Iron Balls
30s preview
- BPM
- 173
- Half-time
- 87
- Open Key
- 8d
- Energy
- 78/100
- Pop
- 4/100
- Length
- 5:19
- Released
- 2016
- Genre
- Drum N Bass
- Loudness
- -6.8 dB
- Dynamics
- 15.8 dB
- ISRC
- GBZSD1600001
Key, BPM and audio features: model-based audio analysis · how we measure · catalogue updated July 2026
Iron Balls: drum n bass, D♭ major (3B), 173 BPM. It reads as dark and driving. The mix is almost entirely instrumental. The master keeps unusual dynamic range for club music (crest 16 dB). A 2016 production that still circulates in sets. Darker than 82% of Calibre's catalogue. In a set it works best as an opener or closing-set piece.
Sonic profile
Frequency spectrum
amplitude · bass → treble
- 31%
- Low
- 30-130 Hz
- 27%
- Low-mid
- 130-570 Hz
- 21%
- Upper-mid
- 570 Hz-2.5 kHz
- 20%
- High
- 2.5-11 kHz
FAQ
What key is Iron Balls in?
Iron Balls by Calibre is in D♭ major, or 3B on the Camelot wheel.
What BPM is Iron Balls?
Iron Balls runs at 173 BPM.
What mixes well with Iron Balls?
From 3B it blends harmonically with 4B, 3A, 2B. Moving to 4B lifts the energy a step.
Is Iron Balls good for peak time?
With energy 78 out of 100 at 173 BPM, it works best as an opener or closing-set piece.
Mixes harmonically
3B → 2B · 4B · 3AFrom 3B, 4B (A♭ major) lifts the energy a step; 3A (B♭ minor) settles into the relative minor; 2B (F♯ major) cools the energy down a step.
How to mix it
In 3B at 173 BPM: 4B (A♭ major) — move to 4B to push the floor harder; 3A (B♭ minor) — switch to 3A for a mood change without losing the groove; 2B (F♯ major) — drop to 2B to bring the room down gently.
Pitch range at ±6%: 163-183 BPM — anything in that window beatmatches without sounding stretched.
Key on the fader: without key lock (Master Tempo on CDJs), above roughly +5% it plays a semitone higher, so treat it as 10B rather than 3B; below -5% it reads as 8B. With key lock on, it stays 3B across the whole range.
Programming: an opener or closing-set piece.
Similar tempo
Within ±3 BPM of 173 — beatmatch without a big tempo pull.
More drum n bass
More from Calibre
Full profile
Other recommendations
Beyond strict key and genre matches: tracks that still sit in beatmatch range of 173 BPM with a compatible energy and groove — candidates for a key jump or a genre crossover.
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