Hola,

Del bajo eléctrico comentan que la nota más grave llega hasta 35 Hz; aquí algunas grabaciones con frecuencias hasta 16 Hz. :

* Bass Outlaws: Illegal Bass [Newtown NTN2210]. Track 12 features ultra-loud bass in the low to sub 20Hz range.
* Enya: Watermark [Geffen 242332-3]. Track 10, "The Longships," features bass from 20Hz to the low 30s.
* Hindemith: Organ Works [Argo 417 159-2]. Track 5 at 4:45 features a 19Hz note that is 6dB louder than the highest level anywhere else on the disc.
* Mendelssohn: Organ Works [Argo 414 420-2]. Extremely loud 19Hz tones on track 8 -- proceed with caution!
* Mussorgsky: Pictures at an Exhibition [Dorian DOR 90117]. Tracks 5 and 15 feature the best bass.
* Prokofiev: Alexander Nevsky [London 410 164-2]. 25Hz bass from the lowest-tuned conventionally-sized bass drum.
* Reference Recordings HDCD Sampler[RR-S3CD]. Tracks 1 and 3 feature tight and gut-shaking drum strokes without overhang.
* Respighi: Pines of Rome [London 410 145-2]. Track 4 at 1:22 and 2:29 features a pure 22Hz tone.
* Saint-Saens: Organ Symphony [Philips 412 619-2]. Nine minutes into track 2 features deep bass down to16Hz.
* Star Tracks II [Telarc CD80146]. Track 2 features extremely deep bass about one minute into the track.
* Thom Rotella Band [DMP CD-650]. One minute into track 12 features a bass guitar solo that illustrates superb bass transients.
* Jennifer Warnes: The Hunter [Private Music 01005-82089-2]. Tracks 8 and 9 feature loud, tight mid to low bass.
* The Ruffatti Organ in Davis Symphony Hall [Telarc CD80097]. Tracks 1 and 11 feature sub-20Hz bass.
Para quien tenga ecualizador en los canales de su receptor.
Que se puede conseguir según que frecuencia toques http://www.mio.co.za/printpage.php?id=76

Frequency Uses
50Hz
1. Increase to add more fullness to lowest frequency instruments like foot, toms, and the bass.
2. Reduce to decrease the "boom" of the bass and will increase overtones and the recognition of bass line in the mix. This is most often used on loud bass lines like rock.
100Hz
1. Increase to add a harder bass sound to lowest frequency instruments.
2. Increase to add fullness to guitars, snare.
3. Increase to add warmth to piano and horns.
4. Reduce to remove boom on guitars & increase clarity.
200Hz
1. Increase to add fullness to vocals.
2. Increase to add fullness to snare and guitar ( harder sound ).
3. Reduce to decrease muddiness of vocals or mid-range instruments.
4. Reduce to decrease gong sound of cymbals.
400Hz
1. Increase to add clarity to bass lines especially when speakers are at low volume.
2. Reduce to decrease "cardboard" sound of lower drums (foot and toms).
3. Reduce to decrease ambiance on cymbals.
800Hz
1. Increase for clarity and "punch" of bass.
2. Reduce to remove "cheap" sound of guitars
1.5KHz
1. Increase for "clarity" and "pluck" of bass.
2. Reduce to remove dullness of guitars.
3KHz
1. Increase for more "pluck" of bass.
2. Increase for more attack of electric / acoustic guitar.
3. Increase for more attack on low piano parts.
4. Increase for more clarity / hardness on voice.
5. Reduce to increase breathy, soft sound on background vocals.
6. Reduce to disguise out-of-tune vocals / guitars
5KHz
1. Increase for vocal presence.
2. Increase low frequency drum attack ( foot / toms).
3. Increase for more "finger sound" on bass.
4. Increase attack of piano, acoustic guitar and brightness on guitars (especially rock guitars).
5. Reduce to make background parts more distant.
6. Reduce to soften "thin" guitar.
7KHz
1. Increase to add attack on low frequency drums ( more metallic sound ).
2. Increase to add attack to percussion instruments.
3. Increase on dull singer.
4. Increase for more "finger sound" on acoustic bass.
5. Reduce to decrease "s" sound on singers.
6. Increase to add sharpness to synthesizers, rock guitars, acoustic guitar and piano.
10KHz
1. Increase to brighten vocals.
2. Increase for "light brightness" in acoustic guitar and piano.
3. Increase for hardness on cymbals.
4. Reduce to decrease "s" sound on singers.
15KHz
1. Increase to brighten vocals (breath sound).
2. Increase to brighten cymbals, string instruments and flutes.
3. Increase to make sampled synthesizer sound more real.


¿Creeis que se pierde mucho por debajo de 60 Hz ?
Bajo, bombo, órgano, percusión, sonidos de sintetizador son algunos sonidos que oigo mejor con el subwoofer.

¿Es conveniente el uso del sub para reproducir esos sonidos?
Si tus altavoces llegan hasta 50-60 Hz, todo lo que esté en el límite y más abajo, mejor por el subwoofer.

¿Sirve la sala como ayuda para "bajar" mas ó por el contrario cuando una caja alcanza su limite( en las especificaciones tecnicas ) "ya no baja mas "?¿Cuando llega una caja a su limite, distorsiona ?
Mis cajas, las AP3 (Vifa), bajan hasta 55 Hz.
Oyendo 'Tubular bells 3', al principio de la primera pieza hay una entrada de percusión electrónica que sonaba a 'crock'.
Supe como sonaba gracias al sub. Antes distorsionaba.

Los altavoces van más descansados sin tener que gastar corriente en reproducir esas frecuencias; los medios y agudos ganan un poco.
Es de la única forma que he comprobado aquello del escenario - amplitud y profundidad -, desaparición de altavoces y microdinámica.

Un saludo.