Electro Harmonix Doctor Q Envelope Follower

Electro Harmonix Doctor Q Envelope Follower

Marsoni

M251S

$149.50

Get it in 3 business days with 1 day shipping. Friday, May 29

Electro Harmonix Doctor Q Envelope FollowerLate '70s envelope controlled filter featuring range control and bass guitar toggle knob. Made in the USA. Adds quacky, auto wah style movement to guitar or bass, reacting to your playing dynamics rather than an LFO. Simple Range and Bass Toggle controls let you dial in everything from tight rhythmic funk snaps to looser vowel like sweeps. A long running part of the EHX lineup, its been a go to for players chasing classic 70s filter textures, like

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This guide has been most helpful for all the folks I help prepare for the iTEP test! It gives insight into what each section of the test is looking for along with examples and great tips about actually TAKING the test. In the Writing and Speaking sections, it also gives sample scores and comments from the Master Grader which is very helpful too.

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Reviewed in the United States on August 9, 2019

Thomas J. Shandorf

Dallas, US

★★★★★ 5

Comprehensive, clear and coherent!

Format: Paperback

The iTEP Practice Guide combines a no-nonsense approach to the specific iTEP tests and at the same time offers exercises that task the student with what they need to know. Exercises not only serve the purpose of scoring well, but the overall approach is communicative competence. We use the text in our group and one-to-one classes with very positive--and lasting--results.

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Reviewed in the United States on July 23, 2019

Verified Purchase

Sarah Sofía Ortiz Campos

Draper, US

★★★★★ 1

No recomiendo

Format: Paperback

Muy malo, no vine completo, además se demoró mucho más de lo que decía al momento de comprarlo. Solo aplazaban la fecha de entrega sin consultar cómo afectaba al cliente. Yo tuve que presentar el examen sin el libro, porque no llegó en la fecha que decía al comprarlo y después se cambió 3 veces la fecha, casi cumpliendo el mes.

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Reviewed in the United States on December 30, 2025

Verified Purchase

Ryan F

San Leandro, US

★★★★★ 5

Great Book

Format: Hardcover

Great book

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Reviewed in the United States on July 2, 2025

Verified Purchase

Amazon Customer

Charlottesville, US

★★★★★ 5

Great read. Tons of info.

Format: Hardcover

We really like this book. A great background and detailed info on this topic. Really like the real-world examples and application. Pretty exhaustive, as far as that is possible given the topic. Also, quite easy to read, although I confess that if from an engineer's perspective.

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Reviewed in the United States on July 1, 2021