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OFF - FOR SALE: Wyred 4 Sound mPRE (black)

Item #649306312
Info: Wyred 4 Sound mPRE (black)

Asking Price:
USD $600.00
Retail Price: USD $1099.00
Payment method: Cash, Paypal
Shipping weight: 4.54 (kg) Calculate Shipping
Shipping Dimension: 30.48cm x 30.48cm x 15.24cm
Condition: 9 - Excellent (?)
Date Posted: May 11, 18 7:53pm (PST)
Edited: Jul 26, 18 11:04am
About Seller: WA, United States
Product Brand: wyred 4 Sound
External Feedback: 971toma (24)
Days in System:76
Ships to: Contiguous USA
Shipping Cost:
  • Allow Local Pickup
  • Contiguous USA : FREE (standard)

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Design and Feature Overview

A preamp plays a crucial role in any HiFi system. Its job is rather simple, but developing a component that is able to control levels without adding coloration, distortion, or any other undesirable attribute is a delicate matter. We began by designing a fully balanced circuit from input to output which actively rejects noise and lowers distortion. The noteworthy sonic benefits of the balanced architecture will be evident in both a lower noise floor as well as finer detail. The analog volume control design is very similar in principle to the award winning STP-SE. Additionally, the preamp has been equipped with completely separate right and left channels which begins with the power supplies. As a result of the absolute channel separation and remarkable channel matching, our new mPRE produces holographic imaging that is apparent at all listening levels. The fully balanced, dual mono, dual differential circuit design is unheard of at this price point. Implementing over 80 FET's which are quad-paralleled for lower noise and increased current is only one reason why the mPRE prevails. Input and output stages have been incorporated to preserve sonic integrity throughout the circuit. Because of an extravagant design, you will have the option to pair this preamp with anything from W4S solid state gear to tube equipment with excellent results.

This state-of-the-art preamp has a built-in DAC with three inputs which include Toslink, Coaxial and USB. All digital inputs support 24 bit 192kHz streaming. The ESS Sabre DAC utilizes Hyperstream™ and Jitter Elimination Architecture pg. 3 rendering it immune to jitter. The USB interface is derived from the latest asynchronous XMOS design which is certified USB 2.0 High Speed and Audio Class 2.0 compliant. Consequently, our mPRE requires a quick driver install for PC machines and is driverless for Mac (10.6.4 and above) as well as Linux systems. Incredibly low latency in conjunction with the asynchronous mode communication and ultra precise clocks permits exceptionally high quality digital streaming. A preamp of this caliber and flexibility will efficiently improve your system.

The mPRE is equipped with a total of 3 analog inputs and outputs. Two of the analog inputs are RCA and one of them can be configured as a Home Theater bypass input. The two RCA outputs are the typical variable output type but one of them can be configured as a fixed out. Finishing it off is the balanced (XLR) input and output utilizing high quality Neutrik connectors. Due to the extent of this firstclass design, single ended to balanced conversion is inherent in the design and ensures that all of the independent outputs are active regardless of the selected input. You can be confident that the signal path for your analog sources are highly refined with the mPRE.

On the occasion that you are craving a headphone session, the mPRE has a ¼” headphone jack on the front panel so you can plug right into the high performance headphone amp. Taking advantage of the dual mono design and low noise, the mPRE is nothing short of impressive. All of the benefits the preamp will be even more apparent with the headphone stage. An abundance of dynamic range and power capable of driving headphones down to 16 ohms makes for a true hi fidelity headphone experience.

mPRE Features

Fully balanced, Dual mono design
Next generation input and output buffers
Built-in ESS DAC which supports 24 bit 192 kHz on all digital inputs
Galvanically isolated, asynchronous USB input which supports Windows machines, is driverless for Mac, and supports Linux
Headphone amplifier
Remote Control
12V DC trigger input and output
Efficient (no heat)
Fully balanced input to output
Discrete input and output buffers
Unbalanced to balanced conversion (when RCA input selected and XLR outputs are being used)
Robust construction
Machined and anodized aluminum front panel, top, and sides
100kΩ input impedance
1 set of balanced (XLR) inputs
1 set of balanced (XLR) outputs
2 sets of unbalanced (RCA) inputs (one is selectable as HT bypass)
2 sets of unbalanced (RCA) outputs (one is selectable as a fixed 2.0V output)
Home Theater Bypass
External selectable voltage mains 115/230VAC
High grade Schottky Bridges
Compact size (8"W x 3.5"H x 8"D)
8 lbs.

W4S mPRE Specs

XLR In/Out

Typical THD+N 20Hz-20kHz (A Wt) @ 2V: <0.002%​
Noise 20Hz-20kHz (A Wt): < 12µV
Frequency Response 20Hz-20kHz: ± 0.020db
Channel Tracking: < ± 0.020db
Crosstalk: > 95db
Input Impedance: 100kΩ
Output Impedance: 100Ω
S/N Ratio: > 103db
Gain: 11.4db

RCA In/Out

Typical THD+N 20Hz-20kHz (A Wt) @ 2V: <0.007%​
Noise 20Hz-20kHz (A Wt): < 8µV
Frequency Response 20Hz-20kHz: ± 0.002 db
Channel Tracking: < ± 0.020 db
Crosstalk: > 118 db
Input Impedance: 100kΩ
Output Impedance: 100Ω
S/N Ratio: > 105 db
Gain: 5.3 db

Digital In/XLR Out

Typical THD+N 20Hz-20kHz (A Wt) @ 2V: <0.006%​
Noise 20Hz-20kHz (A Wt): < 12µV
Frequency Response 20Hz-20kHz: ± 0.002 db
Channel Tracking: < ± 0.020 db
Crosstalk: > 118 db
Input Impedance: 75Ω (Coax)
Output Impedance: 100Ω
S/N Ratio: > 105 db
Gain: 17.2 db (Vrms/FS)

Headphone Output

32Ω Load: 1.3W @ 0.1% THD+N
300Ω Load: 255mW @ 0.1% THD+N
600Ω Load: 128mW @ 0.1% THD+N

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