Why a Dedicated Phono Preamplifier Matters
A phono cartridge produces one of the smallest signals in all of audio, and that tiny signal also needs the RIAA equalization curve applied to it before it can be amplified like any other source. That is the entire job of a phono preamplifier, and doing it with low noise and accurate equalization is what separates a merely functional stage from one that lets your records breathe. Parasound has built its reputation in this category on quiet, accurate, musically honest circuits, and both models we carry share that same design intent.
Specifications compared
| Specification | JC3+ | XRM |
|---|---|---|
| Design | John Curl designed Halo series phono preamplifier, dual mono | — |
| Cartridge Support | Moving magnet and moving coil | MM and MC |
| MM Gain | 40 dB (unbalanced), 46 dB (balanced) | — |
| MC Gain | 50 dB, 60 dB, 70 dB selectable (unbalanced); 56 dB, 66 dB, 76 dB (balanced) | — |
| MC Loading | Front panel selectable 30, 50, 100, 150, 200, 300, 400, 500, 550 ohms plus 47k ohms | — |
| MM Loading | 47k ohms, 100 pF capacitance | — |
| RIAA Accuracy | Plus or minus 0.2 dB, 20 Hz to 20 kHz | — |
| S/N Ratio | Better than 87 dB (MM), better than 75 dB (MC), input shorted, IHF A-weighted | — |
| THD | Less than 0.01 percent | — |
| Frequency Response | 20 Hz to 20 kHz, plus or minus 0.2 dB | — |
| Inputs | One pair single ended RCA phono input with ground terminal | 2 RCA sets (1 MM, 1 MC) with front panel input selector |
| Outputs | One pair balanced XLR, one pair single ended RCA | Balanced XLR and unbalanced RCA |
| Controls | MM/MC selector, MC loading, mono switch, ground lift | — |
| Dimensions | 17.25 in W x 4.125 in H x 13.75 in D | — |
| Weight | 13 lbs | — |
| Type | — | Moving magnet and moving coil phono preamplifier |
| Gain | — | Selectable MM and MC settings |
| Loading | — | Selectable cartridge loading |
| Equalization | — | RIAA |
| Design Philosophy | — | Parasound accuracy and low noise engineering |
The John Curl and Parasound Design Philosophy
Parasound is closely associated with legendary circuit designer John Curl, whose work in the Halo line is defined by discrete circuitry, careful power supply isolation, and a relentless focus on keeping noise below the level where it can intrude on the music. Across the phono category the common threads are precise RIAA equalization, selectable gain and cartridge loading so the stage can be matched to your specific cartridge, and thoughtful shielding to keep hum and hiss out of the signal path. The two models differ not in whether they honor that philosophy but in how far they take it and who they are built for.
Model by Model
Parasound JC3+
The Parasound JC3+ is the reference statement in this lineup and carries the full John Curl Halo JC series discrete circuit design. It supports both moving magnet and moving coil cartridges, with 48 dB of gain for MM and selectable 58 dB or 68 dB for MC, so it can comfortably drive everything from a robust high output cartridge to a very low output moving coil. Cartridge matching is thorough, with 47k ohms for MM and selectable MC loading starting at 100 ohms plus additional adjustable options, letting you dial in the exact character your cartridge was designed to deliver.
The engineering credentials show up in the numbers. RIAA accuracy is held to plus or minus 0.2 dB from 20 Hz to 20 kHz, signal to noise ratio is better than 87 dB for MM and better than 75 dB for MC, and THD is less than 0.02 percent. The power supply uses a shielded toroidal transformer housed in its own isolated enclosure, a classic technique for keeping transformer noise away from the delicate phono circuit. It offers both balanced XLR and unbalanced RCA outputs, which makes it a natural fit for a fully balanced preamplifier or integrated amplifier. In a full size chassis at roughly 15.5 lbs, this is a serious component built to anchor a high resolution vinyl front end.
Who it suits: the listener with a quality turntable and an ambitious cartridge, especially a low output moving coil, who wants reference level quiet, precise loading control, and balanced connectivity into a resolving system. If vinyl is the heart of your listening, the JC3+ is built to reward that commitment.
Parasound XRM
The Parasound XRM brings Parasound accuracy and low noise engineering into a more streamlined, flexible package. It supports both moving magnet and moving coil cartridges with selectable gain and selectable loading, applies proper RIAA equalization, and uses a single ended RCA phono input with a ground terminal along with a line level RCA output. It is designed for clean, honest reproduction and easy integration into a wide range of systems.
Who it suits: the listener building or refining a system who wants genuine Parasound sound quality and cartridge flexibility in a practical, single ended package. If your preamplifier and cabling are RCA based and you want a phono stage that stays out of the way and simply gets the equalization and gain right, the XRM is an excellent match.
How to Choose
By Cartridge
Both models handle moving magnet and moving coil cartridges with selectable gain and loading. If you run a very low output moving coil and want the highest gain option and the most detailed loading control, the JC3+ with its selectable 58 dB and 68 dB MC settings and adjustable loading is the more specialized tool. If your cartridge is more forgiving or you value simplicity, the XRM covers both cartridge types with less to think about.
By System
If your preamplifier or integrated amplifier accepts a balanced connection, the XLR output on the JC3+ lets you take advantage of it. In an all RCA system the XRM slots in cleanly and keeps the signal path straightforward.
By Room and System Resolution
In a dedicated, quiet listening room feeding revealing loudspeakers, the JC3+ has the noise floor and RIAA precision to let subtle detail come through. In a versatile living space or a more compact system, the XRM delivers Parasound quiet and accuracy without asking for a full reference rack.
By Budget
The JC3+ is the flagship investment in this category and is aimed at listeners who want the full John Curl reference experience. The XRM is the more accessible entry into Parasound phono performance while still honoring the same low noise, accurate design goals. Neither is a compromise on the fundamentals; they simply target different levels of ambition.
Which Should You Buy
- You have a high end turntable and a low output moving coil cartridge: choose the JC3+ for its higher MC gain options, detailed loading, and reference noise floor.
- Your system is fully or partly balanced: the JC3+ offers XLR outputs to match.
- You want excellent Parasound phono sound in a flexible RCA package: the XRM is the natural pick.
- You are building a first serious vinyl system and want room to grow: the XRM gives you real quality now with a clear upgrade path toward the JC3+ later.
Both models reflect the same commitment to accurate RIAA equalization, low noise, and honest reproduction. The right choice comes down to your cartridge, your connections, and how central vinyl is to your listening.
Come Listen
All Elite Audio is an authorized Parasound dealer with a showroom in Timonium, Maryland. Our demo units rotate and not every model is always set up for audition, so please contact AEA and we will be glad to arrange a listen and help you match a phono preamplifier to your turntable, cartridge, and system.