The Symphonium Giant is 7.0Ω at 88.5 dB/mW; the Symphonium Triton is 8.3Ω at 86.2 dB/mW. This page covers what they ask of an amplifier, not how they sound.
The Triton needs 2.3 dB more than the Giant to reach the same loudness — 24 mW against 14 mW.
| Specification | Giant | Triton |
|---|---|---|
| Impedance | 7.0 Ω | 8.3 Ω |
| Sensitivity | 88.5 dB/mW | 86.2 dB/mW |
| Sensitivity (voltage) | 110.0 dB/V | 107.0 dB/V |
| Power for 100 dB | 14 mW | 24 mW |
| Voltage for 100 dB | 0.31 V | 0.45 V |
| Current for 100 dB | 44.9 mA | 53.8 mA |
| Highest source impedance that leaves them alone (one-eighth rule) | 0.88 Ω | 1.04 Ω |
| Sources that reach 100 dB out of 280 | 252 | 229 |
23 of the 280 sources have the power for the Giant but not for the Triton — FiiO SnowSky Tiny A, FiiO BTR11, Hidizs SD2, 20 more.
34 sources are low enough in output impedance for the Triton under the one-eighth rule but not for the Giant (FiiO SnowSky Tiny B, FiiO BTR15, FiiO BTR5 2021, 31 more).
229 of the 280 sources here reach 100 dB on both.
The Triton is more demanding than 86% of the 567 non-electrostatic models in this database; the Giant than 76%.
| dB SPL | Giant power | Giant voltage | Triton power | Triton voltage |
|---|---|---|---|---|
| 80 | 0.14 mW | 31 mV | 0.24 mW | 45 mV |
| 85 | 0.45 mW | 56 mV | 0.76 mW | 79 mV |
| 90 | 1.4 mW | 99 mV | 2.4 mW | 0.14 V |
| 95 | 4.5 mW | 0.18 V | 7.6 mW | 0.25 V |
| 100 | 14 mW | 0.31 V | 24 mW | 0.45 V |
| 105 | 45 mW | 0.56 V | 76 mW | 0.79 V |
| Source | Price | Headroom, Giant | Headroom, Triton | Output impedance | Noise |
|---|---|---|---|---|---|
| FiiO KA11 | $29 | 8.8 dB | 7.2 dB | 0.7 Ω | 1.7 µV |
| FiiO BTR13 | $59 | 5.7 dB | 4.1 dB | 0.6 Ω | 1.0 µV |
| iBasso DC03 Pro | $69 | 1.8 dB | 0.3 dB | 0.12 Ω | 0.9 µV |
Of the 280 sources here, 229 reach 100 dB on both. 44 of them also publish an output impedance low enough for both under the one-eighth rule and a noise figure that stays below the audible-hiss threshold with both.
The cheapest of the 44 is the FiiO KA11, at $29. It leaves 8.8 dB of headroom on the Giant and 7.2 dB on the Triton, its output impedance is 0.7 Ω against a one-eighth limit of 0.88 Ω and 1.04 Ω, and its noise figure puts the hiss floor 25 dB and 28 dB below the 20 dB SPL this site treats as the point where a quiet room stops hiding it.
| Model | As printed | Tolerance | Standard |
|---|---|---|---|
| Giant | 5Hz - 18kHz, ± 2 dB | ±2 dB | not printed |
| Triton | 11Hz - 21kHz, ± 3 dB | ±3 dB | not printed |
Symphonium prints 5Hz - 18kHz, ± 2 dB for the Giant and 11Hz - 21kHz, ± 3 dB for the Triton.
Both sheets print a tolerance, which is rare enough to be worth pointing at: only 58 of the 490 models with a printed range do. These two ranges can be set against each other, because each of them says how far down the response is allowed to be at the ends.
Not a measurement; maker by maker.
Both have a page of their own. In full: Symphonium Giant and Symphonium Triton. Every figure on this page comes from what Symphonium published, or is derived from it — what that maker publishes, counted.