Back Panel not pictured | Kustom QUAD JR manual

1.) Line Output - this is a 3 cond. XLR output jack for plugging into Lo-Z microphone inputs as found on PA or recording mixers. It is intended in place of external mics or used as a built in direct box.

2.) CD/Tape Input - this 1/4" 3 conductor jack will allow you to plug in a CD player, tape or any other source to practice along with. It sums the left and right signals into a mono signal. To control the volume of the source, adjust the output volume of the device.

3.) Guitar Input Jack - this is a 1/4" 2 conductor input jack for plugging in your instrument. It is intended for guitars but will accept other instruments as well.

4.) B.A.L.L.S. (Ballistic Audio Loudness Level Saturation)- adjust this clockwise to increase the amount of distortion you Add lower ranges of the control, you get a less distorted sound, a "bluesy"tone .As you increase the gain, you add Tremendous amounts of distortion to the signal for a harder edged "crunch"tone.

5.) Bigger B.A.L.L.S.- this switch will add more distortion to the lead channel.

6.) Low - this control is the bass control for the lead channel. It is passive and set to shelve frequencies at 100 Hz. Turning it fully clockwise, the signal is unaltered. Turning it counterclockwise, the low will be rolled off -12db.

7.) Mid - this control is the midrange control for the instrument channel and is passive and set to shelve frequencies at 800Hz.Turning it fully clockwise, the signal is unaltered. Turning it counterclockwise, the low will be rolled off -12db.

8.) Preamp Select Switch- this switch selects which preamp style you are using. It will switch between the PUNCH and

GRIND.

9.) High - this is the high frequency tone control for the microphone channel. It is passive and set to shelve frequencies at 3KHz. Turning it fully clockwise, the signal is unaltered Turning it counterclockwise, the highs will be rolled off - 12db.

10.) Lead Channel On LED - when this LED light is on, it indicates that the Lead Channel is on.

11.) Volume - this is a volume control for the Lead Channel ONLY.

12.) Channel Select Switch - this switch selects between the Lead or Rhythm Channel.

13.) Bass - this control is the bass control. It is passive and set to shelve frequencies at 100Hz. Turning it fully clockwise, the signal is unaltered Turning it counterclockwise, the low will be rolled off -12db.

14.) Middle - this control is the midrange control for the instrument channel, and is passive and set to shelve frequencies

at 1KHz. Turning it fully clockwise, the signal is unaltered. Turning it counterclockwise, the low will be rolled off - 12db.

15.) Preamp Switch - when engaged, this switch will boost the treble sound of the Rhythm channel. It boosts 3 KHz by +6 db.

16.) Treble - this is the high frequency tone control. It is passive and set to shelve frequencies at 3KHz on the instrument channel. Turning it fully clockwise, the signal is unaltered. Turning it counterclockwise, the highs will be rolled off - 12db.

17.) Rhythm Channel On LED - when this LED light is on, it indicates that the Rhythm Channel is on.

18.) Volume - this is a volume control for the Rhythm Channel ONLY.

19.) Effects On/Off - this switch engages the digital effects section.

20.) Effects Level - this control adds the digital effects section and mixes it into the main signal buss. Several different effects are available.

21.) Program Select - this switch will select any of eight different effects. 2- Reverbs, 2- Echos, Chorus, Chorus/Reverb, Flange/Reverb and Tremolo.

22.) Jewel Light - this jewel light lets you know that the amplifier is on.

23.) Power Switch - this switch turns on and off the AC power to the amp.

Back Panel - (not pictured)

Speaker Out - this is a 2 conductor 1/4" speaker output jack. Rating is 4 ohms minimum.

Line Output - this is a 2 conductor 1/4" line output jack. This will allow an external amplifier or mixing board to be supplied with the signal from this amp.

Effects Loop I/O - This is an effects Insert jack. Tip send (preamp out) and ring return (power amp in).

Footswitch Jack - this is a 3 conductor 1/4" jack. This is for hooking up a footswitch to switch channels and to turn on/off the effects section.

QUAD JR specifications

The Kustom QUAD JR is an innovative compact amplifier that has established itself as a must-have for musicians seeking portability without compromising on sound quality. This powerhouse of an amp is designed to deliver rich, versatile tones suited for both practice and performance scenarios. One of the standout features of the QUAD JR is its 4-channel design, offering users a diverse range of tonal options that cater to various playing styles and genres.

Equipped with independent gain, tone, and volume controls on each channel, the QUAD JR allows musicians to shape their sound with precision. Whether you’re looking for a bright clean tone, a creamy overdrive, or a heavy distortion, this amp can accommodate it all. The user-friendly interface makes it easy to switch between channels seamlessly, making it ideal for live performances where versatility is key.

In terms of technology, the QUAD JR boasts a robust digital effects section. With multiple effects to choose from, including reverb, delay, and modulation, players have the tools they need to elevate their sound. Each effect can be adjusted, enabling users to achieve their desired soundscapes. The built-in headphone output is another notable feature, allowing for silent practice without disturbing others, making it a fantastic option for home use.

The amp is designed with portability in mind, featuring a lightweight construction that doesn’t sacrifice durability. Its rugged exterior ensures that the QUAD JR stands up to the rigors of transportation, making it a reliable companion for gigs and rehearsals alike. Additionally, the amp comes with a speaker-emulated output, providing direct access to high-quality sound for recording and live performance situations.

The Kustom QUAD JR is powered by a high-efficiency Class D amplifier, which not only conserves energy but also delivers impressive output without producing excessive heat. This technological advancement enhances performance while lengthening the lifespan of the amplifier.

Overall, the Kustom QUAD JR is a versatile, feature-rich amplifier that delivers exceptional sound quality in a compact and portable format. It’s the ideal choice for guitarists seeking an amplifier that can handle everything from practice to live performances with ease. With its combination of innovative features and robust construction, the QUAD JR is set to be a game-changer for musicians everywhere.