small signal preamplifier circuit which can work from 5 or 6 volts single supply, that would not load the set top box, preferably using good low noise op-amp with detailed circuit and parts label.The Pre Box RS2 Digital is the bigger brother of our award winning and ground breaking Pre Box S2 Digital. It uses the same excellent sounding DAC chips as the S2 version, proving once again that the Pre Box S2 Digital was already at the very top of high-end DACs and absolutely beyond its competition. Based on the same core-design principles, the feature set is extended and driven to new heights. The result is a fantastic sounding and very versatile box. The perfect partner for the cream of the crop of high-end amplifiers and speakers alike!

The higher amplitudes are processed normally and is reproduced with a potential that's approximately equal to the supply voltage, however for the lower misc amplitudes T2 is allowed to conduct at the higher ratio which is allowed to pass to its emitter. Dual tone control, presence control and volume control are offered. The circuit is designed for input levels of up to 3 V. Over this level distortion rises, but that may be, naturally, a decent outcome having guitar music. The second preamplifier design looks even simpler as it works using a single low cost JFET. The circuit diagram can be seen below. The circuit diagram is for a preamplifier that can be employed with low impedance microphones, and should give an output signal of around 500mV. R.M.S.You can read more about how we test and review products on What Hi-Fi?here. Why do I need a phono stage? Another oldie but still a goodie, the Gram Amp 2 holds its own nearly a decade after first coming on the scene. And you can see why - simplicity is the name of the game here, an approach that ages remarkably well. It's a moving-magnet phono stage with one set of inputs, one output, no bells or whistles.