Updated October 2026 · prices checked Oct 10, 2026. The HD 58X is discontinued; the amp advice below is for existing owners, and the second half covers what to buy instead.
Best amp for the HD 58X if you have a DAC: about 9 to 11 V into 150Ω, roughly 13 dB of headroom, under 0.1Ω output impedance.
Best one-box: about 3.9 V from the stock-cable jack, around 6 dB above the HD 58X's 110 dB requirement.
The HD 58X in 2026: Still Worth Amping, No Longer Sold
The Sennheiser HD 58X Jubilee is a 150Ω open-back built on the HD 6XX-family chassis, with a driver derived from the HD 580 lineage. It was sold only through Drop. Drop took its last orders on March 25, 2026 and closed on March 31, so the HD 58X is gone from new retail. Plenty of owners still have one, and used units change hands regularly, which is why this page keeps the amp advice and adds the replacement options below.
If you own an HD 58X, nothing about it has changed. It still wants the same thing it always did: about 2 V of clean signal and a low-output-impedance source.
The Power Math
Sennheiser’s spec for the HD 58X is 104 dB SPL at 1 V and 150Ω. Earlier versions of this page listed it as 104 dB/mW; the published figure is per volt, which works out to about 98 dB/mW. The difference matters: it makes the HD 58X roughly twice as hard to drive as that old number suggested.
- Voltage for 110 dB peaks: 10^((110 − 104)/20) = 2.0 V RMS
- Current: 2.0 / 150 = 13 mA. Power: 2.0² / 150 = 27 mW
- With 6 dB of headroom: 4.0 V, 106 mW
- Output impedance ceiling (Z/8 rule): about 19Ω
That puts the HD 58X between the 120Ω HD 560S (about 1 V for 110 dB) and the 300Ω HD 600/650 (about 2.2 to 2.5 V). A phone or the Apple USB-C dongle at roughly 1 V reaches about 104 dB peaks: listenable at moderate levels, with dynamic peaks compressed when you turn it up.
| Source / amp | Approx. volts into 150Ω | Headroom vs 2.0 V | Verdict |
|---|---|---|---|
| Phone jack / laptop | ~0.5–1 V typical | −6 to −12 dB | Moderate levels only |
| Apple USB-C dongle | ~1 V (ASR measurement) | −6 dB | Usable backup |
| FiiO K11 R2R, 6.35mm | ~3.9 V (derived from FiiO’s 32Ω and 300Ω ratings) | +6 dB | Comfortable |
| JDS Labs Atom Amp 2 | 9.25 V at 150Ω (JDS spec) | +13 dB | Excellent |
| Schiit Magni (Unity) | ~9–11 V (derived from Schiit’s 50Ω and 300Ω ratings) | +13 dB | Excellent |
| Topping DX5 II, 6.35mm | ~8.4–8.7 V (derived from listed 32Ω and 300Ω figures) | +13 dB | Excellent |
Every desktop option clears the requirement. Past about +6 dB, more headroom changes nothing you will hear on this headphone.
Amp Picks for HD 58X Owners
Schiit Magni (Unity), $119. The direct successor to the Magni Heresy, which used to be the default HD 58X amp. Schiit retired the Heresy and Heretic and now sells this single Magni, with three gain settings and output impedance under 0.1Ω. Low gain is the right setting for the HD 58X. Schiit also sells it for $199 with a DAC card.
JDS Labs Atom Amp 2, ~$129. The equivalent alternative, rated at 9.25 V into 150Ω with 0.7Ω output impedance. See today's price for the JDS Labs Atom Amp 2 from JDS ↗
FiiO K11 R2R, ~$170. The one-box option if you don’t own a DAC. The 6.35mm jack gives about 6 dB of headroom with the stock cable, which covers normal-to-loud listening. The HD 58X uses the same two-pin cable connectors as the HD 600/650, so a 4.4mm balanced cable is easy to find if you want more.
Topping DX5 II, ~$299. Only if you plan to add a harder load, such as a planar or a 300Ω Sennheiser. For the HD 58X alone it is far more amp than needed.
Tube amps. The HD 58X is often grouped with the HD 6XX as a tube-friendly headphone, but the numbers are less kind to it. Its Z/8 ceiling is about 19Ω; OTL tube amps like the Schiit Valhalla 3 start at 25Ω (low gain) and go to 60Ω, and the Bottlehead Crack sits around 120Ω. The resulting bass change is larger than on a 300Ω headphone. It can still sound pleasant, but if tubes are the goal, the HD 6XX or HD 650 is the better canvas. More in tube amp vs solid state .
What not to buy: the old picks from this page. The Magni Heresy, Asgard 3 and Modi Multibit are all discontinued; FiiO’s E10K is an old design with little reason to choose it over a ~$9 dongle or the amps above.
What to Buy Now That the HD 58X Is Gone
If you came here shopping for an HD 58X, these are the realistic options in October 2026:
| Headphone | Price (Oct 2026) | Impedance / sensitivity | Volts for 110 dB | Amp needed? |
|---|---|---|---|---|
| Sennheiser HD 560S | ~$200 on sale ($279.95 list) | 120Ω, 110 dB/V | ~1.0 V | Optional |
| Sennheiser HD 550 | ~$200 on sale ($349.95 list) | 150Ω, 106.7 dB/V (retailer spec listings) | ~1.5 V | Recommended |
| Sennheiser HD 6XX | $219.95, last stock at Sennheiser US | 300Ω, ~103 dB/V | ~2.2 V | Yes |
| Sennheiser HD 600 | ~$350 on sale ($499.95 list) | 300Ω, 97 dB/mW | ~2.45 V | Yes |
HD 560S: the easy, most-reviewed replacement. It needs about half the voltage of the HD 58X and works from a dongle at normal levels. Owners and reviewers consistently describe it as leaner and more open-sounding than the 6XX-family headphones, with a wider stage and less midrange warmth. If you liked the HD 58X for its warmth, that is the trade-off to know about. Amp guide: best amp for HD 560S .
See today's price for the Sennheiser HD 560S on Amazon ↗HD 550: the 2025 sibling. It looks almost identical to the HD 560S and sits at the same sale price. At 150Ω and 106.7 dB/V it needs about 1.5 V for 110 dB peaks, so a dongle gets you close and any desktop amp covers it. There is less owner consensus on it yet than on the HD 560S.
See today's price for the Sennheiser HD 550 on Amazon ↗HD 6XX: the closest sound, while it lasts. The HD 6XX is the HD 650 in Drop’s colors, and it is the nearest thing to the HD 58X’s warm, midrange-focused tuning at a similar price. Since Drop closed, the remaining stock is sold only by Sennheiser US at $219.95, and it is unlikely to come back once it sells out. It is a 300Ω headphone, so budget for an amp: see the HD 650 / HD 6XX pairing guide .
See today's price for the Sennheiser HD 6XX from Sennheiser ↗HD 600: the long-term reference. More neutral than the HD 58X, in production since 1997, and fully repairable. Also 300Ω, so it needs an amp: best amp for HD 600 .
Complete Setups at Today’s Prices
| Setup | Approx. total | Notes |
|---|---|---|
| Existing HD 58X + Schiit Magni (Unity) with DAC card | $199 | Everything the HD 58X needs in one box |
| Existing HD 58X + FiiO K11 R2R | ~$170 | One box, comfortable headroom on the stock cable |
| HD 560S + FiiO K11 R2R | ~$370 | Easiest new replacement; the amp is optional at first |
| HD 6XX + Schiit Magni (Unity) with DAC card | ~$420 | Closest new sound to the HD 58X, while stock lasts |
What Owners Say (as of October 2026)
Across r/headphones and Head-Fi, HD 58X owners have long described it as a slightly more bass-present, slightly easier-to-drive cousin of the HD 6XX, and the common advice has been the same as for the 6XX: a neutral desktop amp first, tubes only if you know you want them. Since Drop closed, the most common question in those threads is what to buy instead, and the most common answers are the HD 6XX (for the sound) and the HD 560S (for the price and ease of driving).
Related: Best amp for HD 650 / HD 6XX · Best amp for HD 600 · Best amp for HD 560S · Best open-back headphones under $200