User Manual for iFi AUDIO Retro Stereo 50 Vacuum Tube Amplifier Click to enlarge the picture
Contents of the user manual for the iFi AUDIO Retro Stereo 50 Vacuum
- Product category: Amplifiers iFi AUDIO
- Brand: iFi AUDIO
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for iFi AUDIO Amplifiers
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User manual for the iFi AUDIO Retro Stereo 50 Vacuum contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any iFi AUDIO product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official iFi AUDIO user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a iFi AUDIO product will considerably shorten its lifespan!
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Product description The Retro Stereo 50 Vacuum Tube Amplifier from iFi AUDIO utilizes four EL84X and two ECF82 tubes with an advanced ground-up circuit and is equipped with a Burr-Brown DAC chip to output up to 25W per channel. It features connectivity for both analog and digital audio devices, with stereo RCA, optical/coaxial combo, and USB inputs. Smart devices with Bluetooth are also supported, with aptX for high-fidelity wireless streaming from supported devices. NFC makes the pairing process easy. The Stereo 50 also has separate 3.5mm and 6.3mm headphone outputs, each with dedicated gain and sensitivity, to work with a wide range of both over-ear and in-ear headphones. - Digital and Analog Technologies Combined
- The Stereo 50 features four EL84X and two ECF82 analog tubes with an advanced ground-up circuit. Running primarily in Class A, its 25W per channel output provides both power and realism to your music sources. The tubes can be removed and replaced if you wish to customize the sound.
- Bluetooth aptX
- Bluetooth aptX offers CD-like-quality wireless audio beyond normal Bluetooth.
- USB & SPDIF for Computer Audio
- High-resolution audio is supported via USB, coaxial, and optical inputs. It supports PCM from 16-bit/44 kHz up to 32-bit/768 kHz, DSD up to Octa-DSD512 (22.6/24.6 MHz, and DXD 2x to 768 kHz. The minimum phase filter for PCM and bit-perfect filter for DXD/DSD ensure maximum enjoyment with a smooth and organic tonality.
- Burr-Brown DAC with AMR Technology
- The Burr-Brown DAC chip uses trickle-down technology from AMR to give your digital music a classic, analog sound.
- 1/4" and 1/8" Headphone Outputs
- The Stereo 50 uses separate 1/4" and 1/8" headphone outputs, each with its own dedicated gain and sensitivity to match high-sensitivity in-ear monitors and low-sensitivity over-ear headphones respectively. The 1/4" output pumps out 7000mW to power high-impedance headphones. The 3D Holographic for Headphones technology uses pure analog signal processing to deliver a wide-open and spatially correct sound stage for headphones to enhance the listening experience. XBass dynamically corrects the bass response.
- Powerful Phono Pre-Amp
- The MM/MC phono input has an adjustable ultra-wide gain from 38-62 dB and its tone control invokes classic equalization technology. With 6 different EQ curves (via the precision tone control), every stereophonic record is catered for, from the default RIAA to EMI and Decca. The noise floor of the Stereo 50 is below (as opposed to above) that of the record.
- Analog Tone and Volume Controls
- Digital volume controls truncate the delicate audio signal, so the Stereo 50 uses analog tone and volume control. A motorized Alps potentiometer controls the volume with a less than 3 dB tracking error. A remote control is included for use from your couch.
In the Box iFi AUDIO Retro Stereo 50 Vacuum Tube Amplifier Remote Control Rubber Feet Optical Adapter 3.5mm Audio Cable Bluetooth Antenna USB Cable RCA Cable Power Cable Speaker Cables Non-Slip Mat White Gloves Limited 1-Year Warranty Table of Contents
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Technical parametersiFi AUDIO Retro - Stereo 50 Specs | Wireless | Bluetooth aptX | | Digital Input | 1 x USB Type-B (DSD512 / 768 kHz / 2 x DXD)
1 x coaxial/optical combo (192 kHz) | | Analog Input | 2 x phono (MM/MC low/MC high/line 3)
2 x stereo RCA
1 x 3.5 mm (front; shared with line 2) | | Outputs | 2 x speaker pairs, 4-16 Ohms
1 x 1/8" (3.5 mm) headphone (output impedance <3 ohms)
1 x 1/4" (6.3 mm) headphone (output impedance <6 Ohms) | | Power Output | >25 W (majority Class A) | | Total Harmonic Distortion (THD) | <0.2% (at 2.83 V / 1 W) | | Output Bandwidth | 10 Hz to 60 kHz | | Frequency Response | 10 Hz to 80 kHz | | Signal-to-Noise Ratio | Amplifier: 101 dB (at max output)
Phono MM: 90 dB(A)
Phono MC: 80 dB(A) | | DAC Dynamic Range | >113 dB(A) | | Tone Control | Bass (100 Hz):
Rating60% users recommend this product to others. And what about you?
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