Audio DB · Full specs
| Series | UP |
| Form | Bluetooth Transmitter |
| Weight | 3 g |
| ANC | No |
| Microphone | No |
| Bluetooth | 5.4 |
| Codecs | aptX Lossless, LDAC, aptX Adaptive, aptX HD, AAC, SBC |
| Inputs / Outputs | USB-C in · 3.5mm / optical out |
Acoustic specs
iFi Audio UP Play Max is iFi Audio’s Bluetooth Transmitter, reference price $89. Maker-published: (the maker publishes none of the headline figures).This review covers specs and connectivity only — no listening impressions.
1. Where it sits among its peers
We only track 1 Bluetooth Transmitter so far — too few to rank. This is a single-unit spec review; rankings come once the category passes 10.
2. How to read the numbers
We only track 1 Bluetooth Transmitter so far — too few to rank. This is a single-unit spec review; rankings come once the category passes 10.
3. Connections and use cases
Inputs/outputs: USB-C in · 3.5mm / optical out. Bluetooth 5.4. Codecs: aptX Lossless, LDAC, aptX Adaptive, aptX HD, AAC, SBC. Weight 3 g — portable.
4. Against its peers
We only track 1 Bluetooth Transmitter so far — too few to rank. This is a single-unit spec review; rankings come once the category passes 10.
5. Weaknesses worth stating
- No output power published — the one figure that says what headphones it can drive; without it you can only judge by connections and gain.
- No SNR figure, so the noise floor cannot be judged.
6. Who it is for — and who it is not
- People who carry gear: light and connection-friendly.
- Anyone unsure what it can drive: output power is missing, so confirm before buying.
Data note: every figure comes from maker-published specs recorded in our database (output power, SNR, THD, DAC chip, sampling rate, connections). No inferred values, no listening impressions; missing figures show as “—”.