iFi audio GO pod + IEMs = brilliant wireless sound on the GO!
Plug a pair of ‘GO pod’ wearable Bluetooth DAC/amps into high-performance IEMs to make the
best-sounding true wireless in-ear headphones in the world.
Above iFi’s ‘GO pod’ wearable Bluetooth DAC/headphone amp, connected to Symphonium Meteor IEMs
Southport, England – Joining iFi’s GO series of ultraportable headphone enhancers, the GO pod is a pair of wearable Bluetooth DAC/headphone amps designed to make any pair of corded in-ear monitors (IEMs) wireless. Given the quality of the GO pod’s circuitry, when combined with a well-chosen pair of high-performance IEMs, the resulting sound is far in advance of any ‘true wireless’ earbuds or Bluetooth headphones.
Using a pair of GO pods is simple. First, detach the cable from your favourite IEMs and connect the earpieces to the left and right pods. Then, pair the pods with your source device (a smartphone, for example) and hook the ergonomically designed ear loops behind your ears to ensure a comfortable fit… the result is unrivalled TWS (True Wireless Stereo) headphone sound.
To launch the GO pod, iFi is partnering with some of the world’s finest manufacturers of high-performance IEMs to make curated ‘GO Pod + IEM’ packages. Spanning both new and established models from 64 Audio, Craft Ears, Meze Audio, Symphonium and Westone, these special collaborations have produced six world-class pairs of TWS in-ear headphones.
Hi-fi separates for your ears
Comparing true wireless earbuds to the GO pod combined with a pair of high-performance IEMs is like comparing a smart speaker or all-in-one music system to a hi-fi separates system with a pair of well-chosen speakers. Sure, a smart speaker is compact and convenient, but a separates system delivers sound quality in an entirely different league.
True wireless earbuds – even the more expensive ones – rely on SoC (system on a chip) solutions to integrate the requisite tech into a tiny space. From a high-performance audio point of view, this is not ideal; amalgamating critical stages such as Bluetooth decoding, digital-to-analogue conversion and amplification saves space and reduces cost, but compromises sound quality.
The GO pod’s pliable ear loop hooks behind the listener’s ear
The GO pod is distinctly different. Each of these critical stages is designed separately and optimised individually to ensure excellent sound quality – like an audio system made from individual hi-fi components. In addition, much like top-level hi-fi speakers, high-quality corded IEMs are engineered for sonic excellence, combining multiple high-tech drive units to transmit sound directly into your ear canal. Connect a pair of these IEMs to the GO pod and it’s no wonder that the resulting sound is so much better than regular true wireless earbuds, given the level of audio engineering involved.
Stage 1: Bluetooth
iFi has gone to great lengths to ensure its Bluetooth technology is state-of-the-art throughout its product range, earning it a class-leading reputation. The GO pod continues this uncompromising approach, including certification for Qualcomm’s Snapdragon Sound platform and Bluetooth 5.2 for optimum range, speed and reliability. Bluetooth processing is handled by Qualcomm’s top-tier QCC5144 module, with its 32-bit, quad-core architecture and low power draw delivering excellent wireless audio performance whilst minimising drain on the GO pod’s battery.
As always with iFi’s Bluetooth audio devices, the GO pod is compatible with an impressive array of high-definition Bluetooth formats. LDAC and LHDC (HWA) are both supported to their maximum 32-bit/96kHz specifications, with LDAC’s highest 990kbps bitrate available to users of Android devices that support Snapdragon Sound (660kbps with other LDAC-enabled devices).
Qualcomm’s 24-bit aptX HD and aptX Adaptive formats are also covered, offering sample rates of up to 48kHz and 96kHz respectively, with the additional benefit of QHS (Qualcomm High Speed) providing an extra 300kbps of bandwidth. Other supported codecs include aptX Low Latency, regular aptX, AAC and SBC. This means that every possible source device is handled at the highest audio resolution its Bluetooth specification allows.
iFi’s GO pod turns any pair of high-performance IEMs into brilliant sounding true-wireless in-ear headphones
Another Qualcomm technology enabled in the GO pod is TrueWireless Mirroring. Although appearing as a single device when paired, both the left and right pods can receive Bluetooth signals – but only the one with the strongest connection acts as the receiver while the other mirrors the connected pod. If the listener moves position and the connection to the mirroring pod becomes stronger, they swap over so the mirroring pod becomes the receiver without interrupting the audio signal. Similarly, if the receiving pod is removed from the listener’s ear, the other pod becomes the receiver, ensuring a seamless true wireless stereo experience.
Stage 2: DAC
In addition to Bluetooth processing, Qualcomm’s QCC5144 chipset can be configured to perform digital-to-analogue conversion and headphone amplification too – but this is not the iFi way. Though more complicated and costly to design, the sonic benefits of separate, individually optimised DAC and amp stages are far more valuable to iFi than the savings made by one-chip-does-all solutions.
To that end, the GO pod incorporates two Cirrus Logic MasterHIFI chips – one in the left pod, the other in the right. This 32-bit hi-res DAC chip is dedicated to single-channel digital-to-analogue signal conversion in the GO pod’s circuit design, combining with a jitter-eradicating precision clock to deliver ultra-low distortion and high dynamic range – one of the key reasons why the GO pod unlocks better sound quality than true wireless earbuds.
Another factor is the hardware-based analogue volume control. The GO pod doesn’t rely on the software-based volume controls in connected digital devices, which can have a deleterious effect on audio resolution. Instead, adjusting the volume on the connected device controls the volume level in the DAC, rather than in the phone, tablet or computer.
To minimise pre-echoes and ringing artifacts, the DAC is designed with proprietary digital-interpolation filters that support multiple digital filter responses. This enables the GO pod to offer five filter settings, user-selectable to suit personal taste, musical style and format type – no true wireless earbuds offer such a facility.
Stage 3: amplification
Delivering a balanced output signal to each connected earpiece – another first for the TWS in-ear headphone scene – the GO pod’s amp stage has been carefully deigned to ensure ultra-low distortion and a silent background with high-sensitivity IEMs. With a power output of 120mW into 32 ohms, and an output voltage of 4V into high-impedance 300-ohm loads, each GO pod supplies plenty of gas to drive any connected IEM with consummate ease, without rapidly draining the internal battery.
To ensure its output perfectly matches the connected IEM, each pod auto-detects the IEM’s impedance and adjusts power accordingly. There are four settings – 16 ohms, 32 ohms, 64 ohms and 300 ohms – with the setting most appropriate to the connected IEM selected automatically.
Those familiar with iFi audio devices will know that the company uses discrete, high-grade components in its circuit designs, and the same is true of the GO pod. Devices such as TDK C0G multilayer ceramic capacitors and inductors from Taiyo Yuden and Murata deliver qualities such as low ESR (Equivalent Series Resistance) and high linearity, paying great dividends in terms of sound quality.
Plug a pair of ‘GO pod’ wearable Bluetooth DAC/amps into high-performance IEMs to make the
best-sounding true wireless in-ear headphones in the world.
Above iFi’s ‘GO pod’ wearable Bluetooth DAC/headphone amp, connected to Symphonium Meteor IEMs
Southport, England – Joining iFi’s GO series of ultraportable headphone enhancers, the GO pod is a pair of wearable Bluetooth DAC/headphone amps designed to make any pair of corded in-ear monitors (IEMs) wireless. Given the quality of the GO pod’s circuitry, when combined with a well-chosen pair of high-performance IEMs, the resulting sound is far in advance of any ‘true wireless’ earbuds or Bluetooth headphones.
Using a pair of GO pods is simple. First, detach the cable from your favourite IEMs and connect the earpieces to the left and right pods. Then, pair the pods with your source device (a smartphone, for example) and hook the ergonomically designed ear loops behind your ears to ensure a comfortable fit… the result is unrivalled TWS (True Wireless Stereo) headphone sound.
To launch the GO pod, iFi is partnering with some of the world’s finest manufacturers of high-performance IEMs to make curated ‘GO Pod + IEM’ packages. Spanning both new and established models from 64 Audio, Craft Ears, Meze Audio, Symphonium and Westone, these special collaborations have produced six world-class pairs of TWS in-ear headphones.
Hi-fi separates for your ears
Comparing true wireless earbuds to the GO pod combined with a pair of high-performance IEMs is like comparing a smart speaker or all-in-one music system to a hi-fi separates system with a pair of well-chosen speakers. Sure, a smart speaker is compact and convenient, but a separates system delivers sound quality in an entirely different league.
True wireless earbuds – even the more expensive ones – rely on SoC (system on a chip) solutions to integrate the requisite tech into a tiny space. From a high-performance audio point of view, this is not ideal; amalgamating critical stages such as Bluetooth decoding, digital-to-analogue conversion and amplification saves space and reduces cost, but compromises sound quality.
The GO pod’s pliable ear loop hooks behind the listener’s ear
The GO pod is distinctly different. Each of these critical stages is designed separately and optimised individually to ensure excellent sound quality – like an audio system made from individual hi-fi components. In addition, much like top-level hi-fi speakers, high-quality corded IEMs are engineered for sonic excellence, combining multiple high-tech drive units to transmit sound directly into your ear canal. Connect a pair of these IEMs to the GO pod and it’s no wonder that the resulting sound is so much better than regular true wireless earbuds, given the level of audio engineering involved.
Stage 1: Bluetooth
iFi has gone to great lengths to ensure its Bluetooth technology is state-of-the-art throughout its product range, earning it a class-leading reputation. The GO pod continues this uncompromising approach, including certification for Qualcomm’s Snapdragon Sound platform and Bluetooth 5.2 for optimum range, speed and reliability. Bluetooth processing is handled by Qualcomm’s top-tier QCC5144 module, with its 32-bit, quad-core architecture and low power draw delivering excellent wireless audio performance whilst minimising drain on the GO pod’s battery.
As always with iFi’s Bluetooth audio devices, the GO pod is compatible with an impressive array of high-definition Bluetooth formats. LDAC and LHDC (HWA) are both supported to their maximum 32-bit/96kHz specifications, with LDAC’s highest 990kbps bitrate available to users of Android devices that support Snapdragon Sound (660kbps with other LDAC-enabled devices).
Qualcomm’s 24-bit aptX HD and aptX Adaptive formats are also covered, offering sample rates of up to 48kHz and 96kHz respectively, with the additional benefit of QHS (Qualcomm High Speed) providing an extra 300kbps of bandwidth. Other supported codecs include aptX Low Latency, regular aptX, AAC and SBC. This means that every possible source device is handled at the highest audio resolution its Bluetooth specification allows.
iFi’s GO pod turns any pair of high-performance IEMs into brilliant sounding true-wireless in-ear headphones
Another Qualcomm technology enabled in the GO pod is TrueWireless Mirroring. Although appearing as a single device when paired, both the left and right pods can receive Bluetooth signals – but only the one with the strongest connection acts as the receiver while the other mirrors the connected pod. If the listener moves position and the connection to the mirroring pod becomes stronger, they swap over so the mirroring pod becomes the receiver without interrupting the audio signal. Similarly, if the receiving pod is removed from the listener’s ear, the other pod becomes the receiver, ensuring a seamless true wireless stereo experience.
Stage 2: DAC
In addition to Bluetooth processing, Qualcomm’s QCC5144 chipset can be configured to perform digital-to-analogue conversion and headphone amplification too – but this is not the iFi way. Though more complicated and costly to design, the sonic benefits of separate, individually optimised DAC and amp stages are far more valuable to iFi than the savings made by one-chip-does-all solutions.
To that end, the GO pod incorporates two Cirrus Logic MasterHIFI chips – one in the left pod, the other in the right. This 32-bit hi-res DAC chip is dedicated to single-channel digital-to-analogue signal conversion in the GO pod’s circuit design, combining with a jitter-eradicating precision clock to deliver ultra-low distortion and high dynamic range – one of the key reasons why the GO pod unlocks better sound quality than true wireless earbuds.
Another factor is the hardware-based analogue volume control. The GO pod doesn’t rely on the software-based volume controls in connected digital devices, which can have a deleterious effect on audio resolution. Instead, adjusting the volume on the connected device controls the volume level in the DAC, rather than in the phone, tablet or computer.
To minimise pre-echoes and ringing artifacts, the DAC is designed with proprietary digital-interpolation filters that support multiple digital filter responses. This enables the GO pod to offer five filter settings, user-selectable to suit personal taste, musical style and format type – no true wireless earbuds offer such a facility.
Stage 3: amplification
Delivering a balanced output signal to each connected earpiece – another first for the TWS in-ear headphone scene – the GO pod’s amp stage has been carefully deigned to ensure ultra-low distortion and a silent background with high-sensitivity IEMs. With a power output of 120mW into 32 ohms, and an output voltage of 4V into high-impedance 300-ohm loads, each GO pod supplies plenty of gas to drive any connected IEM with consummate ease, without rapidly draining the internal battery.
To ensure its output perfectly matches the connected IEM, each pod auto-detects the IEM’s impedance and adjusts power accordingly. There are four settings – 16 ohms, 32 ohms, 64 ohms and 300 ohms – with the setting most appropriate to the connected IEM selected automatically.
Those familiar with iFi audio devices will know that the company uses discrete, high-grade components in its circuit designs, and the same is true of the GO pod. Devices such as TDK C0G multilayer ceramic capacitors and inductors from Taiyo Yuden and Murata deliver qualities such as low ESR (Equivalent Series Resistance) and high linearity, paying great dividends in terms of sound quality.
