Atomic Instrument TenFifteen 4-Way Active Studio Monitors (Pair) – Satori Beryllium Tweeters – Built by Norman Druce is a used item in excellent condition, listed on Reverb. The asking price is £11,463. It is offered by Studio Mozart Gear Depot through Reverb. Local pickup is available. It is in our Studio Monitors category. This listing is no longer listed on the shop; it may have sold or been withdrawn. Used Gear Hunter first saw this listing on 24 October 2026 and last saw it on 26 October 2026. It has been seen 5 times in our scans. Prices are converted from the seller's currency when we scan the listing, so the amount you pay may differ slightly. The seller sets shipping, and import duty or VAT may apply, so check the final cost and the item's details on Reverb before buying.
From the seller
I'm selling my pair of Atomic Instrument TenFifteen main monitors, in service at Studio Mozart in Little Falls, NJ, since 2021.
These are about as rare as studio monitors get. Norman Druce, Atomic's designer, told me mine would be the first TenFifteens out the door, and he built my crossover himself. Norman has since passed away, so no more of these will be made the way he made them.
I've run Studio Mozart for over 40 years. My credits include recording featured vocals and voice work on the DUNE films and engineering for Spanish Harlem Orchestra. These monitors have been at the center of my mix room.
System details, per Norman's design:
4-way, with a dedicated amplifier channel for every driver (sub, woofer, mid, tweeter): 500 W / 500 W / 250 W / 100 W per side
Hybrid active/passive filtering at both line and speaker level
Frequency response of ±2 dB from 25 Hz to 20 kHz
Top-of-the-line input transformers feeding the sub and woofer only. The mid and tweeter path is a capacitor with a Cinemag choke as a shunt, fully balanced, so very little sits between the console and those drivers.
Tweeters upgraded to the Satori TW29BN-B beryllium dome. Norman recommended beryllium from the start. I originally went with his standard driver because of the cost, then made the upgrade later, so this pair now matches his preferred spec.
Built-in protection system. The amplification is rated 2700 W and is very efficient, with total draw capped at 2400 W (a 120 V × 20 A circuit).
New front panel and new PSU, built by Norman
Dimensions: 28" × 17" × 21"
Weight: 130 lbs each!
Condition: In service at Studio Mozart since 2021, always in a climate-controlled professional control room. They have very unique, blue finish, and I was told this is a car paint.
Included: speakers, amp, Crossover, Power Cables, Speaker cables, new DB25 connection from the crossover to the amp. I'll also include custom made Stainless Steel stands that I was using them with.
You're welcome to come hear them at the studio before you buy, and I'd encourage it.
