Excellent — let’s do a frequency-band–based breakdown with the ranges you suggested, and map:

• What works well in that band (driver + cabinet combos)

• Quality / effectiveness (good, poor, experimental, etc.)

• Price range (cheap, moderate, high-end, exotic/very expensive)

📊 Loudspeaker Solutions by Frequency Band¶

Frequency points: 10 Hz, 20 Hz, 40 Hz, 60 Hz, 100 Hz, 200 Hz, 800 Hz, 1 kHz, 2 kHz, 3 kHz, 15 kHz, 20 kHz, 30 kHz

• ⬇️ Subsonic (<10 Hz): Tactile transducers, large rotary woofers (experimental fans), structural vibration systems.

• 10–20 Hz (Extreme Low Bass / Infrasonics): Very large dynamic subwoofers in ported, bandpass, or horn enclosures; tactile transducers.

• 20–40 Hz (Deep Bass): Dynamic subwoofers (15–21"), ported or horn-loaded; transmission line designs.

• 40–60 Hz (Upper Sub-Bass): Dynamic woofers in sealed or ported boxes; transmission lines.

• 60–100 Hz (Bass / Kick Drum Range): Woofers (8–12") in sealed or ported enclosures; floor-standing tower speakers.

• 100–200 Hz (Upper Bass / Low Mids): Woofers and mid-woofers (5–8") in sealed or ported enclosures.

• 200–800 Hz (Midrange / Vocal Fundamentals): Dynamic midrange drivers (3–6"); planar magnetic / electrostatic panels for high-end.

• 800 Hz – 1 kHz (Upper Mids, Vocal Presence): Dynamic midrange; AMTs can cross in here; planar magnetic.

• 1–2 kHz (Mid-Treble Transition): Midrange drivers crossing to tweeters; AMTs or ribbons for high-end clarity.

• 2–3 kHz (Treble / Presence Region): Tweeters (domes, ribbons, AMTs); piezos (budget).

• 3–15 kHz (Upper Treble / Detail, “Airiness”): Dome tweeters (silk, metal, beryllium), ribbon tweeters, AMTs, electrostatics.

• 15–20 kHz (Super Tweeter Region): Ribbons, AMTs, supertweeters (beryllium domes, horn-loaded drivers).

• 20–30 kHz (Ultrasonic, Beyond Hearing for Most): Ribbons, AMTs, plasma tweeters.

Prices:

• Tactile shakers = cheap–moderate

• rotary subs = exotic/very expensive.

• “infrasonic” capable subs are expensive ($1k–$10k)

• good 12–18" subs = $300–$2000

• $150–$800 typical for dynamic woofers, Moderate to cheap; even budget systems cover this decently.

• Woofers and mid-woofers (5–8") are Cheap to moderate

• Dynamic cone midrange drivers (3–6") = cheap–moderate

• Planar magnetic / electrostatic panels = high-end

• ribbons/AMTs = higher end

• tweeter Domes = cheap–moderate

• teweters (ribbons/AMT) = high-end

• piezos = budget / cheap

• beryllium, exotic materials = expensive.

• plasma tweeters very expensive.

Quality / effectiveness:

• Anything Subsonic: Poor for airborne sound (air doesn’t couple well at these wavelengths). Only good for feeling vibrations.

• Extreme Low Bass / Infrasonics: good quality requires huge cabinets or multiple subs.

• Subwoofers Very good at low bass with proper cabinet; this is the sweet spot for home theater and EDM subs.

• Price: Moderate to high (good 12–18" subs = $300–$2000).

40–60 Hz (Upper Sub-Bass)¶

• Best solutions: Dynamic woofers in sealed or ported boxes; transmission lines.

• Quality: Easier to reproduce; sealed boxes give tight bass, ported extend lower with more output.

• Price: Moderate ($150–$800 typical).

60–100 Hz (Bass / Kick Drum Range)¶

• Best solutions: Woofers (8–12") in sealed or ported enclosures; floor-standing tower speakers.

• Quality: Most mid-size systems handle this well.

• Price: Moderate to cheap; even budget systems cover this decently.

100–200 Hz (Upper Bass / Low Mids)¶

• Best solutions: Woofers and mid-woofers (5–8") in sealed or ported enclosures.

• Quality: Good; balanced output possible. Room acoustics matter.

• Price: Cheap to moderate.

200–800 Hz (Midrange / Vocal Fundamentals)¶

• Best solutions: Dynamic midrange drivers (3–6"); planar magnetic / electrostatic panels for high-end.

• Quality: Critical range for clarity and naturalness; planar/electrostatic excels here.

• Price: Cones = cheap–moderate; planar/electrostatic = high.

800 Hz – 1 kHz (Upper Mids, Vocal Presence)¶

• Best solutions: Dynamic midrange; AMTs can cross in here; planar magnetic.

• Quality: Most speaker types handle this, but crossover region can cause coloration.

• Price: Similar to above; more about crossover design than raw driver cost.

1–2 kHz (Mid-Treble Transition)¶

• Best solutions: Midrange drivers crossing to tweeters; AMTs or ribbons for high-end clarity.

• Quality: Tricky crossover point; bad design = harshness.

• Price: Wide range; ribbons/AMTs = higher end.

2–3 kHz (Treble / Presence Region)¶

• Best solutions: Tweeters (domes, ribbons, AMTs); piezos (budget).

• Quality: Dome tweeters do well; ribbons/AMTs excel in detail; piezos are cheap but harsh.

• Price: Domes = cheap–moderate; ribbons/AMTs = high.

3–15 kHz (Upper Treble / Detail, “Airiness”)¶

• Best solutions: Dome tweeters (silk, metal, beryllium), ribbon tweeters, AMTs, electrostatics.

• Quality: High quality possible; good tweeters here define system detail.

• Price: Domes = moderate; beryllium, ribbons, AMTs = expensive.

15–20 kHz (Super Tweeter Region)¶

• Best solutions: Ribbons, AMTs, supertweeters (beryllium domes, horn-loaded drivers).

• Quality: Audible for young ears, contributes to “sparkle.”

• Price: High for exotic materials.

20–30 kHz (Ultrasonic, Beyond Hearing for Most)¶

• Best solutions: Ribbons, AMTs, plasma tweeters.

• Quality: Mostly marketing or for high-resolution systems; little perceptual impact.

• Price: Exotic; plasma tweeters very expensive.

30–40 kHz (Ultrasonic Extension)¶

• Best solutions: Plasma tweeters, ribbons, AMTs.

• Quality: Useful for research, not human hearing.

• Price: Exotic/experimental.

40–100 kHz (Far Ultrasonic)¶

• Best solutions: Plasma tweeters, specialized lab transducers, thermoacoustic devices.

• Quality: Not audible; may affect recordings via intermodulation.

• Price: Exotic, lab-grade.

>100 kHz (Beyond Audio)¶

• Best solutions: Thermoacoustic, ultrasonic piezo transducers.

• Quality: Scientific applications (sonar, ultrasound), not music.

• Price: Lab equipment, specialized.

⚡ Summary:

• Below 40 Hz → Dynamic subs + big boxes, or tactile devices ($$$).

• 40 Hz – 200 Hz → Dynamic woofers in standard enclosures (affordable to moderate).

• 200 Hz – 2 kHz → Midrange cones (budget) or planar/electrostatic (high-end).

• 2 kHz – 20 kHz → Tweeters (domes = affordable, ribbons/AMT = high-end).

• 20 kHz+ → Mostly exotic tech, little audible benefit, very expensive.

Do you want me to add cabinet recommendations inline with each band (e.g. “20–40 Hz → ported or horn best, sealed not ideal”)? That way it’s a true “design guide by frequency band.”