Keeley Memphis Sun Lo-Fi Reverb, Echo and Double-Tracker Pedal

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Keeley Memphis Sun Lo-Fi Reverb, Echo, and Double Tracker Pedal

Head into the Memphis Sun and bask in the tones of the 1950s! Studio sounds of the 1950s and more. Small Room Reverb, Slapback Echo, Futuristic Double Tracking.


MEMPHIS SUN!

The new Memphis Sun – Lo-Fi Reverb, Echo and Double-Tracker is their second studio themed pedal. Like the Keeley 30ms ADT this pedal gives you a wealth of tones for capturing that classic Rock-and-Roll sound as well as sounds you’ve not heard before. It’s NeoVintage. It’s an Echo and Reverb pedal.
Toggle through the different effects presets:


SLAPBACK 600 – Echo for long delays

• SUN MODE – Auto Track-Doubling and slapback with short delays
• ROOM – Studio simulation reverb
• Both of the ECHO 600 and SUN MODE effects have a Room Reverb.

It’s a one-knob, rock and roll type of room reverb.


SLAPBACK 600

Rock and Roll is the Devil’s music, right? So of course they made the delay time up to 666ms to simulate some unearthly echo machine that never really existed. Filtering in the Slackback mode is done in stages. First, they heavily filter the response at 1 kHz then compress the thing. Remember the concept: pack a bunch of sound in a small room and it compresses. Next, they filter it again at 1 kHz ! Sounds like Rock and Roll, right? Aaron Tackett is their Rock and Roll Doctor of DSP here at Keeley. Not only is he devilishly good looking, he has a way of making waves look good — adding curves so to speak. He has added 2nd and 3rd order harmonics to this mix to simulate tape response and equipment distortions. Waves folded back on themselves. You’re gonna love his curves.


Time – 30-666ms

• Regen – As Jack White says: “Three.” Up to three repeats. Or sometimes six...
• Reverb – Old Rock-and-Roll Room Reverb.


Sun Mode

Let’s Do it Twice Mama, It’s Alright! Automatic Double Tracking (ADT) was not available in the 1950s, but they sneak it in here because it makes a wonderful sound. And, if you lengthen the time, it goes right into slapback territory which is at the heart of Country and Rock and Roll guitar sounds. Like their Keeley 30ms, this pedal will do ADT. The Memphis Sun creates a vintage-voiced double-track in mono. Your guitar-playin’ “Gemini-Twin” has a very warmed-up tone. Adjusting the Time Control lets you easily create anything from Double Tracking to Slapback with up to 180ms of delay time.

• Time – Delay Time is 0-180ms. For Automatic Double-Tracking set this control at the second mark or lower, 0-30ms. For slapback echo 30-180ms sounds great. The knob markers notate 0,30,60, 90, 120, 150, and 180ms
• Regen – Modulation for the ADT. Set to OFF for NO Rate or Depth. Increasing this control increases both the Rate and Depth of “Tape” modulation.
• Reverb – It’s Still Rock-and-Roll Room Reverb to Me


Room

The Room Reverb simulates a small 33' by 18' asbestos-tiled room so filled with music the sounds actually get compressed. They take into account the frequency response of the mics used back then. The RCA 77 is loosely simulated by a group of filters including a HPF = 300 Hz and LPF = 8 kHz. Many artifacts are incorporated in their room reverb. And second and third order harmonics are added to make sure it sounds just right.

• Time is the Pre-Delay amount: 0-150ms of pre-delay. This allows for a slapback sound as the first reflections come into focus.
• Regen is the Tone control: this is an active filter +/- 10 dB and is centered around 1.1 kHz.
• Reverb is the Depth control for the reverberations.