DBX 215S Dual 15 Band Constant Q Graphic EQ

Einfach nur Perfekt

This wonderful EQ is worth far more than it costs. The system: Levinson #39 transport/pre-amp, Levinson #31 amp, NHT 3.3 speakers, Transparent Reference XL cabling throughout. This setup has first class imaging, and it's now in the the best acoustic setting so far. Even so, it is a suburban house with furniture, rugs and display cases. Tested with Stereophile CD 1, there were several peaks and valleys, rather large in the <60Hz range. To the ear, the soundstage would shift a lot with just a little head movement. I've run the stereo in its new home long enough to know its imaging characteristics well for a number of favorites.The dbx 215s is between the pre-amp and amp. All connections are balanced. Before turning it on, the EQ was flattened so I could compare the soundstage before and after. What I hear is remarkable. Consider: audio imaging comes from waveforms whose phase is carefully preserved end-to-end. Any signal processing must, by its nature, delay the signal to do its magic. The 215s keeps wave phase perfectly aligned at all frequencies, at least as far as I could discern by ear or on the screen. There was no difference between the imaging with the EQ in or out. This clearly has sophisticated software on a fast DSP.Back to Stereophile CD 1. I agree with another review here: 15 bands is sufficient for tuning to an acoustic environment. The pass-band transitions are completely clean and phase-pure everywhere that's been tested. I've had two hours of tuning so far and know it can be improved even more. Heck, I'm in my office typing this and <30Hz freqs are propagating into the office as clearly as in the sound room. The reflections in the sound room are asymmetrical; I suppose that's true for everyone. This was managed nicely with left / right tuning, again using Stereophile #1. As the test tones move left and right, the reflective component of each side can be heard. As you adjust the 215s you can hear the changes tune out the reflections. With not much work the system now produces a luscious, tangible, smooth sound that pulls me out of the office to hear a song I know well - in a new way.The stereo is first-tier audio equipment, surprisingly brought to a higher level of performance by this remarkable little EQ at a price point unimaginable 5 years ago. Well done, dbx.

En casa tengo un pequeño equipo que uso para escuchar música en el despacho donde trabajo (Un Topping D50s como DAC, un Caying LA-34 y altavoces Monitor Studio Bronce 2), para mejorar un poco el equipo y reducir los problemas de la sala en el audio decidí compar este ecualizador aunque sea de la gama profesional.La conexión es entre el D50 y el Caying con cables de Jack 6.3 a RCA (logicamente perdiendo el balanceado por el camino) que no dió ningun problema.El uso que le dí fue por medio del programa de freeware REW (Room EQ WIzard) conseguir que las curvas en frecuencia fueran lo mas planas posibles medias mediante un microfono en el lugar de escucha ajustando las ganancias de las 31 bandas del ecualizados y hay que decir que hizo un trabajo estupendo consiguiendo una mejora importante de la calidad del audio compensando las carencias de los altavoces (por bajos por ejemplo por tamaño y posicion cercana a la pared y de medios/altos por reberveraciones en superficies), no notando ninguna perdida de calidad en el sonido al estar en medio de la cadena.Hay que destacar que en mi caso no modifique el sonido original (coloreandolo mediante EQ) sino que solamente trataba de compensar carencias de equipo y sala.Para el coste que supuso una mejora muy notable y muy recomendable (70€ de Dbx en Amazon Warehouse que vino como nuevo y unos 10 euros en dos cables de 6.3 a RCA), el REW es gratis y solo necesitas un microfono de una calidad media/buena (idealmente calibrado) que puede suponer unos 100€ mas si no lo tienes.

Producto de calidad,estoy satisfecho, envio rápido,todo perfecto

Ottimo prodotto che compensa la bassa qualità di casse e/o ampli soprattutto per quanto riguardae le basse frequenze. Bypassandolo e non velocemente utilizzando il tasto dedicato potrete apprezzare notevolmente la differenza generata dallo strumento. Consiglio vivamente l'acquisto