The InterBlock 45 provides all the key requirements for coupling an electric guitar or other electronic instrument to a PA or recording console, and also contains a built-in amp with enough power for practice or small gigs. It combines a full-service guitar preamp, overdrive section, effects loop, cabinet simulator, headphone driver, and 45-watt power amp in a single pedal-size enclosure. As the name suggests, it provides a complete interface between your instrument, your pedals, your DAW, your PA system, or a stand-alone loudspeaker, with lots of flexibility to handle whatever you may come across in your efforts as a performing artist. In spite of its diminutive size, this little powerhouse packs a potent punch capable of driving a serious stageworthy rig.
The high impedance INPUT accepts normal guitar cables. The GAIN control ranges from clean to overdrive. The three band EQ adjusts LOW, MID, and HIGH frequencies, with two selectable EQ VOICE modes. FULLQ starts from a flat response with EQ at 50%, and the VINTAGEmode emulates the “Fender Style” tone stack. A full featured FX LOOP includes a secret “audio input” feature allowing an auxiliary music source to be “injected” into the FX RETURN, which further expands the capabilities of the InterBlock 45. The MASTER control adjusts the overdrive threshold from 0 to 45 watts offering clean headroom and/or rich overdrive at will. From the MASTER CONTROL, dual signal paths lead to the BAL LINE OUT/HEAPHONE jack, and the SPEAKER OUTPUT jack, which drives any normal speaker, and is stable with no speaker connected.
Please consult the rest of this manual to obtain the best results from all these features.
Our goal at Quilter Labs is to bring you all the tone and dynamics of the best vintage amplifiers without the weight and drawbacks of tube technology. Despite its small size, this is a fully professional product, produced on a world-class production line. May your new amplifier deliver many years of faithful service and become a source of inspiration and creativity.
As shown by the InterBlock panel graphics, the signal fl ow matches the layout of typical pedals, flowing from right to left. INPUT feeds the EQ SECTION with VOICE switch, passes through FULLQ OVERDRIVE to the EFFECTS LOOP, returns to MASTER, then to switchable CAB SIM secti on, and splits to go to the SPEAKER and HEADPHONE/LINE OUT jacks.
Symptom | Action |
NO SIGNAL/LOW SIGNAL | If the amber InterBlock power light is on, confirm that the Gain, Master and instrument volumes are turned up, and confirm that input, effects loop, and speaker cables are all good. Try an alternate speaker, and try the headphones to see if signal is getting through. If the green power supply LED is on, but not the Interblock, confirm that the connection from power supply to InterBlock is fully seated. If the green power supply LED is off, confirm that the AC power is plugged in. If so, unplug the power supply from the InterBlock. If the green LED comes on, the InterBlock may be bad. If the greed LED stays off the power supply may be bad. Contact Quilter Labs for service instruction. If the sound from the InterBlock remains weak and garbled, it may need servicing. |
HUM AND NOISE | Hum and buzz are chronic problems with electronic instrument hookups. To track down the source, reduce guitar volume to zero. If the hum clears up, it is coming from the guitar. Guitar hum is frequently affected by where you position yourself, and often increases when not touching the strings. If the hum remains, unplug the guitar cable from the InterBlock. If this fixes the hum, try another cable. If hum remains after unplugging the input, unplug any devices connected to the Effects Loop. If this fixes the hum, the problem is in the pedal board. Gently wiggle all cables, listening for any fluctuation in hum level. Solderless cables often go bad after a year or two. If cables are good, confirm that the pedalboard power supply is not overloaded, which can also cause hum.If the hum remains with nothing plugged into the input or effects loop, the problem may be a ground loop between the InterBlock and outboard console. If possible, operate from the same AC strip, and if necessary, insert a ground-lift Direct Box between the Line Out and console Line In. |
LOUD SCREECHING NOISES | Be sure the speaker output is only connected to a stand-alone speaker (or left unplugged). Accidentally connecting the speaker to a signal input will often cause runaway feedback. |
HEADPHONE | If sound only comes from one side, confirm that the selector switch is set on H-PHONE and that the plug is fully inserted. |
For warranty and service information, visit our support website at support.quilterlabs.com
Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver
• Connect the product into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.