Groove Tubes Audio - SEII rackmount speaker emulator, reactive load, line-level out, 150 watts max input, parallel fx loop. $695. Single rack space. 25% or 50% power reduction, only. 2 mixer (or power amp) outs. FX send and return jacks. 2 effect outputs, too. The 4 eq bands are very effective.
Has an effects loop with Mix control; an fx loop is often great for separating a product into separate modules placed wherever you want. This loop is "parallel" so I don't know whether or not you can cleanly break the unit into two modules. Is the FX loop before the cab-sim filter?
GT Pricing - SEII - Speaker Emulator II "Converts" any amp's power section (up to 150 watts) into a "preamp" for direct recording, producing the sound and feel of power-tube distortion without the neighbors hearing. $695.
official SE-II page - SE-II Speaker Emulator. Allows the user to record the sound of a tube (or solid-state) instrument amplifier without having to employ microphones or speakers to capture the all-important sound of the output tubes and transformers. Since being granted a patent (#4,937,874) for the design of the original Speaker Emulator, the home recordist has been able to record cranked amps without disturbing their neighbors. Professional users have employed these to eliminate the variables of microphones and microphone placement, speaker quality, cabinet construction, room sound, and leakage to and from other instruments to insure a consistent sound from studio to studio, session to session. Connected to the speaker output of any instrument amplifier, this latest version incorporates a parallel effects loop and mix control to add effects after the sound of the output stage, "wet" and "dry" outputs for split feeds, and a unique speaker return output that allows the user to keep a speaker hooked up to the amp but playing back at either 50% or 25% volume. Touring musicians use this to keep on-stage volumes down while still delivering the "pushed" amp character to the house mixing board. Billy Gibbons and Eddie Van Halen have been recording and touring with our SEII for years. One of our engineer friends sends guitar and organ patches from samplers and synthesizers through tube amps to simulate an overdriven Leslie speaker before using the SE-II to run the sound through various rotary speaker simulators.
There is a 1-column comparative review in Legends of Guitar: The Quest for Ultimate Tone (see my Books page). Best of Guitar Player. Covers:
DejaNews query: "speaker emulator" and "groove tubes"
Messages 1-39 of exactly 39 matches for search "speaker emulator" "groove tubes":
Date Scr Subject Newsgroup Author
1. 97/11/20 055 Re: Using tube amp head for alt.guitar.amps dlm
2. 98/04/07 053 Attenuators, Emulators & Dum rec.music.makers.guit mousse
3. 98/09/28 052 Re: Direct Boxes alt.guitar steve_2000
4. 98/04/07 052 Re: Attenuators, Emulators & rec.music.makers.guit Steve
5. 98/03/28 052 Re: Why not intergrate, amp/ alt.guitar.amps dlm
6. 98/03/27 052 Re: Why not intergrate, amp/ alt.guitar.amps Tom
7. 98/05/13 051 Best sound: MIDI preamps or alt.guitar.amps Kurt Penner
8. 98/04/07 050 Re: Attenuators, Emulators & rec.music.makers.guit dlm
9. 98/03/04 050 Re: recording MESA direct-ou alt.guitar.amps Tom
10. 97/12/20 050 Re: Effects-Rack or Foot Ped alt.guitar Teleologist
11. 97/10/28 050 Re: best guitar amp simulato alt.guitar.amps Mark Garvin
12. 98/05/14 049 Re: Best sound: MIDI preamps alt.guitar.amps TeRRoR
13. 98/04/07 049 Re: Attenuators, Emulators & rec.music.makers.guit Rich Koerner
14. 98/05/14 048 Re: Best sound: MIDI preamps alt.guitar.amps Dutch
15. 98/04/04 048 Re: thd hot plate... #1/4 alt.guitar.amps Steve
16. 98/03/05 048 Re: HELP - wiring headphone alt.guitar Jeff Kesemeyer
17. 98/04/04 047 Re: thd hot plate... #3/4 alt.guitar.amps Steve
18. 97/01/02 047 Re: Best way to record guita alt.guitar Mark Garvin
19. 96/12/27 046 Re: Please help - Best direc alt.guitar F Eric
20. 96/11/10 046 Re: Placement of satur. tube rec.music.makers.guit Michael
21. 96/10/16 046 Re: 7 Approaches to Quiet Po alt.guitar.amps Michael
22. 96/10/15 046 Re: Low-watt power tubes#1/2 alt.guitar.amps Michael
23. 95/10/21 046 Re: MODS to CUT POWER ON AMP rec.music.makers.guit P. Psutka
24. 98/02/05 045 Re: Marshall 2000 Head #2/3 alt.guitar Steve
25. 98/01/13 045 Re: THD Hot Plate or Mar#2/3 alt.guitar Steve
26. 97/12/07 045 Re: Power Attenuators ..#2/3 alt.guitar.amps Steve
27. 96/10/15 045 Re: Direct-to-console should alt.guitar Michael
28. 98/02/17 044 Re: JCM800 Hum problem: only alt.guitar.amps john black
29. 98/01/13 044 Re: THD Hot Plate or Mar#1/3 alt.guitar Steve
30. 97/02/11 044 Re: Amp-Simulator alt.guitar.amps Tom HIWATT
31. 96/10/16 044 7 Approaches to Quiet Po#2/2 alt.guitar.amps Michael
32. 96/10/16 044 Re: 7 Approaches to Quie#3/4 alt.guitar.amps J.R. Elswick
33. 96/03/22 044 Re: Attention 6V6 experts - alt.guitar.amps Teleologist
34. 97/05/30 043 Re: direct recording rec.music.makers.guit William G. Camp
35. 97/04/08 043 RE: Power Brake #1/2 alt.guitar.amps Steve
36. 97/09/16 042 Re: Opinions wanted: Pow#2/3 alt.guitar.amps Steve
37. 97/05/30 042 direct recording rec.music.makers.guit Stephen Keay
38. 96/10/12 042 Re: Direct-to-console should alt.guitar Jonathan Schnei
39. 98/02/19 039 Better tone (more bass) from alt.guitar.amps Tone King
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