Arp - Synthesizer 2hp - Free user manual and instructions

Product Type	Synthesizer Module (Arpeggiator)
Brand	2hp
Model	Arp
Category	Synthesizer
Width	2 HP (10.16 mm)
Height	3U (128.5 mm)
Depth	42 mm (including power cable)
Weight	50 g
Power Supply	Eurorack +12V / -12V via 10-pin ribbon cable
Power Consumption	50 mA (+12V) / 10 mA (-12V)
Main Functions	Arpeggiator with up/down/up-down/random/order modes, clock input, reset input, gate output, CV output (1V/oct)
Controls	Mode selector knob, rate knob, reset button (optional)
Inputs	Clock (trigger/gate), Reset (trigger/gate), CV (1V/oct for note sequence)
Outputs	Gate, CV (0-5V or 0-10V depending on mode)
Panel Material	Aluminum, black anodized
Module Type	Digital (microcontroller-based)
Skiff-Friendly	Yes (low depth)
Maintenance	Clean with a dry, lint-free cloth. Do not use liquids or solvents.
Safety	Operate within specified voltage and temperature range (0-50°C). Do not expose to moisture.
Spare Parts / Repairability	Contact 2hp support for repairs. No user-serviceable parts.
General Information	Part of the 2hp series, compact arpeggiator for Eurorack systems.

Frequently Asked Questions - Arp 2hp

What is the 2hp Arp module?

The 2hp Arp is a compact arpeggiator module for Eurorack synthesizer systems. It generates arpeggios based on an incoming CV sequence or internal patterns.

How do I power the 2hp Arp?

Connect the included 10-pin ribbon cable to your Eurorack power bus board. Ensure the red stripe aligns with -12V. The module consumes 50mA on +12V and 10mA on -12V.

What arpeggio modes are available?

The Arp offers several modes: Up, Down, Up-Down, Random, and Order (plays notes in the order they are received). Select via the mode knob.

Do I need to connect a clock?

Yes, the Arp requires an external clock signal (trigger or gate) to advance the arpeggio. You can also use the internal rate knob for a built-in clock if the module supports it.

What are the CV and gate outputs?

The module outputs a 1V/oct CV for pitch and a gate signal for envelope triggering. The gate is high while a note is active.

How do I reset the arpeggio?

Apply a trigger to the Reset input to restart the arpeggio from the first note. Some modes reset automatically after a cycle.

Can I use the 2hp Arp with other modules?

Yes, it is compatible with any Eurorack module that accepts CV/gate signals. Common pairings include VCOs, VCFs, and envelope generators.

What is the physical size of the module?

It occupies 2 HP (10.16 mm) width and is 3U height (128.5 mm). The depth is about 42 mm, making it skiff-friendly.

How do I clean the module?

Use a dry, soft cloth to wipe the panel. Avoid liquids, as they may damage the electronics.

Where can I find the manual or support?

The manual is available for free download on the product page. For technical support, contact 2hp via their website.

USER MANUAL Arp 2hp

Contents

Description 3

Installation 4

Specifications 4

Diagram 5

Functional Overview 6

1. Trig Input 6
2. Reset Input 6
3. Root 6
   3a. Root CV 6
   3b. Root Knob 6
4. Chord 7
   4a. Chord CV 7
   4b. Chord LEDs 7
   4c. Chord Knob 8
5. Mode Knob 8
6. Out 8

Description

Arp is a gate-driven arpeggiator with a multitude of chord types and playback modes. Voltage control over both root note and chord type allow for sequencing any combination of chords in any key imaginable. With the rate of the arpeggio and reset capability in your own hands, you're free to create dynamic rhythmic melodies from your favorite chords. Take your tonality for a ride with Arp.

• Gate-driven arpeggiator
- Multitude of chord types, including triads and sevenths
- Unique playback modes, including random and pendulum
• V/oct tracking on Root CV input

Installation

To install, locate 2 HP of space in your Eurorack case and confirm the positive 12 volts and negative 12 volts sides of the power distribution lines. Plug the connector into the power distribution board of your case, keeping in mind that the red band corresponds to negative 12 volts. In most systems, the negative 12 volt supply line is at the bottom. The power cable should be connected to the module with the red band facing the front of the module.

Specifications

• Size: 2 HP
• Depth 42mm
• Current Consumption:

- + 1 2 V: 4 0 mA

- - 1 2 V: 7 mA

Diagram

Functional Overview

1. Trig Input

A trigger or gate signal present at this input will advance the arpeggio to the next note

2. Reset Input

A trigger or gate signal present at this input will reset the arpeggio to its root note

3. Root

Sets the initial voltage offset of the output

This can be thought of as the chord's root note

3a. Root CV

CV input for Root control

Range: 0V to +5V

Control voltage is added to the knob position

3b. Root Knob

When fully left the root will be 0V

When fully right the root will be 5V

4. Chord

Defines the relationship between the root note and the other notes in the chord

4a. Chord CV

CV input for Chord control

Range: 0V to +5V

Control voltage is added to the knob position

4b. Chord LEDs

Displays the selected chord type

Chord Type M/m LED 7th LED * LED
Major On Off Off
Major 7 On On Off
Dominant 7 On On On
Minor Off	Off Off
Minor 7	Off	On Off
Diminished Off	Off On
Half Diminished 7 Off		On On
Full Diminished 7 Off		Blinking On
Augmented	On Off Blinking
Augmented 7	On On Blinking
Sus 4	Blinking	Off Off
Sus 4 Maj 7	Blinking	On On
Sus 4 Min 7	Blinking	On Off

4c. Chord Knob

Selects the current chord

When fully left, Major triad will be selected

When fully right, Sus 4 Min 7 will be selected

5. Mode Knob

Sets the playback mode, including range and direction

• Ascending one octave
• Ascending two octaves
  • Descending one octave
  • Descending two octaves
• Pendulum one octave
• Pendulum two octaves
• Random one octave
• Random two octaves

6. Out

Voltage output for the arpeggio

Range: 0V to +5V

Plug this into 1V/Oct input of a sound generator