FS: Yamaha M1516A heavily modified

*Gear*ed towards individuals who are buying/selling - NOT a place for businesses to post their goods for sale.

Moderators: TapeOpLarry, tomb

Post Reply
gettin' sounds
Posts: 105
Joined: Wed Jun 23, 2004 5:41 am
Location: Statesville, NC

FS: Yamaha M1516A heavily modified

Post by Flyingeyepro » Sun Oct 06, 2019 9:20 am

For Sale: Yamaha M1516A mixing console, refurbished and upgraded. This console is a clean example of the 1980’s design by Yamaha. The console was based on similar topology that API used in their 1608 mixing consoles. The Yamaha mic preamp is very similar to the API312c preamp, utilizing a Discrete Operational Amplifier (DOA) that operates at +/-24vdc, (API2520 is +/-16VDC). The input EQ section is 4 band with 5 selectable frequencies for the Low Shelf, Low Mid and High Mid, and a single frequency for the High Shelf. Each channel has separate Insert Send and Returns. The Sends can be used as direct outs. Each channel has 2 separate XLR inputs with a selector switch on the strip. This allows the user to select the M1 input for recording and the M2 input for DAW return. An extremely useful feature when using the console for tracking and mixing. Each channel also has 4 Aux Sends, selectable as Pre/Post in pairs. The M1516A has 4 Program buses and 4 Matrix buses, all mono. Anything can be routed almost anywhere. All inputs and outputs have high quality transformers and the entire console was hand wired with quality shielded cable.

My modifications improve it even further and make it better suited for studio tracking and mixing. Here’s the list of current modifications.

1) All electrolytic capacitors in all input and output channels replaced with Nichicon capacitors of the highest quality. Low ESR (FG & VZ) for DC power, BiPolar (ES) for audio coupling and Esoteric (KZ) for the mic preamp. Power supply was recapped also, with high temp Nichicons (VZ).
2) Yamaha NE80200 DOAs were verified and solder reflowed.
3) All other Opamps (Toshiba TA7322P) were replaced with Ti OPA604 Opamps on customs PCBs. This improves dynamics and headroom while reducing the overall noise floor. Also, distortion is reduced by a factor >100.
4) All EQ circuits were replaced with real LCR filters made with quality 1% Dale resistors, 5% Kemet film capacitors and 1% Bournes/MCE inductors. Custom PCBs were also built with full ground planes and shielding. Results are very similar to API553 but with more frequencies.

Other modifications are possible including adding separate Direct Outs for each channel using EA2623-4 transformers from CAPI. This output is sourced from the Echo Pre/Post switch. This allows for the user to choose between Pre EQ/Insert or Post EQ/Insert as the recording source. An ELCO connector is added to the back panel and cable included. A switch can be added to the High Shelf EQ filter, providing 3 options for the knee frequency. The switch fits on the faceplace beside the High Shelf knob. It’s also possible to add a second input transformer and switch to the Mic Preamp, allowing for 2 different options for tracking. Options include Lundahl, Carnhill, Jensen and others. The 4 mono faders of the Program Buses can be swapped for 2 stereo faders, allowing better tracking of the stereo output levels. An even better option is to change the Program 3&4 summing Opamps from OPA604 to NE80200 DOAs. This would give the user 2 different options for summing the exact same mix in the same console. This is further enhanced by the capability to route any Program bus to any Matrix for complex parallel compression routing.

This M1516A comes with a roadcase on wheels, PW1500B power supply and cable. Cost with current modifications is $5000 plus delivery. Further modifications can be discussed. Exhaustive documentation and pictures available. Shipping via Fedex Freight or LTL. Delivery possible on the east coast. Feel free to come give her a listen.

Pictures here: https://www.facebook.com/marketplace/it ... 855934203/
Chris Mitchell
FoH Engineer
Umphrey's McGee

"e's jus dis guy, ya know?"

Post Reply

Who is online

Users browsing this forum: No registered users and 3 guests