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The iFi iDSD GR 2 MT Portable DAC Amp delivers high output power and wireless convenience. If you are searching for ifi idsd gr 2 mt alternatives, you may want a different size, feature set, or brand. This guide presents 6 options that share core specifications with the original device. We selected these products because their technical data overlaps with the iFi model, ensuring comparable performance for your setup.
The original unit features a Burr-Brown PCM1795 DAC and aptX Lossless Bluetooth. It provides up to 2,173mW of power and includes an OLED display. Some buyers might prefer a lighter form factor or a different connector type. Others may seek balanced outputs or newer Bluetooth standards. The list includes portable and desktop options with varying weights and dimensions. Each alternative offers specific attributes like LDAC support or manual gain control. You can compare these specs to find the best match for your headphones and listening habits.
How each alternative compares
iFi iDSD GR 2 Portable DAC/Amp
The iFi iDSD GR 2 shares the same Bluetooth and Lossless DSD features as the MT model. It also includes an OLED display for easy control. However, it weighs 1.1 pounds, which is heavier than many competitors. You get the same Burr-Brown PCM1795 DAC and Steve Levine filters for detailed sound. This version is ideal if you prefer the iFi ecosystem and want a slightly different form factor. It lacks the specific MT badge but offers identical core audio performance for portable listening.
Questyle M18i Max Portable DAC Amp
The Questyle M18i Max uses Bluetooth 5.4 for stable wireless connections. It supports LDAC and Lossless DSD for high-resolution audio. Unlike the iFi, it features a 4.4mm balanced output for lower distortion. The unit measures 3.35 by 2.17 by 0.59 inches and weighs 3.52 ounces. It is lighter than the iFi GR 2 MT. The manual gain control allows precise tuning for different headphones. This model suits critical listeners who need balanced outputs and the latest Bluetooth codec support in a compact package.
FiiO BTR17 Black Bluetooth DAC Amp
The FiiO BTR17 features dual ES9069Q DAC chips for high-resolution audio. It supports Bluetooth 5.4 and LDAC for lossless wireless streaming. The device includes a 4.4mm balanced output for improved channel separation. It offers detailed EQ control for sound customization. The BTR17 is a portable unit focused on clarity and flexibility. It lacks the OLED display found on the iFi but provides robust wireless performance. This option is best for users who prioritize digital signal processing and balanced connectivity over display interfaces.
FiiO BTR7 Portable Bluetooth DAC/Amp
The FiiO BTR7 supports LDAC for high-resolution wireless audio. It features a USB-C connection for wired use. The unit has a 4.4mm balanced output for cleaner signal transmission. It weighs 1.59 ounces and measures 3.27 by 1.56 by 0.57 inches. It is significantly lighter than the iFi iDSD GR 2 MT. The BTR7 focuses on codec support and balanced output formats. It does not include an OLED display. This model is suitable for listeners who value balanced connectivity and compact size over wireless display features.
Questyle Sigma Portable DAC Amp
The Questyle Sigma uses Bluetooth 5.4 and supports LDAC for high-quality wireless audio. It includes a 4.4mm balanced output and USB-C connection. The device measures 4.33 by 2.75 by 0.59 inches. It is designed for strong drive capability in a small body. The Sigma offers desktop-class power for portable use. It lacks the OLED display of the iFi model. This DAC is ideal for users who need high output power and Apple certification. It prioritizes amplification strength over display functionality for portable listening.
Fosi Audio K7 Desktop DAC Amp
The Fosi Audio K7 is a desktop DAC amp, not a portable unit. It supports Bluetooth and includes a built-in microphone for gaming. The device features a 4.4mm balanced output and USB-C connection. It measures 6.1 by 3.74 inches. This model is larger than the iFi iDSD GR 2 MT. It is designed for dedicated desk setups rather than mobile use. The K7 offers high-resolution decoding and gaming-specific features. It is best for users who want a stationary audio hub with microphone support instead of a portable player.
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | iFi iDSD GR 2 MT Portable DAC Amp Best overall | portable high-power listening | |
| 2 | iFi iDSD GR 2 Portable DAC/Amp Best premium | portable high-res wireless listening | |
| 3 | Questyle M18i Max Portable DAC Amp Also great | high-resolution wireless listening with balanced output | |
| 4 | FiiO BTR17 Black Bluetooth DAC Amp Best budget | High-resolution wireless audio with detailed EQ | |
| 5 | FiiO BTR7 Portable Bluetooth DAC/Amp Also great | balanced output and high-res codecs | |
| 6 | Questyle Sigma Portable DAC Amp Also great | Powerful portable amplification for Apple users | |
| 7 | Fosi Audio K7 Desktop DAC Amp Best microphone | Desktop gaming and HiFi listening |
iFi iDSD GR 2 MT Portable DAC Amp
Best for: portable high-power listening
- Output Power
- 2,173mW
- DAC Architecture
- Burr-Brown PCM1795
- Bluetooth Codecs
- aptX Lossless
- Connection
- Wireless
- Features
- Bluetooth, Lossless DSD, Display
- Form Factor
- Portable
The iFi iDSD GR 2 MT is a portable DAC and headphone amplifier built around the Burr-Brown PCM1795 DAC chip. It features aptX Lossless Bluetooth for high-quality wireless audio and delivers up to 2,173mW of output power. The device includes an OLED display and a 4,900mAh battery. It suits listeners who want detailed sound with K2 Technology and flexible power modes for various headphones and IEMs.
- Burr-Brown PCM1795 DAC chip for detailed audio
- aptX Lossless Bluetooth for CD-quality wireless streaming
- Up to 2,173mW output power with three modes
- 4,900mAh battery for extended portable use
- OLED display with capacitive touch controls
- Maximum 7 hours of battery life
- Output power is lower than some competitors
- You want a portable DAC with high output power
- You prefer wired and wireless connectivity options
- You value detailed sound with K2 Technology
- You need a desktop-only amplifier
- You require more than 7 hours of battery life
- You prefer a device without an OLED display
Verdict: The iFi iDSD GR 2 MT Portable DAC is a strong choice for portable listeners who need high power and wireless convenience. It fits users who prioritize detailed audio quality and flexible headphone driving capabilities.
iFi iDSD GR 2 Portable DAC/Amp
Best for: portable high-res wireless listening
- Output Power
- Up to 2,173mW
- Audio Inputs
- SPDIF, analog
- DAC Architecture
- Burr Brown PCM1795
- Bluetooth Codecs
- aptX Lossless
- Connection
- Wireless
- Features
- Bluetooth, Lossless DSD, Display
The iFi iDSD GR 2 is a portable DAC and headphone amplifier featuring a Burr Brown PCM1795 DAC. It delivers up to 2,173mW of peak output to drive demanding headphones. You get aptX Lossless Bluetooth for high-quality wireless listening and a 4,900mAh battery for extended use. The unit includes an OLED display and app support via iFi Nexis. It suits listeners who want refined sound and fine-tuning controls in a portable format.
- Burr Brown PCM1795 DAC for high-resolution sound
- Up to 2,173mW peak output power
- aptX Lossless Bluetooth support
- 4,900mAh battery capacity
- OLED touch display and iFi Nexis app
- Lower peak power at 2,173mW compared to competitors
- Heavier build at 1.1 pounds
- Shorter battery life of 7 hours
- You want a portable DAC with fine-tuning controls like XBass+
- You prioritize high-resolution wireless audio via aptX Lossless
- You need a device with an OLED display for status
- You need maximum power output for very high-impedance headphones
- You prefer a lighter, more compact portable unit
- You want a desktop-only amplifier without battery constraints
Verdict: The iFi iDSD GR 2 Portable DAC Amp fits listeners who value detailed sound and wireless convenience. It is ideal for those who want app-based customization and a clear OLED display in a portable package.
Questyle M18i Max Portable DAC Amp
Best for: high-resolution wireless listening with balanced output
- Headphone Outputs
- 3.5mm unbalanced, 4.4mm balanced
- DAC Architecture
- ESS ES9219Q
- Max PCM Resolution
- 384kHz
- DSD Support
- DSD256
- Bluetooth Codecs
- LDAC, aptX Adaptive, aptX HD, AAC, SBC
- Connection
- Wireless
The Questyle M18i Max is a portable DAC and headphone amplifier featuring Bluetooth 5.4 and dual outputs. It uses the ESS ES9219Q DAC chip and supports LDAC, aptX Adaptive, and aptX HD for high-resolution wireless audio. The device includes 3.5mm and 4.4mm jacks with manual gain control. Weighing 3.52 ounces, it offers a compact build for smartphones and portable use.
- ESS ES9219Q DAC chip with TTA framework
- Bluetooth 5.4 with LDAC and aptX Adaptive
- Dual 3.5mm and 4.4mm outputs
- Manual gain control with 60 volume levels
- 0.0002% ultra-low distortion
- Heavier at 3.52 ounces compared to lighter alternatives
- Larger dimensions than some pocket-sized competitors
- Single microphone for calls limits audio clarity
- You need balanced 4.4mm output for high-impedance headphones
- You want LDAC support for high-resolution wireless audio
- You prefer manual gain control for precise volume adjustment
- You require a display for real-time codec information
- You need the absolute lightest portable option
- You prefer a simpler single-button interface
Verdict: The Questyle M18i Max Portable DAC Amp suits listeners who prioritize high-resolution wireless codecs and balanced outputs. Its manual gain control and low distortion make it ideal for critical listening on the go.
FiiO BTR17 Black Bluetooth DAC Amp
Best for: High-resolution wireless audio with detailed EQ
- Headphone Outputs
- 3.5mm unbalanced, 4.4mm balanced
- Output Power
- 650mW
- DAC Architecture
- Dual ESS ES9069Q
- Max PCM Resolution
- 768kHz/32bit
- DSD Support
- DSD512
- Bluetooth Codecs
- LDAC, aptX Lossless, aptX Adaptive
The FiiO BTR17 is a portable DAC and headphone amplifier featuring Bluetooth 5.4 and dual ES9069Q DAC chips. It supports high-resolution audio codecs like LDAC and aptX Lossless at 96kHz/24bit. The device offers a 130dB dynamic range and includes a 10-band parametric EQ. It provides 650mW of output power and allows desktop mode use with external power. This unit suits listeners who want high-fidelity wireless playback and detailed sound control.
- Dual ES9069Q DACs provide a 130dB dynamic range.
- Bluetooth 5.4 supports LDAC and aptX Lossless.
- 10-band parametric EQ adjustable via app.
- 650mW output power in desktop mode.
- Single 3.5mm balanced output limits connection options.
- 10-band EQ offers fewer settings than advanced models.
- You want high-resolution wireless audio support.
- You need a portable DAC with strong output power.
- You prefer using parametric EQ for sound tuning.
- You require multiple output jack types.
- You want more than 10 EQ bands.
- You prefer a device with a larger display.
Verdict: The FiiO BTR17 Portable DAC Amp delivers high-resolution audio with dual ES9069Q chips and Bluetooth 5.4. It fits users who prioritize sound clarity and detailed EQ control in a portable form factor.
FiiO BTR7 Portable Bluetooth DAC/Amp
Best for: balanced output and high-res codecs
- Headphone Outputs
- 3.5mm single-ended, 4.4mm balanced
- DAC Architecture
- ES9219C
- Max PCM Resolution
- 384kHz / 32-bit
- DSD Support
- DSD256
- Bluetooth Codecs
- LDAC, aptX Adaptive, aptX HD, AAC, SBC
- Connection
- Wireless
The FiiO BTR7 is a portable DAC and headphone amplifier featuring Bluetooth 5.1 and a USB-C connection. It uses dual ES9219C chips and an XMOS XUF208 processor to support PCM 384kHz and native DSD256. You get both 3.5mm and 4.4mm outputs for flexible headphone pairing. This unit weighs 1.59 ounces and measures 3.27 inches long. It suits listeners who want high-resolution wireless audio with balanced output options.
- Dual ES9219C DAC chips for left and right channels
- 3.5mm and 4.4mm headphone outputs
- Supports PCM 384kHz and native DSD256
- Bluetooth 5.1 with LDAC and aptX HD
- Bluetooth 5.1 is older than the 5.4 standard found in competitors
- Heavier at 1.59 ounces compared to lighter portable options
- Shorter at 3.27 inches than some compact alternatives
- You need a 4.4mm balanced output for your headphones
- You prioritize high-resolution codec support like LDAC
- You want a compact device under 2 ounces
- You require the latest Bluetooth 5.4 standard
- You prefer a device lighter than 1.5 ounces
- You need a display screen for settings
Verdict: The FiiO BTR7 Portable DAC Amp delivers high-resolution audio via balanced outputs. It fits users who value codec support and dual jack formats over the newest Bluetooth version.
Questyle Sigma Portable DAC Amp
Best for: Powerful portable amplification for Apple users
- Headphone Outputs
- 3.5mm, 4.4mm
- DAC Architecture
- AKM AK4493
- Max PCM Resolution
- PCM768
- DSD Support
- DSD512
- Bluetooth Codecs
- LDAC, aptX Adaptive, aptX HD, LE Audio
- Connection
- Wireless
The Questyle Sigma is a portable DAC and headphone amplifier designed for smartphones and laptops. It features Bluetooth 5.4 with LDAC and aptX Adaptive support. The unit uses an AK4493 DAC and Questyle’s TTA architecture. It delivers peak power over 5W and peak current up to 3A. MFi certification ensures safe use with Apple devices. Its compact size fits easily in your pocket.
- Bluetooth 5.4 with LDAC and aptX Adaptive
- AK4493 DAC with TTA Signal Processing
- Peak power >5W and peak current 3A
- MFi certified for iPhone and iPad
- Fully discrete balanced CMA architecture
- Smaller physical dimensions than the iFi iDSD GR 2 MT
- Single 3.5mm output jack visible in title
- No OLED display mentioned in specifications
- You want high power output in a small package
- You use an iPhone or iPad and need MFi certification
- You prioritize balanced current mode amplification
- You require a large OLED display for settings
- You need multiple output jacks for simultaneous use
- You prefer a larger desktop-sized chassis
Verdict: The Questyle Sigma Bluetooth 5.4 Portable DAC offers desktop-class power in a pocket-sized body. It suits listeners who need strong drive capability and certified Apple compatibility without carrying a large device.
Fosi Audio K7 Desktop DAC Amp
Best for: Desktop gaming and HiFi listening
- Headphone Outputs
- 3.5mm, 4.4mm balanced
- Output Power
- 2100mW
- Audio Inputs
- USB-C, optical, coaxial, Bluetooth
- DAC Architecture
- AK4493S
- Max PCM Resolution
- 384kHz/32bit
- DSD Support
- DSD256
The Fosi Audio K7 is a desktop DAC and headphone amplifier built for gaming and HiFi listening. It uses an AK4493S DAC and supports PCM 384kHz/32bit and DSD256. It delivers 2100mW of power through a 4.4mm balanced output. The unit includes a 3.5mm mic input and Bluetooth aptX HD. Its aluminum chassis measures 6.1 by 3.74 inches. This setup suits users who want a dedicated audio hub for their desk.
- Supports high-resolution audio up to DSD256
- Delivers 2100mW output power for demanding headphones
- Includes a 3.5mm microphone input for gaming
- Features Bluetooth aptX HD connectivity
- Built with a solid aluminum alloy chassis
- Limited to 2100mW output power compared to higher-wattage competitors
- Desktop form factor requires a permanent desk setup
- Smaller 3.74-inch width limits portability options
- You need a dedicated desktop audio hub for gaming
- You want a 3.5mm microphone input for voice chat
- You prefer a solid aluminum build for your desk
- You need a portable device for travel
- You require higher output power than 2100mW
- You want a wireless-only connection without wired inputs
Verdict: Fosi Audio K7 Desktop DAC offers high-resolution decoding and a built-in microphone for gamers. It fits users who want a sturdy, dedicated audio hub for their desk rather than a portable player.
Specifications side by side
| Spec | iFi iDSD GR 2 MT Portable DAC Amp | iFi iDSD GR 2 Portable DAC/Amp | Questyle M18i Max Portable DAC Amp | FiiO BTR17 Black Bluetooth DAC Amp | FiiO BTR7 Portable Bluetooth DAC/Amp | Questyle Sigma Portable DAC Amp | Fosi Audio K7 Desktop DAC Amp |
|---|---|---|---|---|---|---|---|
| Headphone Outputs | – | – | 3.5mm unbalanced, 4.4mm balanced | 3.5mm unbalanced, 4.4mm balanced | 3.5mm single-ended, 4.4mm balanced | 3.5mm, 4.4mm | 3.5mm, 4.4mm balanced |
| Output Power | 2,173mW | Up to 2,173mW | – | 650mW | – | – | 2100mW |
| Audio Inputs | – | SPDIF, analog | – | – | – | – | USB-C, optical, coaxial, Bluetooth |
| DAC Architecture | Burr-Brown PCM1795 | Burr Brown PCM1795 | ESS ES9219Q | Dual ESS ES9069Q | ES9219C | AKM AK4493 | AK4493S |
| Max PCM Resolution | – | – | 384kHz | 768kHz/32bit | 384kHz / 32-bit | PCM768 | 384kHz/32bit |
| DSD Support | – | – | DSD256 | DSD512 | DSD256 | DSD512 | DSD256 |
| Bluetooth Codecs | aptX Lossless | aptX Lossless | LDAC, aptX Adaptive, aptX HD, AAC, SBC | LDAC, aptX Lossless, aptX Adaptive | LDAC, aptX Adaptive, aptX HD, AAC, SBC | LDAC, aptX Adaptive, aptX HD, LE Audio | aptX HD, aptX LL |
| Connection | Wireless | Wireless | Wireless | Wireless | Wireless | Wireless | Wireless |
| Features | Bluetooth, Lossless DSD, Display | Bluetooth, Lossless DSD, Display | Bluetooth, 4.4mm Balanced, Lossless DSD, LDAC | Bluetooth, 4.4mm Balanced, Lossless DSD, LDAC | Bluetooth, USB-C, LDAC | Bluetooth, USB-C, 4.4mm Balanced, LDAC | Bluetooth, Microphone, USB-C, 4.4mm Balanced |
| Use | – | – | Smartphones | – | Smartphones | Smartphones | Gaming |
| Color | – | – | Black | Black | Black | Black | Black |
| Bluetooth | – | – | Bluetooth 5.4 | Bluetooth 5.4 | – | Bluetooth 5.4 | – |
| Form Factor | Portable | Portable | Portable | – | Portable | Portable | Desktop |
| Type | DAC/Amp | DAC/Amp | DAC/Amp | DAC/Amp | DAC/Amp | DAC/Amp | DAC/Amp |
| Output | – | – | Balanced | Balanced | – | – | Balanced |
| Weight | – | 1.1 pounds | 3.52 ounces | 8.48 ounces | 1.59 ounces | – | – |
| Dimensions | – | – | 3.35 × 2.17 × 0.59 inches | 6.54 × 4.65 × 1.61 inches | 1.56 × 0.57 × 3.27 inches | 4.33 × 2.75 × 0.59 inches | – |
| Length | – | – | – | – | – | – | 6.1 inches |
| Width | – | – | – | – | – | – | 3.74 inches |
| Model | – | 0310006 | M18i Max | BTR17 | SFNS2031 | Sigma | K7-D1US |
| Size | – | – | One Size | – | BTR7-B-Type C | Small | – |
Frequently asked questions
Which portable DAC offers the best balanced output?
The Questyle M18i Max and FiiO BTR17 both feature 4.4mm balanced outputs. The M18i Max adds manual gain control and Bluetooth 5.4. The BTR17 uses dual ES9069Q chips for high-resolution audio. Both models support LDAC and Lossless DSD for detailed wireless listening.
Is there a desktop alternative for gaming?
The Fosi Audio K7 is a desktop DAC amp designed for gaming. It includes a built-in microphone and 4.4mm balanced output. This model fits users who want a dedicated audio hub for their desk rather than a portable device for on-the-go use.
Which option is best for Apple users?
The Questyle Sigma Portable DAC Amp is certified for Apple compatibility. It features Bluetooth 5.4 and a 4.4mm balanced output. This small device offers desktop-class power in a pocket-sized body, making it ideal for listeners who need strong drive capability without carrying large equipment.
What is the most budget-friendly wireless DAC?
The FiiO BTR17 is listed as the best budget option. It delivers high-resolution audio with Bluetooth 5.4 and detailed EQ control. The unit includes a 4.4mm balanced output and supports LDAC. This model prioritizes sound clarity and codec support in a portable form factor.
Does the FiiO BTR7 support modern Bluetooth versions?
The FiiO BTR7 Portable DAC Amp does not list a specific Bluetooth version in its specifications. It focuses on balanced output and high-resolution codec support, including LDAC. This model suits users who value dual jack formats and audio fidelity over the newest wireless connectivity standards.
Which DAC has the smallest footprint?
The FiiO BTR7 measures 1.56 inches in length and 0.57 inches in width. It weighs 1.59 ounces. This compact size makes it highly portable. The Questyle Sigma is also small, measuring 2.75 inches wide, but the BTR7 offers a tighter profile for pocket storage.
Can I use these DACs with smartphones?
Yes, the Questyle M18i Max, FiiO BTR7, and Questyle Sigma are all specified for use with smartphones. They all feature wireless Bluetooth connections. The Questyle models also include USB-C ports for direct connectivity, ensuring compatibility with modern mobile devices for high-resolution audio playback.