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PCB “Heritage” PIO Russian series TANNOY crossover Silver Red Gold HPD K Series

Regular price £270.00

Firstly, apologies, we have many crossovers for sale, we sold over 1000 pairs so far, for many models, from under £200 to over £1000, from great new caps types, to PIO (Paper in Oil) vintage caps, hand made to top quality PCB types, so, if you are confused, please read this link.

https://mainlytannoy.com/pages/tannoy-crossover-guide

We are the No 1 provider in the world of new Tannoy crossover solutions.

IMPORTANT ALLOW 1-2 APPROX WEEKS DESPATCH

The all new Mk3 A series Tannoy Speaker Crossover, follows on for the very successful Mk1 & Mk2, new bigger size 150 x 250mm, allows bigger components.

They do not use any of the old controls.  This model has  UNIQUE easy to use jumpers links for treble cut, standard & boost, similar to roll on / off. (See full below details Link 1/2/3/4 in grey text).

We also offer Vari-treble option, with internal or external pot, on most models. Many fit rear or front panel. https://mainlytannoy.com/products/up-grade-tannoy-speaker-crossover-vari-treble-hf-mid-treble-variable-adjust

Let me know your model and cabinet when ordering.

IMPORTANT ALLOW 1-2 APPROX WEEKS DESPATCH

This listing is for our NEW PCB “Heritage” PIO Russian series TANNOY crossover. for Silver Red Gold HPD K Series (25xx 31xx 38xx).

Here we have our popular Mk3 black PCB, point to point track design, gold plated tracks. Hand made, with vintage Russian NOS (new old stock) 80s 90s ex Military capacitors. We made a batch for Far East customer, and were very impressed the sound quality from these.

UNIQUE easy to use link jumpers ROLL ON / ROLL OFF - for treble standard, cut & boost, better than original as you have flat, cut & boost, (all models).  Link jumper for 3kHz notch on/off (for Reds & Silvers when needed).  Jumper link for 25 / 50 ohm link option (all models).  Air core main LF inductor.

Limited production run.  

All the capacitors are vintage Russian NOS (new old stock) 80s 90s ex Military capacitors, 160 / 200 / 300 VDC rating.  All are fully conditioned & tested and zero hours use.  We select close matched pairs, visually & years (age).Options:

You can choose “terminal blocks”, “i/p & o/p wires”, “i/p & o/p with 4 pin plugs.

We can make for:

15 ohm Blacks, Silvers & Reds, LSU/HF/3LZ, LSU/HF/12.L, LSU/HF/15.L etc, 8 ohm Golds, HPDs, 3LZ 111LZ, LSU/HF/12/8, LSU/HF/15/8 the later 8 ohm K series 25xx 31xx 38xx.

To produce a very most excellent warm vintage sound.

An almost exact replacement for old crossovers, maybe you never had any, maybe yours are faulty.

We keep being asked this question.

This is so important, we sell the only crossovers on Ebay,

with CORRECT point to point PCB track wiring, 

open visible tracks, no solder resist, with space between tracks, correct audio design, see pic 3, its like hand wiring. For that reason alone there is no comparison, we make the finest crossovers available anywhere.

So what’s new in the Mk3 version ?? Bigger PCB size - allows room for more & different components, upgraded (over A Series & VA Clarity ESA) low freq main inductor to air core and thicker wire, bigger capacitors (old was 150 x 150mm, new is 150 x 250mm). Better gold plated tracks on 2oz copper.  Military grade PCBs. tracks that "replicated" point to point wiring,  UNIQUE easy to use link jumpers ROLL ON / ROLL OFF - for treble standard, cut & boost, better than original as you have flat, cut & boost, (all models). Link jumper for 3kHz notch on/off (for Reds & Silvers when needed). Jumper link for 25 / 50 ohm link option (all models).

FULL SPECIFICATION:

Specifically designed for:

“Silver” & “Reds” LSU/HF/12/L, LSU/HF/15/L, 3LZ, 111LZ

“Golds” LSU/HF/12/8, LSU/HF/15/8, LSU/HF/111LZ/8

HPD295, HPD315, HPD385

The Mk3 version:

Bigger size - allows room for more & different components, bigger inductors, bigger capacitors (old was 150 x 150mm, new is 150 x 250mm).

Better gold plated tracks on 2oz copper.  Military grade PCBs.

Link jumpers - for treble standard, cut & boost, bit like old Tannoy roll on / roll off (all models).

Link jumper for 3kHz notch on/off (for Reds & Silvers when needed).

Jumper link for 25 / 50 ohm link option (all models).

Link 1 – there is a parallel resistor after the main HF inductor, some say it should be 25 ohms, some say 50 ohms, Tannoy Scotland say 50 ohm.  TIP .. our view is 50 ohm is best, but feel free to fiddle and you decide.  If you have no idea .. stick to the 50 ohm setting.  It makes little difference.

Link 2 & 3 – these adjust the HF .. complicated but simply .. in most cases standard mode (=30 ohm) is best.  We call this “STANDARD LEVEL MODE”.  Choices are for “BOOST” & “CUT”.  There are links for this.  Why ??  For enhanced cabinets like horn loaded GRF, where extra bass is produced, you can boost the treble to balance.

Treble cut mode – jumper link on B & D.

Standard mode – jumper link on A & D.

Treble boost - jumper links on A & C.

Link 4 “3kHz notch “honk” filter”  – Tannoy “Silver” & “Reds” as the are known, had very simple crossovers, and there was a “honk” at about 3kHz.  This link switches in or out the “3kHz honk filter”.  Many customers replacing old “grey box” crossovers for Silver and Reds, got to like these extra 3kHz frequencies, so they can choose to “have them” or not.  TIP in most circumstances, we suggest “3kHz on” is best.

Let me know your model and cabinet when ordering.

Track design - gold plated tracks on 2oz copper, design to replicated point to point wiring, using a high grade 1.6mm FR4 (high grade flame retardant) printed circuit board, track layout designed with the “star” earthing principle, with 2 separate isolated independent circuits, one for HF, one for LF

Mounting – conveniently provided with 6 black grommets are provided as mounting “spacers”, along with 6 suitable screws. 

The sound - Your speakers will be just that bit fresher and brighter, customer’s say a vail is removed with these, especially over the old the models having the roll on / roll off switches.  Based closely on the Tannoy circuits, with a few tweaks.  

Use as an upgrade over the Tannoy standard crossovers with the switches, or replacement if yours is missing or faulty.  Full frequency tested with from 10 to 30kHz. 

Input cables – (if ordered) set up for standard 2 wires use, also for 4 wire bi-amp. – There are 2 separate isolated circuits, one for HF and one for LF, then 4 input cables are provided will be quality copper 1.0mm sq also.  For regular 2 wire input, just connect 2 reds and 2 black together.

Output cables - (if ordered) supplied with 4 output cables (2 for LF, 2 for HF), 1 metre (longer on request) with quality copper 1.0mm sq wire and our own designed very superior new Gold plated aircraft grade speaker plugs.

Cable options:

1) no wires at all, terminal blocks 

2) with input & output wires (no 4 pin plugs) 

3) with input & output wires with new 4 pin plugs.