# Teenage Engineering Choir Carlo Buyer Guide

Carlo’s baritone register, dimensions, controller requirements, and comparison with nearby Choir voices.

Carlo is the baritone member of Teenage Engineering’s Choir. Choose the voice and physical form you want, then verify the controller and ensemble setup.

Site: Field Guides
Category: Hardware
Version: 2026-10-18.2
Published: 2026-10-18
Updated: 2026-10-18
Freshness: Checked October 18, 2026. Specifications and catalog prices are manufacturer statements. This is a source-based buying reference, not an independent hands-on test or live offer feed.
Tags: teenage-engineering, hardware, design, teenage-engineering-choir-carlo
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## Product Links

Disclosure: Official manufacturer link; no affiliate commission from this link.

- [Teenage Engineering Choir Carlo](https://teenage.engineering/store/ch-8-carlo) - Target; Teenage Engineering; Check merchant. Carlo is the baritone member of Teenage Engineering’s Choir. Choose the voice and physical form you want, then verify the controller and ensemble setup.

## Quick Read

- Buying call: Choose Carlo for a baritone voice and a larger figure. - Carlo’s baritone register, dimensions, controller requirements, and comparison with nearby Choir voices.

## Decision

**Choose Carlo for a baritone voice and a larger figure.**

Carlo sits above Bogdan’s bass and below Miki’s tenor in the published voice scheme. That makes the comparison musical before it is decorative: listen to the baritone character with the parts you plan to play. Carlo also has the widest listed footprint in the eight-doll family, so it asks for more table space than the narrow cylindrical figures.

## Compare

**Carlo has a specific register and physical shape.**

| Item | Official specification | What it means |
| --- | --- | --- |
| Voice | Baritone | A characteristic vocal role, not a speaker frequency-response test. |
| Listed register | G2–D#4 | The family page says solo performance can adapt beyond the characteristic role; do not treat this as a proven hard MIDI boundary. |
| Dimensions | 130 × 130 × 272 mm | Leave additional room for hands, controls, and charging. |
| Weight | 1064 g | Use a stable surface and handle the wooden parts carefully. |

## Operation

**A singing instrument with a built-in repertoire.**

The solid-beech figure contains a speaker module and plays prepared songs on its own or joins other Choir dolls. A gentle tap controls play/pause, and tilting changes volume. The manufacturer specifies 3–4 hours of continuous singing. That is a battery claim, not a measured result here. Think of it as a small physical performer, not a general-purpose Bluetooth music speaker.

## Control

**Confirm Bluetooth MIDI compatibility before buying a controller.**

MIDI carries musical instructions such as notes; Bluetooth audio streaming is a different function. Teenage Engineering names OP-1 field, OP-Z, compatible Bluetooth MIDI keyboards, and Ortho Remote. The remote handles start/stop and volume; it is not a keyboard. Pairing one doll can control the group. A keyboard with USB or five-pin MIDI alone does not establish the required wireless connection.

## Setup

**Plan Carlo’s charging and update access.**

The manual lists the hidden charging inputs specifically for Bogdan, Olga, and Ivana; inspect Carlo’s own module access and cable route rather than copying another figure’s setup. Charge and test the doll individually before adding it to an ensemble. The official download page requires all participating dolls to use the same OS version. On October 18 it listed 1.2.2 with a midsummer repertoire alongside older repertoire downloads. Choose a consistent version deliberately; update files are transferred through the doll’s USB drive according to the official instructions.

## Compare

**Compare Carlo with adjacent voices and the actual bundles.**

| Choice | Reason to compare | Budget or contents |
| --- | --- | --- |
| Carlo | Your target baritone voice | $249 in the October 18 US catalog. |
| Bogdan | E2–C4 bass; choose when the lower published register is the priority. | A different named doll; verify its own offer. |
| Miki | B2–G4 tenor; a higher register with an 80 × 80 mm footprint. | A different named doll; do not reuse this page’s Amazon link. |
| Mini ensemble | Carlo + Hatshepsut + Ivana; includes Carlo | $747 catalog price: three times $249, not an observed discount. |
| Full ensemble | All eight named voices | $1,992 catalog price: eight times $249; more devices to charge and update. |

## Evidence

**Listen to the timbre and test your own connection.**

Hainbach’s first-person notes describe the interest of microphone placement and an early Mac connection problem. Choirama supplies owner research and a teardown; OP Forums contains mixed controller reports, including setup mistakes later corrected. These are useful hands-on and community sources, not standardized tests of every doll or current firmware. They do not establish today’s latency, failure rate, or battery duration. This guide has not independently auditioned Carlo.

## Buy

**Buy the named Carlo doll, not a generic Choir listing.**

[View the official Carlo product](https://teenage.engineering/store/ch-8-carlo). No exact Amazon identity was accepted for this doll. The official direct link is not an affiliate link; confirm current stock, price, contents, and returns. Other Choir names are different products, not substitutes.

## Claim Table

| Where | Claim | Confidence | Source | Caveat |
| --- | --- | --- | --- | --- |
| Compare | Carlo is the baritone doll, measuring 130 × 130 × 272 mm and weighing 1064 g. | High | Teenage Engineering (doll) | Manufacturer documentation checked October 18, 2026; no independent performance or condition verification. |
| Compare | The family page lists G2–D#4 as the characteristic register for Carlo. | High | Teenage Engineering (voices) | Manufacturer documentation checked October 18, 2026; no independent performance or condition verification. |
| Operation | The manufacturer lists 3–4 hours of continuous singing. | High | Teenage Engineering (doll) | Manufacturer documentation checked October 18, 2026; no independent performance or condition verification. |
| Control | Bluetooth MIDI controllers and Ortho Remote can control the Choir; one connected doll controls the group. | High | Teenage Engineering (manual-pdf) | Manufacturer documentation checked October 18, 2026; no independent performance or condition verification. |
| Setup | All dolls must share the same OS version to sing together. | High | Teenage Engineering (updates) | Manufacturer documentation checked October 18, 2026; no independent performance or condition verification. |
| Compare | The US feed lists individual dolls at $249, mini ensemble at $747, and full ensemble at $1,992. | High | Teenage Engineering (us-api) | Manufacturer documentation checked October 18, 2026; no independent performance or condition verification. |
| Compare | The mini ensemble contains Carlo, Hatshepsut, and Ivana; the full ensemble contains all eight names. | High | Teenage Engineering (us-api) | Manufacturer documentation checked October 18, 2026; no independent performance or condition verification. |

## Sources

- [CH-8 Carlo specifications](https://teenage.engineering/store/ch-8-carlo) - Teenage Engineering; Official; accessed 2026-10-18
- [Choir voice ranges](https://teenage.engineering/products/choir) - Teenage Engineering; Official; accessed 2026-10-18
- [Choir user guide](https://teenage.engineering/guides/choir) - Teenage Engineering; Official; accessed 2026-10-18
- [Choir operating manual PDF](https://assets.teenage.engineering/_img/636c37045334794ec4ee7f34_original.pdf) - Teenage Engineering; Official; accessed 2026-10-18
- [Choir firmware and repertoire](https://teenage.engineering/downloads/choir) - Teenage Engineering; Official; accessed 2026-10-18
- [Official US product price and status feed](https://teenage.engineering/_api/mw2/products.json) - Teenage Engineering; Official; accessed 2026-10-18
- [Hainbach first-person Choir test notes](https://www.reddit.com/r/synthesizers/comments/z13q7p/i_promised_a_video_on_the_teenage_engineering/) - Hainbach; Review; accessed 2026-10-18
- [Choirama owner research and teardown](https://github.com/jetztgradnet/Choirama) - jetztgradnet; Teardown; accessed 2026-10-18
- [Owner controller and setup reports](https://op-forums.com/t/teenage-engineering-choir-with-op-1-field/23302?page=3) - OP Forums; Community; accessed 2026-10-18

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