Engineered To Order (ETO) Routers
Images are shown for example only. Chassis and layout are selected to meet specific customer requirements.
Customers often have specific requirements that can be met with custom features and/or modifications to existing Mapletree products. Usually, these can be accommodated at nominal extra cost. The most modifiable components are those disigned to route signals and/or reconfigure system components, namely the LR 1 Line Router, the SP 1 Amplifier/Speaker Selector, and the SCC1 System Configuration Controller. Here is a brief summary of what is available. More information can be obtained from the Branches 7 Newsletter.
LR 1 Line Router
- Thestandard version is designed to switch one of up to three input stereo signals to one of up to three outputs. Other configurations are available to handle up to 6 inputs and/or outputs. Chassis sizes are chosen to accommodate the required I/O connections. As with all the Mapletree switching components, RCA jacks are high quality gold plated with inside and outside hex nuts, switches are Grayhill or C&K enclosed rotary types with silver-plated contacts.
LR 1 Pro Line Router
- This is a balanced signal version of the LR 1. The standard model can switch up to 3 inputs and 3 outputs. Additional I/O can be accommodated using special multi-deck rotary switches. XLR connectors are Neutrik gold-plated type with locking tabs on the female version.
Custom LR1 Pro with 4 inputs and one output.
"I received the switch [LR 1 Pro] today and it is exactly what I wanted and works perfectly - no noise at all when switching. I have bypassed my preamp for my DAC and LPs and have a sonic improvement".
SP 1 Amplifier/Speaker Selector
- The simplest (standard) version switches the stereo output of a power amplifier to one of two (or both) speaker systems. A typical modification is the addition of a switch for one or more amplifier inputs. All switches handling amplifier output or speaker connections are high-current rated versions of those employed in the LR 1 line router. Multi (>2)speaker switching uses toggle switches (see below). All amplifier inputs are terminated with suitable load resistors and binding posts are heavy-duty 5-way dual units.
SCC1 System Configuration Controller
- This is a custom combination of the LR 1 and SP1 that allows switching of several sources to one or more preamps or headphone amplifier, preamp outputs to one or more power amplifier inputs, and power amplifier outputs to one or more speaker systems.
"[The SCC1 is] simple elegant and effective. Does exactly what I needed it to do and has significantly reduced the effort involved in switching between components. Just a wonderful product".
BB (Black Buff) Line Level Buffer Stage
Layout designed to facilitate tube rolling.
Sweeten the sonics of your DAC or other digital source with the Black Buff line stage. It features unity gain, 50K input impedance, less than 500 Ohms output impedance, and includes a volume control and heater voltage switch for use of either a 6SN7GT or 12SN7GT tube (supplied).
Download the User's Manual
for complete specs.
Mapletree Audio Design
100 Cliff Cres.
Kingston, Ontario, Canada K7M 1A8
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Last modified November 10th, 2022