AGD Production AGD Alto MKII
The AGD Alto MKII brings a slightly warm, low-noise presentation to compact high-end systems, pairing vivid musical drive with finely resolved inner detail and exceptionally focused imaging. Future Audiophile found its MM/MC phono stage equally convincing with vinyl and digital sources, while the balanced, capacitor-free design keeps the signal path impressively clean.
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Nicely Roasted
Sound Quality
90/100
Build Quality
85/100
Features Connectivity
90/100
Value for Money
83/100
Pros
Delivers a slightly warm, low-noise sound with strong dynamics that makes mainstream music engaging.
Produces realistic spatial detail, palpable vocal texture, and precisely anchored images.
Its MM/MC phono stage performs strongly and was judged capable of competing with expensive standalone units.
Cons
Lacks integrated DAC, room correction, and bass management, limiting its all-in-one value proposition.
Compact chassis provides only one balanced input and one balanced output.
Plastic remote was considered chintzy and required syncing on the review unit.
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What Reviewers Are Saying
SOUND QUALITY PERFORMANCE 90/100
Review coverage describes a clean, low-noise and slightly warm presentation with strong musical drive. It also earns particular praise for realistic detail and firmly focused images, though a much costlier Bricasti M20 was said to retain an edge in ultimate dynamics and fine resolution.
Transparency Resolution
91/100
The Alto is described as having superior noise performance, wide bandwidth and a notably clean presentation. It retrieved small inner details that enhanced realism, although the Bricasti M20 was judged to offer still finer resolution at more than twice the price.
Tonal Balance Musicality
89/100
The reviewer found the Alto slightly warm rather than strictly neutral, a character that brought mainstream music to life. It handled vocals, drums, slide guitar and dense rock material convincingly, while the Amped America AAP-1 was identified as the more dead-neutral alternative.
Dynamics
89/100
Strong dynamics are specifically credited as part of the Alto's lively, low-noise character. There was not said to be much missing versus the Bricasti M20, but that higher-priced reference retained better dynamic expression.
Soundstage Imaging
92/100
Spatial performance received especially enthusiastic praise. The reviewer heard a realistic sense of being in the audience, with palpable vocal texture and Kurt Cobain's voice anchored precisely in the soundstage.
Assessments of Build Quality, Usability, and Overall Propositions.
Build Quality
85/100
The Alto's fully balanced, capacitor-free analogue layout and large, legible high-resolution display reflect thoughtful engineering. An early-production volume-control clicking issue was corrected through firmware, but the plastic remote was considered chintzy and required syncing before use.
Features Connectivity
90/100
The Alto includes MM and MC phono support, two single-ended line inputs, one XLR input, balanced and RCA outputs, home-theater pass-through, infrared remote control and a 12V trigger. The reviewer nevertheless considered it light on integrated facilities, citing the absence of an internal DAC, room correction and bass management, while the compact chassis limits balanced connections to one input and one output.
Value for Money
83/100
At $4,995, the Alto was characterized as an excellent-sounding, high-performance preamplifier from a disruptive company. However, the review says its limited integrated feature set weakens the value proposition against alternatives offering DAC functionality, room correction or bass management, and notes potential weakness in used-market appeal.
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Specifications
- Phono Input
- Moving Magnet and Moving Coil selectable via Menu MM Input Impedance: 47kΩ, S/R ≥ 80db MC Input Impedance: 420Ω, S/R ≥70db RIAA Accuracy: <0.1dB Frequency Response: 20Hz-20kHz ±0.1db THD%: ≤0.05%
- Line Analog Inputs
- 2 Single ended (RCA2, RCA3), 1 XLR inputs (XLR) Frequency Response: 1Hz-100kHz ±0.2db (Passive front-end direct coupling)
- Analog Outputs
- 1 XLR Output, 2 RCA Outputs (Output #1&2 full range, Output #3 HT Pass-Through). Output Impedance: <50ohm Frequency Response: 1Hz-100kHz ±0.2db THD+N (Balanced): ≤0.005% THD+N (Single Ended): ≤0.009% S/R ≥130db Direct output coupling.
- Net Dimension
- 11”x 7.1”x 3.5” (280 x 180 x 90mm)
- Remote
- Infrared
- Trigger Output
- 12V, 0.1A DC
- Flight Case Dimension
- 20”x 16”x 7.5” (500 x 406 x 190mm)
- Net Weight
- 11lb/5Kg
- Gross Weight
- 17lb/8Kg
- Input voltage
- Universal (110-240V, 50-60Hz)
Manufacturer's Description — AGD Production
Description
The AGD “ALTO” is a complete audiophile Line and Phono Reference Preamplifier that delivers a unique set of features and components in a very compact beautifully crafted single billet aluminum cabinet.
With his built-in fully balanced phono stage (MM & MC), a volume control with the most thermally stable and high precision resistor ladder circuit, the “ALTO” is by design the perfect companion preamplifier for our “TEMPO” and “Audion MkIII” power GaN Amplifiers.
The new MKII release of the ALTO, is availble with optional Digital front end (Streamer and DAC).
The ALTO’s Phono stage, is a fully balanced topology circuitry, with superior sonic performances that will satisfy the most demanding Audiophile.
While The “ALTO” is by design the perfect companion preamplifier for our “TEMPO” and “Audion” Stereo GaN Amplifier, it will also deliver the most sublime and purest sound with any audio system of any standard.
The AGD Audio Design team is confident the “ALTO” will meet your expectations and as a team, we will always stand in support of your needs and future requirements.
Design Philosophy
I have always been driven by my passion to merge perfection and beauty in the art of Audio reproduction.
After the launch of the AGD “TEMPO” we wanted to create a perfect companion preamplifier and so, the AGD “ALTO” is our new compact reference analog preamplifier.
Crafted with the same care and dedication as all AGD products, the “ALTO” is a superior musical preamplifier that incorporates all the design features already adopted in the bigger sibling, the AGD “Andante”.
Main Features
- Fully Balanced Phono preamplifier stage with MM & MC cartridges support (selection via Menu and Remote control) and with dedicated ultra-low noise linear power supply and ultra-low noise linear professional grade amplifiers stage.
- Analog boards fully shielded and separated from digital boards to deliver the lowest possible noise and prevent any undesired interference.
- High Dynamic low noise professional grade instrumentational amplifier stages for the output buffer stage (configurable as bi-amp X-Over upon request).
- Fully balanced design and full DC coupling (no capacitors in line with analog signals).
- Three Analog inputs with one input fully balanced (XLR connectors).
- 8bit fully balanced passive Ladder volume control.
- Three analog outputs (for multi-amplification solutions.
- 1 XLR balanced output (6.4VRMS max)
- 2 Single-ended stereo output (low/high pass X-Over customizable)
- Remote control.
- 12V output Trigger.
Verified Dealers
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Authorized dealers for AGD Production AGD Alto MKII
- Audio Gallery — online and in-store — Las Rozas de Madrid, Comunidad de Madrid, Spain (website)
- Audiophile Zone — online and in-store — Baywood-Los Osos, California, United States (website)
- Delve Audio — in-store — Caldwell, New Jersey, United States (website)
- Dr Vinyl — in-store — Middle River, Maryland, United States (website)
- e11even stereophonic — in-store — Atlanta, Georgia, United States (website)
- ECRIN DE FRANCE — in-store — Roubaix, Hauts-de-France, France (website)
- Hifi-Connect France — in-store — Perpignan, Occitanie, France (website)
- Indie Hifi — in-store — New Farm, Queensland, Australia (website)
- Maco — online and in-store — Old Toronto, Ontario, United States (website)
- Next Level HiFi — online and in-store — Wayne, Illinois, United States (website)
and 4 more verified dealers