Control Resonant Altered Speaker Locations

Four possessed speakers and a missing subwoofer drive The Complete Set side quest, and 15 Altered Speakers collectibles tell their story across Central, Downtown, and the West Incursion Zone. Most are in buildings the quest sends you to, but two only open once Langston hands you the Storage Room keycard. If Control 2 was the name you waited for, the Central map of the southwestern Collector’s Apartment leads you to where the trail begins.

Control Resonant Altered Speakers Collectible guide location screenshot

Following the trail for Map Master, Vlad Susanu found all 15 in the order the quest reveals them, and the Control Resonant Archive tracker by zone links every other set in the game. Thirteen of the 15 are at stops the quest sends you to anyway, so you’ll finish most of the set simply by searching each one properly before moving on.

Where to Find Altered Speakers Collectibles Along the Quest Route

The Downtown Auction House has four, the most of any building, and the quest brings you there twice. The Collector’s Apartment, the Auction Buyer’s apartment, the Museum of Curiosities, and the Oldest House Storage Room have two each, and the auction receipt is in the Atlantis coffee shop where the fourth speaker hides. The Downtown map of the Auction House leads you to the building where the quest finally ends.

Only two are strays you could easily walk past. A flyer for the museum lies in a back alley in southern Central, and a desperate note is in the locker room of the West Incursion Zone’s southern Pulse Fitness. Nothing in the quest points you to either one, so if your count stops at 13, check those two before anything else.

How the Altered Speakers Collectibles Follow The Complete Set

The quest has you contain four runaway SINKKI D50 speakers, at a construction site, a coffee shop, the Auction House, and the Museum of Curiosities, then recover a subwoofer the Bureau confiscated. The museum stays sealed until you destroy three Hiss orbs outside, and the West Incursion Zone map of the Museum of Curiosities places its front desk, where two of the documents are.

Langston’s Storage Room keycard opens the room where the subwoofer waits, on the Oldest House’s Executive Research floor, and both Bureau files in the set are in that room. You can’t get the card before the quest asks for it, and the Oldest House Storage Room keycard and other Key Items explain when Langston gives it to you.

The Story Behind the Altered Speakers Documents

Several documents move the quest along as you read them. The first one you pick up adds The Complete Set to your log, There’s People In There at the Auction House points you to where the speakers ended up, and the SINKKI D50 setup guide in the same building shows how the ritual wants them placed. The Complete Set walkthrough and objectives list every step in order.

Read together, the documents follow the speakers from sale to sale. The ledger and receipt record the auction, the notes in the Auction Buyer’s apartment show Peter Kenton’s landlord complaining about the noise, and a stranger’s recording tells someone “You’re not crazy; keep looking.” The Bureau’s own report ruled the subwoofer wasn’t an Altered Item, which may explain why it ended up in storage.

Altered Speakers Rewards: The Bout Guard and Panopticon Intern

The Complete Set ends with a timed ritual at the Auction House, where you switch off all four speakers before they turn back on and restart the sequence. Switching the subwoofer off costs the trapped civilian, while turning it up saves them, but either way you get the Untapped Bout Guard recipe, which raises Power recovery by 50 percent while adding 20 percent to the damage you take.

The quest is also one of six behind Panopticon Intern, alongside Freeze Frame and The Party Won’t Stop, and the Panopticon Intern trophy checklist names the rest. The Vintage Radio files in the Altered Item Reports collectibles cover the radio from Panopticon Service Request, so you can clear both sets on one run.

Why the Altered Speakers Counter Shows 16

The Archive counter lists 16 Altered Speakers, but only 15 exist, so the extra slot is a counting error rather than a hidden document (confirmed by developers). Once you have six in Central, six in Downtown, and three in the West Incursion Zone, the set is complete, whatever the counter says.

Nothing in the set is missable. The Storage Room, both apartments, the museum, and the Auction House all stay open after the credits, so a document you skipped during the quest is still there afterwards. The two Storage Room files are the easiest to leave behind, since you’ll want to rush the subwoofer back to the Auction House.

Name	Map Location	Details
$89.45 Spells HIDEWest Incursion Zone $89.45 Spells HIDE	West Incursion Zone	The $89.45 Spells HIDE is a collectible in the Altered Speakers set and a note written by someone who appears to have been in great distress. It is found on a bench in the locker room of the southern West Incursion Zone Pulse Fitness gym.
Museum Workers’ NotesWest Incursion Zone Museum Workers’ Notes	West Incursion Zone	Museum Workers’ Notes is a collectible in the Altered Speakers Set. It includes correspondence between the personnel at the Museum of Curiosities, and you can find it on top of the front desk of the Museum in the West Incursion Zone.
Warning NoteWest Incursion Zone Warning Note	West Incursion Zone	The Warning Note is another collectible you can retrieve from the Museum of Curiosities in the West Incursion Zone. It is a warning note between museum staff about a strange customer, and you'll find it on the ground behind the front desk.
The SINKKI D50 Speaker SetDowntown The SINKKI D50 Speaker Set	Downtown	The SINKKI D50 Speaker Set is a collectible and an Archive entry in the Altered Speakers Set. The document is a setup guide for the SINKKI D50 Speaker Set. You'll find it inside the Downtown Auction House, on a table by the Orientation Point.
There's People In ThereDowntown There's People In There	Downtown	There's People In There is another collectible in the Altered Speakers Set; however, it is also a key item you'll need to retrieve from the Auction House while playing The Complete Set Quest. The Audio Recording focuses on an amateur investigator who discusses the location of several mysterious speakers. You'll find it by the brown couch on the middle floor of the Auction House in Downtown.
Auction House LedgerDowntown Auction House Ledger	Downtown	The Auction House Ledger from the Altered Speakers Set is located inside the Downtown Auction House kitchen. The document is a ledger entry for the most recent auction, and it sits on the table in the large kitchen on the ground floor.
Mysterious RecordingDowntown Mysterious Recording	Downtown	The Mysterious Recording is the last collectible in the Altered Speakers that you'll have to retrieve from the Auction House in Downtown. It is on a bench in the locker room, on the ground floor of the building. The recording includes a message from a mysterious caller: "You're not crazy; keep looking."
False SINKKI LeadDowntown False SINKKI Lead	Downtown	The False SINKKI Lead is a report on a confiscated SINKKI model subwoofer, indicating that it is not an Altered Item. It is the eleventh collectible in the Altered Speakers Set, and it is found in the Storage Room (SR) on the Oldest House Executive Research floor. You can only obtain it after getting the Oldest House Storage Room Keycard from Langston as part of the Complete Set Side Quest. Look for it on the small cabinet by the back wall.
The SINKKI D50 Speaker Set (AI1201-UE)Downtown The SINKKI D50 Speaker Set (AI1201-UE)	Downtown	The SINKKI D50 Speaker Set (AI1201-UE) is an FBC file for the SINKKI D50 speaker set. It is the twelfth collectible in the Altered Speakers Set, and it is found in the Storage Room (SR) on the Oldest House Executive Research floor. You can only obtain it after getting the Oldest House Storage Room Keycard from Langston as part of the Complete Set Side Quest. Look for it on the crate by the cubicle.
Auction Purchase ReceiptCentral Auction Purchase Receipt	Central	The Auction Purchase Receipt is a document in the Altered Speakers category of collectibles. It is found on the ground in the back of the southeastern Atlantis Cafe in Central Manhattan. It is a receipt for the purchase made at the Auction House.
Exchange Location NoteCentral Exchange Location Note	Central	The Exchange Location Note is a note indicating a location for a mysterious exchange, a collectible in the Control Resonant Altered Speakers set, and an item you should read while playing the Complete Set Side Quest. It is found on a cabinet near the Auction Buyer's apartment front door.
Noise ComplaintCentral Noise Complaint	Central	The Noise Complaint is another collectible in the Control Resonant Altered Speakers set and an item you should read while playing the Complete Set Side Quest. It is found on a table in the bedroom inside the Auction Buyer's apartment. The note reveals that Peter Kenton’s landlord contacted him about the noise complaints.
Museum FlyerCentral Museum Flyer	Central	The Museum Flyer is a collectible in the Altered Speakers Set and a flyer for the Museum of Curiosities. It is found in a back alley on the southern side of the Central Manhattan area. Look for it next to a green garbage bin.
Interested In Collectibles?Central Interested In Collectibles?	Central	The Interested In Collectible note is a pamphlet advertising an online service for connecting fans of collectibles and curios. It is a collectible in the Altered Speakers Set, and you'll find it on the ground at the entrance to the Collector's Apartment in southwestern Central.
Pete, Nina and LesterCentral Pete, Nina and Lester	Central	The audio recording you can access by interacting with the phone on the cabinet by the fridge in the Collector's Apartment is another collectible in the Altered Speakers set. The answering machine recorded a conversation that takes a dark turn.

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