# Sound Master Custom Tube > Virtual tube guitar amplifier plugin for classic American tones and distortion. (iPhone/iPad app by Nembrini Audio.) - Source: https://appshunter.io/ios/app/sound-master-custom-tube/id1517828068 (this page in markdown: same URL + `.md`) - Developer: [Nembrini Audio](https://appshunter.io/developer/1493296895) - Category: Music - Price: $19.99 - Rating: 4.90/5 from 15 App Store ratings · 6 written reviews indexed - Age rating: 4+ - Requires: iOS 9.3 · 68 MB - Released: 2020-06-30 - Data updated: 2026-07-18 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/sound-master-custom-tube/id1517828068/reviews.md ## What is Sound Master Custom Tube? The Sound Master Custom Tube Guitar Amplifier plugin is born to reproduce in your virtual rig the classic American guitar amplifier sounds. Based on a custom shop dual channel 100 watt hand made and point-to-point wired all tube head, the Sound Master Custom Tube Guitar Amplifier is a tone lab plugin capable of reproducing classic guitar sounds and beyond. From clean tones to heavily overdriven distortion, the Sound Master Custom Tube Guitar Amplifier plugin has two separate channel with independent volume and tone controls: - Channel A is pure American tone with the most beautiful sparkling cleans - Channel B has a separate Gain and Master Volume knobs so you can drive the preamp for more aggressive sounds. The Sound Master Custom Tube Guitar Amplifier includes a complete recording chain emulation and our custom design noise gate circuit. Works as a standalone app, AudioUnit v3 effect, or Inter-App Audio effect ## Key features - Dual-channel tube amplifier emulation - Clean to heavily overdriven tones - Independent volume and tone controls - Recording chain emulation - Custom noise gate circuit - Standalone, AudioUnit v3, and Inter-App Audio support ## Recent user reviews (6 of 6) All indexed reviews: https://appshunter.io/ios/app/sound-master-custom-tube/id1517828068/reviews.md ### 3/5 — Getting LOTS of feedback *2020-10-23, version 1.0* Don’t want to give you a bad review because I own most of your and auv3. They’ve all surpassed expectation. Sound master has fallen short though, everything sounds good but the feedback is on every preset. The noise gate doesn’t seem to filter correctly until it completely blocks sound altogether. I tried turning it off and use garage bands noise gate in congruence with this and still having issues. I use this on an iPhone 8. Let me know what can be done. Thanks Nembrini. Love your apps! ### 5/5 — The wild side of the F3nder *2020-08-03* A wonderful F3nder Amp, it sounds absolutely fantastic! Be sure to keep the volume and input setting (in the Rack window) way down low if you‘re looking for sparkling clean tones. It‘s as responsive as a real amp, that means it takes some time to dial in your sound. ### 5/5 — Makes me want to lay *2020-07-19* As described by the dev, lovely bright clean tones that you can rip up to your hearts content. Basically every time I fire this up, I lose time just playing. Just wish I’d not missed the recent sale as I was going to get the lot, as after demoing them on desktop, I could do the same with any of them with whole new ranges of tone and expression... ### 5/5 — Great Amp *2020-07-02, version 1.0* I think every other Nembrini amp was great, out of the box, so to speak. It is brighter and there is lots of treble as compared to the Cali reverb cleans or the BST 100 where I really like the cleans a lot. These amps sing. This amp is very dynamic and responds to your playing well. It’s just different than the other Nembrini Amps, After a morning of tweaking, the amp is very much responsive and I found great tones in it. 5 stars. You can dial in classic Fender tones. ### 5/5 — Great tone and super responsiveness *2020-07-01, version 1.0* This amp is superb! It is the most versatile and responsive amp sim I’ve ever played in more than 20 years of using software and hardware amp sims. I don’t know why one reviewer was unable to get clean tones out it. I have no problem whatsoever in doing that. And, the grind is there in bucketloads when I want it. The responsiveness to playing dynamics is out of this world! Good players will LOVE how much expressiveness you can get out of it. Sloppy players (like me) will realize they need to go back to the woodshed to tame their technique (or simply add some compression to the signal chain). There is a LOT of treble in this. That’s a great thing for when you need it to cut through a mix, but requires EQ or dialing back the treble drastically on most presets to get the tone I’m more used to. Still, I’d rather have it there when needed. Classic Fender tone? Maybe not so much out of the box, but it can be found. Fantastically pleasing and versatile tone? Bucket loads! ### 5/5 — 10 Stars! Seriously I Own Real Fender Amps and This Baby Has Tone! *2020-07-01, version 1.0* All Nembrini stuff is awesome! I don’t know what that other reviewer was listening to but if you put in trash you can’t expect gold!😱 Got my beloved Strat with gold lace sensors and Wow! Pure tone! I highly recommend this app! MM4C! ## Frequently asked questions about Sound Master Custom Tube ### What kind of guitar tones can I get with Sound Master Custom Tube? Sound Master Custom Tube is designed to reproduce classic American guitar amplifier sounds. You can achieve everything from sparkling clean tones on Channel A to more aggressive, overdriven distortion on Channel B. ### Does Sound Master Custom Tube have ads? Yes, Sound Master Custom Tube contains advertisements. ### What devices is Sound Master Custom Tube compatible with? Sound Master Custom Tube is compatible with iPhone, iPad, and iPod devices. ### How often is Sound Master Custom Tube updated? The latest version, 1.1, was released on September 27, 2021. The app was initially released on June 30, 2020. ### What is the price of Sound Master Custom Tube? Sound Master Custom Tube is available for a one-time purchase of $19.99. ### Can Sound Master Custom Tube be used with other music apps? Yes, Sound Master Custom Tube can be used as a standalone app, an AudioUnit v3 effect, or an Inter-App Audio effect, allowing integration with other compatible music applications. ### What is the age rating for Sound Master Custom Tube? Sound Master Custom Tube has an age rating of 4+, making it suitable for a wide range of users. ### What makes Sound Master Custom Tube's sound unique? It is based on a custom shop dual-channel 100-watt hand-made, point-to-point wired all-tube head, aiming to provide authentic classic American guitar amplifier sounds. ## Version history (last 2 releases) ### 1.1 — 2021-09-27 Support for iOS 15 ### 1.0 — 2020-06-30 No release notes. ## Apps similar to Sound Master Custom Tube | App | Rating | Price | Category | | --- | --- | --- | --- | | [Things - Flip EQ](https://appshunter.io/ios/app/things-flip-eq/id6470745211) | 4.9 (8) | $2.99 | Music | | [Valves - Tube Overdrive](https://appshunter.io/ios/app/valves-tube-overdrive/id6451152227) | 5.0 (15) | $8.99 | Music | | [Outer Space - Tape Echo](https://appshunter.io/ios/app/outer-space-tape-echo/id6473747074) | 5.0 (15) | $9.99 | Music | | [Things - Voice](https://appshunter.io/ios/app/things-voice/id6470745112) | 5.0 (8) | $2.99 | Music | ## More apps by Nembrini Audio - [Crunck V2 Guitar Amplifier](https://appshunter.io/ios/app/crunck-v2-guitar-amplifier/id1493297046) - [Analog Rack Delay](https://appshunter.io/ios/app/analog-rack-delay/id1494455748) - [Analog Rack Cleaner](https://appshunter.io/ios/app/analog-rack-cleaner/id1497168997) - [Analog Rack Noise Gate](https://appshunter.io/ios/app/analog-rack-noise-gate/id1497433620) - [Analog Rack Chorus](https://appshunter.io/ios/app/analog-rack-chorus/id1497433866) - [Analog Rack Guitar Equalizer](https://appshunter.io/ios/app/analog-rack-guitar-equalizer/id1497464815) All apps by Nembrini Audio: https://appshunter.io/developer/1493296895 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-18.*