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Miniature D'Appolito MTM Bookshelf Speaker Kit

D'Appolito miniature transmission line Loudspeaker

D'Appolito Transmission Line

    The Mini TL is a small transmission line loaded D'Appolito loudspeaker kit. Based upon SEAS drivers, it features two CA12RCY 4.5" mini woofers and a 29TFF/W fabric dome tweeter. The crossover is externally mounted on the cabinet rear in a separate enclosure and is thereby substantially isolated from air turbulence and low frequency induced vibration. High quality components are used throughout the crossover which is terminated in two gold plated rear terminals. The crossover is configured as a split filter design and is able to support bi-wiring or bi-amping with the addition of two further input terminals. This arrangement is left as a "user DIY" option.

MTM transmission line kit DIY

Screw & Glue miniature TL

    The cabinet is approximately 16 litres internal volume and is rear-ported. The drivers are optimally placed on the front baffle for minimal diffraction effects along with the front edges which have large variable radii. The cabinet edges are finished in solid hardwood lippings.
    The acoustics benefits from modest corner placement of the cabinet, 600mm to walls to enhance the bottom registers and hold a flat bass response.

    For those without wood clamping facilities a screw and glue version is available. The screws are visible although the screw locations can be filled using wood filler and the whole cabinet painted etc as required.

(1) Impedance Mini TL D'Appolito.     
(2) Frequency Response & Phase, 1m.

Impedance Plot Mini D'Appolito TL     Frequency Response MTM D'Appolito miniature

Specifications  D'Appolito miniature TL

Description Parameters
 #  Description: 2 Way D'Appolito transmission Line.
 #  Drive Units : Bass midrange and fabric dome tweeter.
 #  LF Loading: Transmission Line
 #  Frequency Range: (55Hz to 25Khz)
 #  Flatness: +/- 1.5dB 250Hz to 10Khz @ 1m.
 #  Sensitivity: 89dB @ 1m/watt.
 #  Impedance: 4 Ohms.     Minimum 3.8 Ohms @ 350Hz
 #  Internal Wiring: Oxygen Free Copper Wire
 #  Input connections: Gold plated screw terminals
 #  Power Handling: 50W RMS conservative rating.
 #  Maximum SPL: 101dB
 #  Dimensions W * H * D)  (187 * 495 * 265)mm
  Excludes crossover depth of 42mm
 #  Nett weight: 10Kgms each.

Price: Packing, UK Carriage.
Part No Description Case Finish Price GBP
MDFAP01 Mini D'Appolito TL, Screw & Glue: Cabs only Self coloured MDF £359 /2
MDFAP02 Mini D'Appolito TL, Screw & Glue: Complete kit Self coloured MDF £870 /2
  Cabs below feature solid hardwood Lippings    
MDOAP03 Mini D'Appolito TL, Complete kit. Oak Lippings Oak Veneer £1037 /2
MDCAP04 Mini D'Appolito TL, Complete kit. Cherry Lippings Cherry Veneer £1049 /2
MDMAP05 Mini D'Appolito TL, Complete kit. Mahogany Lippings Mahogany Veneer £1049 /2
MRBAP06 Mini D'Appolito TL, Ready Built / Complete From above £1222 /2

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