MAX D2 vs SpotEQ31

Adjustable crossover ( HPF / LPF / BPF from 20 Hz to 20 kHz ) Selectable crossover slopes ( 6 to 48 dB/oct ) Crossover types ( Bessel / Butterworth / Linkwitz-Riley ) Equalizer ( 10 x 31 bands ) Time alignment ( 0-20 ms / 0-692 cm / 0-272" ) Selectable phase shift ( 0 or 180 degrees ) 6 Memory presets

SpotEQ31 — Professional 7-31 Band Equalizer Take complete control of your sound with one of the most precise equalizers on the App Store. Whether you're a casual listener, an audio enthusiast, or someone compensating for hearing loss, SpotEQ31 gives you the tools to shape audio exactly the way you want. WHAT MAKES SPOTEQ31 UNIQUE: DOUBLE-SIDED EQ Unlike standard equalizers, SpotEQ31 lets you pinpoint a specific frequency band for the LEFT or RIGHT ear independently. This is a game-changer for: • Users with asymmetric hearing loss • People with one ear more sensitive than the other • Headphones with uneven left/right frequency response • Audio enthusiasts who need surgical precision Few other consumer equalizers offer this level of per-side control. CHOOSE YOUR PRECISION Pick the band count that fits your needs: • 7 bands — quick adjustments • 11, 15, or 21 bands — everyday fine-tuning • 31 bands — studio-grade control • Unlock up to 41 bands with custom set frequency bands Adjustable Hz configurations let you decide exactly which frequencies each band targets. BUILT-IN MEDIA & PODCAST PLAYER SpotEQ31 includes a full media player and podcast browser, so you can enjoy your music and shows with your custom EQ applied — no extra app required. Search podcasts, build playlists, and listen with your sound, tuned your way. CORE FEATURES (FREE) • Multi-band parametric equalizer (7-31 bands) • Multiple built-in sound presets • Audio visualizer • Balance control • Pre-gain volume boost • Media player, podcasts, music library, 3 custom playlists BASIC FEATURES (ONE-TIME PURCHASE) Unlock more power without a subscription: • Remove all ads • Save 3 custom presets • Custom Hz configuration (up to 41 bands) • Fine-tune dB • Custom color theme • Setup a EQ starting point from audiogram values • EQ bands control lock • Reset and copy preset tools • Left/right channel mirroring • Use on multiple devices via your Apple ID PREMIUM SUBSCRIPTION For power users who want everything: • Unlimited custom presets • Unlimited Hz EQ configurations • Auto-switch presets when headphones connect • Unlimited media player, playlists and downloads • Increased dB range (up to +/- 40 dB on each band, pre-gain and balance) • Export and import presets • Configurable audio visualizer • Advanced audio effects (reverb, bass boost, 3D sound/virtualizer) • Limiter • Multi-band compressor WHO IS SPOTEQ31 FOR? • Music lovers who want better sound from any headphones • People with hearing loss seeking personalized compensation • Audio enthusiasts and home studio users • Podcast listeners wanting clearer voice playback • Anyone tired of factory-tuned sound WHY SPOTEQ31? Most equalizers give you a single curve applied to both ears. SpotEQ31 recognizes that ears — and headphones — are rarely perfectly matched. By letting you tune each side independently, SpotEQ31 delivers a personalized listening experience no preset alone can match. Combined with 31 bands of resolution, it's a tool serious listeners have been asking for. PRIVACY & SUPPORT We respect your privacy. SpotEQ31 collects only what is needed to deliver the service. Subscription and one-time purchases are handled securely through the App Store. For questions, feedback, or feature requests, reach us via the in-app support link, email or visit spoteq31.com. Download SpotEQ31 now and rediscover your music — one band at a time.